Marstran Jtm45

Metro still offers the transformers ($$$). We decided to leave the original RI PT in it. If I get the money I will 1 day have Valvestorm build one/Metro spec, for me. Du testest dann aber mit angeschlossenem LS, oder? Wie hoch die Ausgangsspannung des Generators ist weiß ich nicht genau, ich dachte sehr niedrig (mV bis 1V) um den AÜ nicht zu zerstören. If you see your amp here and some of the information is missing feel. Disclosure: this OT has been rewound. Hi Axel, Speakerbuchsen befolge ich. PM me with an email address & i'll get them to you. Der YJM100 hat tatsächlich diese "Übergröße", das ist mir als er neu rauskam auch sofort aufgefallen. Bran & Craven and Underwood were in attendance. "JTM45 PT works great. Your amplifier transformers recieve the same level of detail as with our designs residing in fighter jets and critical space applications. I have step by step build instructions from Metro Amp for the JTM45, 50 wat (1987 circuit) and 100 watt plexi amp kits. The JTM45 is the greatest amp ever built, giving you Fender cleans when you want them and rich, organic overdrive Marshall when you demand it. ClassicTone # 40-18095, Marshall Style 45W / 50W Upright & Upgrade Power Transformer with 100/120/240V for JTM45, JTM50, 50W JMP & 50W JCM800 40-18095 $122. Je lui ai dit que je ne voulais pas forcément de "period correct" sur ce projet (alors que pourtant c'est son leitmotiv), mais quelque chose qui sonne. According to the Wallace site, the Abaddon is a single-channel, four-gain-stage-preamp master volume amplifier that has the. Even though there was a little less gain, it didn't affect playability, and we never struggled with the amp. According to the Wallace site, the Abaddon is a single-channel, four-gain-stage-preamp master volume amplifier that has the. Jack, one option you have is buy a reissue JTM 45 head. Hunn Amplification LLC JTM22 is a custom designed, lower power JTM45 circuit with 2x6V6 output tubes and ClassicTone transformers. A Marstran PT will give you a spot on proper plate voltage, and it looks great with the lugs as opposed to the flying leads. 3k, secondarys 4,8 & 16 ohm, 2 x EL34, these were used in a few 60s JTM45s, complete with B. JTM45 Style Power Transformer 1202-55:. What's the deal with brands of Transformers? If you are into amps you probably have heard lots of hype about different transformers. Also pdf layout's of every plexi made & lots of other stuff. Re: JTM45 Clone Build These 2 are before I found the 2 problems I had and before I got the line wired in. CLICK HERE TO CONTACT FOR SHIPPING QUOTE. The OT is a Marstran RS clone as is the 20H choke. If you don't turn the amp up too far, or else only partially attenuate you're probably going to be OK. IME the 50s are quite a bit louder than the "45s". Those are some awesome looking amps. Marshall JTM45 Build Can't afford a real one of these so I built one. Those were his two favorite amps and he wanted to compare them side by side and then keep the amp he liked best. Description and pack size will be displayed. A little push on the front end and that puppy sang! Heck Ed, you could draw up a schemo when you get it back. The amp is a metro spec jtm45, I built it following the kit instructions pdf on valvestorm. JTM45 Re-Issue OT. I believe Mick (Hopeless) used Metro transformers in his JTM45 in preference to the Ceriatone ones they look pretty well made, and certainly sound good in the flesh (although it's hard to say what a transformer sounds like!!). I will be going heyboer for that little price difference. I'm interested in any metro forum member experiences with Metro, Marstran, ******, and MM versions of the Radio Spares Deluxe JTM45 OT in your JTM45 amp or other amp(s) particularly when. Dagnall D2505. Description: Great vintage era type constructed, paper layer wound power transformer for 50W JTM45** "type" amplifiers requiring laydown style mountings (a. Page 1 of 2 1 2 My JTM45 has Marstran JTM45 trannies, and sounds. 2xKT66 power tubes, 3x12AX7 preamp tubes, and GZ34. I really need to get my priority's straight!:rofl This one is going to be going slower than my 5E3 build up mostly because it is in the middle of my vacation time from work and it is a much more costly amp to build. There are sorta two issues with the build, but the more prominent one seems to be with the OT. I have the Subway Rocket Reverb and there just is not much out there on. Premium guitar amplifier power transformers, output transformers and chokes. If you want to get involved, click one of these buttons!. Early offset Marshall, No serial number. Find out for yourself why this amp remains a classic! - Aluminum chassis based on a real JTM45 - Alumimark, Gold or White plexi faceplate with proper logos - Phenolic board material like the originals. Heisann alle sammen! Jeg sikler noe utrolig på den gode gamle marshallen JTM-45. Re: JTM45/100 Chassis by kentwde » Sat Mar 05, 2011 5:13 am Personally I'd prefer the IEC on all my amps but I it seems like a period correct version would be a lot more valuable to builders in general wanting to make it just exact and therefore more marketable in general. Auch ich war sehr lange Zeit dieser Überzeugung, zumal die Erklärung mit der Reduktion der Wirbelstromverluste durch die hier gegebenen gegenseitigen Isolation der Kernbleche sehr einleuchtend ist und dies auch 'genau so' in der einschlägigen Literatur rauf- und runtererklärt wird. Trade ideas would be humbuckers or 12” speakers. A Marstran PT will give you a spot on proper plate voltage, and it looks great with the lugs as opposed to the flying leads. Though the 6. Marstran JTM45 PT's (1202-55) give the correct B+ voltage. IMO, the output transformer is probably the most important piece of the puzzle in assembling a clone of an original JTM45. Beware of these substitutes! These may be substandard products that are not true replacements, use inferior construction methods and materials and lack the great features and pricing of our ClassicTone transformers. 18watt: Manufacturer: Power: Output: Choke: ClassicTone: 40-18035: 40-18037: Mojotone: 18watt Power. Heres my newest creation, its a Metroamps JTM45-100 kit with Marstran transformers (1203-80 PT and 1202-119 OT). There is a fair bit of confusion seeing as the amp is called a JTM45, and then Marshall came out with "50W" amps. JTM45 Head After checking out all the great info at the Yahoo JTM45 group and scoring a Weber 6M45 chassis from eBay, I finally got started on my JTM45 build. A great paper layer wound output transformer with 8K Ohm primary for use with KT66 tubes. Damnit, I just bought a pair! Except I got them from a dealer, who sells them for about $30 less than MM's list price. No expence spared on the build of this amp. Heres my newest creation, its a Metroamps JTM45-100 kit with Marstran transformers (1203-80 PT and 1202-119 OT). After the fourth song it blew its fuse (the fuse that can be replaced from the back of the head). It even has a vintage RadioSpares output transformer, which the last time I checked these sold for 2 grand alone. Your quest for truly inspirational and superior tone has led you to the final link in the chain - Mercury Magnetics. I went with a Fender Bassman RI power tranny and a Marstran JTM45 output tranny, and a JTM45-spec choke from Graydon Stuckey ; head cab from Mojotone. You may need to click on each picture to see the pic without truncation. Merren Audio power transformers are engineered for long-life and trouble free operation. 2xKT66 power tubes, 3x12AX7 preamp tubes, and GZ34. 68uF 160V Mustards are almost impossible to find. But I was lucky enough to have two '65 block logo JTM45's when I had my JTM45RI modded with a PTP board and installed Marstran OT and PT. supposed to be able to push 4X12 no problem. PIO paper in oil capacitor ,PEC potentiometers ,external bias etc. , as I don't have a clue as to best caps, trannies, vendor, price/performance, etc. Its a killer amp. Next, i'd go for a good output transformer upgrade, the Marstran RS clone is awesome. Beware of these substitutes! These may be substandard products that are not true replacements, use inferior construction methods and materials and lack the great features and pricing of our ClassicTone transformers. I am selling a Marshall JTM45 replica head with as many NOS parts as you can find including vintage NOS GEC KT66's, matching vintage NOS Mullard ECC83/12AX7 pre-amp tubes, and a vintage NOS Mullard GZ34 rectifier. I used to own a completely stock bluesbreaker that I couldnt sell fast enough. I am selling a Marshall JTM45 replica head with as many NOS parts as you can find including vintage NOS GEC KT66's, matching vintage NOS Mullard ECC83/12AX7 pre-amp tubes, and a vintage NOS Mullard GZ34 rectifier. Door beide kanalen te mengen vind u uw perfecte balans tussen het typische 'volle' JTM45 geluid, en het meer aggressieve 'bright' van de 1959SLP. Well, I thought I would start a thread re the ludicrous first build I am going to attempt: build a JTM45 from almost scratch. A mounting nuts & bolts, Condition is Used & tested, worldwide shipping please contact for an accurate quotation. The amp has two parallel standard channels, just like the Marshall JTM45 and 1959 Super Lead. Marstran Output Transformer for Marshall Plexi JMP50 Drake 784-139 This transformer is a copy of the one used in JMP50 amps from 1967 until the 1980's. I have a modified (JTM45/JTM50) head for which I'm considering changing the OT from a Mercury Magnetics 050 JM OT to a Radio Spares Deluxe JTM45 OT clone. The clones seem a bit fuller and a bit louder, they sometimes lack a little of the complex noise artifact that can be interpreted as harmonics, this one seems to capture the tones very well in this clip. For me it depends on the day, I will have both 1&2 at 10 with no BB Preamp played with R8 (this allows me to meet my neighbors ) or I drop them down to 2 and use the BB Preamp and set for what I want to hear. There are also a handful of amps documented in the Marstran database with very similar specs. I'd love to find some more information about these and also how much they may be worth as I sadly think I've misplaced the amp. JTM45 Style Output Transformer 784-103: $145. 5k input impedence. Trade ideas would be humbuckers or 12” speakers. After the fourth song it blew its fuse (the fuse that can be replaced from the back of the head). Not all distributors or resellers are alike! Many offer various other brands besides ClassicTone. metro's 352-114 is 5h and their c1999 is 8h. Soundsamples of an original JTM45 on german guitar magazine where Udo uses a 65' jtm45, that 1k resitor and 1000v cap are quickly explained. Wiley (The Marshall Bluesbreaker), afirma que a Marshall começou a tirar de circulação os exemplares com a inscrição JTM45 ainda na primeira metade de 1966, substituindo-os gradativamente por exemplares com a inscrição JTM50, que permaneceriam em produção apenas pelos últimos 06 meses daquele ano. I was under the impression that the Merren PT's have high & low voltage secondaries, though I may be wrong about this. Well this is going to be my second, and most likely last, build of the year. Blog sobre efeitos de áudio para guitarra e outros instrumentos, com publicações sobre a história, o emprego e a classificação dos diferentes tipos de efeitos sonoros, voltado para instrumentistas, pesquisadores e produtores musicais. Early offset Marshall, No serial number. It even has a vintage RadioSpares output transformer, which the last time I checked these sold for 2 grand alone. The preamp tubes are some early Telefunkens I have been saving for this project. last, the B+ voltage of the park 45 is higher of maybe 30 to 40 volts but despite the fact it gives it more headroom, i don't think it really changes the frequency response. to find a good OT for that JTM45 RI, i read several topics on different forums and it seemed the Marstran 103 OT was one of the best 784 103 OT clones, so i decided to buy it. I very much prefer it over the Mxxxx (a well known and respected Marshall Plexi style amp OEM and transformer dealer) PT (ClassicTone # 40-18033) since this one has the right voltages" Roe F. For both amps he got original Marshall heads and gutted them. IMO, the output transformer is probably the most important piece of the puzzle in assembling a clone of an original JTM45. The Drake output transformer (p/n 784-103) has a primary impedance of 8,000 ohm. Single phase and three phase power transformers Small printed circuit to 30 KVA Complete prototype design and product testing Custom power applications and tube type. heyboer, and heyboer is $50 more total for PT OT and Choke. Bill this should give you an idea of what a Metro JTM50 sounds like. Metroamps semble en en difficulté mais leur kit JTM45 est sorti haut la main d'un test réalisé ds la presse spécialisée. But I thought I would host this MP3 demo of Udo Pipper from Germany doing a live performance with his skatterbrane pickups. JTM45/100s are once again the same circuit values as the JTM45 with an even beefier transformer set, running a quad of tubes. IME the 50s are quite a bit louder than the "45s". special order. Marshall Plexi 1987 Hatcher This is a Ron Hatcher kit with Marstran's 128 JTM50 clone output transformer. Nearly 50 years since its creation, the Marshall JTM45 remains both a relevant and near-perfect example of what a great rock 'n' roll tube amp should be. Ot Problem With New Jtm45 Build. På den anden forstærker er denne identifikation desværre brækket af. I built a jtm45 and I love it that is tone heaven, but the rhythm guitarist in my band build a 69 spec Superbass and I figured since there isn't a kit for the 1967 Superlead I could just gather the parts and go from the BB layouts and bits of information I learn from peaking at pics from amparchives and so on. (Je ne retrouve plus le lien vers le comparatif). However, it's far from stock - I've ended up modding the amp by cascading the gain. We've done may a tastes test with his JTM50 and my Metro JTM45. PM me with an email address & i'll get them to you. Paulorpcf, quem escreve que a tensão do secundário de HT do transformador de potencia do JCM800 é 320Vac ou 345Vac (!!!!!) e 390Vac para o JTM45 (!!!!!) jamais viu de perto qualquer um deles e desconhece completamente as especificações dos transformadores originais desses amps. Uses the Hoffman board layout. this is NOT me. Although the Bluesbreaker sounded good, the JTM45 is in a whole other universe! A huge upgrade, really. Seriously? You're AGAIN picking up your marbles and leaving? I thought you were "wood" and would even pull a shotgun on someone just for hiding one of your game pieces?. There are sorta two issues with the build, but the more prominent one seems to be with the OT. Quick links. Circula na web um layout "alternativo", produzido pela "dreamtone" que contém um erro bastante grave, resultado da má, ou péssima, interpretação de um circuito original "de fabrica" do 2204/1987, publicado pela Marshall em 1988, de onde provem o erro original. Damnit, I just bought a pair! Except I got them from a dealer, who sells them for about $30 less than MM's list price. The tonestacks in jtm45s (all of them) are finnicky but they sound heavenly. 2uF för att få fullrange-boost och sedan en 0. The JTM45 combos had tremolo, and it was optional in the heads - although very few heads have surfaced like that. Very hard on the KT66 screen grids though. A 'normal' and a 'bright' channel, both with their own volume potmeter. si c'est pas abuser il serait sans doute appréciable de demander une photo de l'intérieur du circuit à Phil X le 213 troubadour me semble différent du 214 ou je me trompe ? Il faudrait qu'il démonte le transfo et qu'il nous l'envoie aussi c'est une blague hein ! un bon transfo mercury fera l. JTM45 RS Style output transformers are made to original gray Hammertone finish with original style bolts. Marstran output transformer 6. I have enough NOS components in my stash to do a full NOS component Back Flag/Reverse Logo build & also to rebuild my footswitchable 2204/Tim Caswell #39 mod amp with NOS components. Ce qu'il y a aussi, c'est que dans mon jtm, j'y ai installé un transfo de sortie marstran, replique des Radiospares Deluxe (1ers transfo utilisé par marshall je crois, parce que y avait rien d'autres et c'etait tres repandu dans le monde de la hifi) : les sonorités etaient moins agressives que les transfo suivant, les Drake. A short clip of the new JTM22 - an ES-335 straight into Channel 2 of the amp with a slant 4x12 cabinet loaded with Celestion Greenbacks. No expence spared on the build of this amp. How you operate the tubes (push-pull, push-pull parallel, ultra-linear, class, B+, bias, operating points, etc. A Marstran PT will give you a spot on proper plate voltage, and it looks great with the lugs as opposed to the flying leads. I only gig classic and hard rock with a few blues tunes. 50W Marshall Output Transformer reproduction This is an exact hand wound reproduction of the original 784-139 50W output transformer used in Marshall amps from the late 60's through late 70's. JTM45 Re-Issue OT. Mercury and Marstran make iron for this I haven't seen the Heyboer set, but I am sure there is one. Here is the backplate I made for this build. He is in the r. I'm glad you brought that up. This section will help explain how changes in wall voltage affect plate voltages. JTM45 Style Power Transformer 1202-55:. Not all distributors or resellers are alike! Many offer various other brands besides ClassicTone. Trade ideas would be humbuckers or 12” speakers. Because the primary to secondary voltage is a turns ratio the voltage on the secondary will change. A little push on the front end and that puppy sang! Heck Ed, you could draw up a schemo when you get it back. 1966 Marshall JTM45/100 and Strat - Duration:. For me it depends on the day, I will have both 1&2 at 10 with no BB Preamp played with R8 (this allows me to meet my neighbors ) or I drop them down to 2 and use the BB Preamp and set for what I want to hear. Because the primary to secondary voltage is a turns ratio the voltage on the secondary will change. 2013-03-26T20:11:57Z 2013-03-26T20:11:57Z https://drtube. Marstran transformers, PEC pots, Sozo vintage caps. Hunn Amplification LLC JTM22 is a custom designed, lower power JTM45 circuit with 2x6V6 output tubes and ClassicTone transformers. A great paper layer wound output transformer with 8K Ohm primary for use with KT66 tubes. Marstran transformers were installed along with vintage glass and British KT-66 output tubes. Det blev i løbet af 1966 ændret til JTM50. CLICK HERE TO CONTACT FOR SHIPPING QUOTE. I have 450VDC at the 32uf filter cap leading to the center tap of the OT, and then 450VDC out of one leg of the two primaries, but nothing out of the other leg. Anyway, Marstran or one of those Graydon Stuckey sites has loads of pics of the internals of JTM45s to 1987s, 1986s, etc. A Detailed Pictorial Chronicle Of Early Marshall Amps. re: jtm45 by David B » Mon Jul 18, 2016 12:25 am Another thread on this amp, I only skimmed through but there seems to be some question on the impedance switchgreat amp none the less. 1966 Marshall JTM45/100 and Strat - Duration:. He is using a self built JTM45 with marstran OT with Vox Conqueror with `66 silver bulldogs. Do you want the fatter sweeter tones or abilty to go higher (note not truly 'hi-gain') gain levels. metroamp, germino, marstran, wallace amps, ceriatones jtm45 is better than the marshall reissue and then there's TADs kits which are supposedly good if you're gonna build your own. På den anden forstærker er denne identifikation desværre brækket af. Auch ich war sehr lange Zeit dieser Überzeugung, zumal die Erklärung mit der Reduktion der Wirbelstromverluste durch die hier gegebenen gegenseitigen Isolation der Kernbleche sehr einleuchtend ist und dies auch 'genau so' in der einschlägigen Literatur rauf- und runtererklärt wird. I'm building a 1x12 JTM45 combo type amp for a client and am considering using a Marstran JTM45 power tranny. Well, I thought I would start a thread re the ludicrous first build I am going to attempt: build a JTM45 from almost scratch. I'd love to find some more information about these and also how much they may be worth as I sadly think I've misplaced the amp. No expence spared on the build of this amp. Det er helt fortryllende at se hvorledes forstærkere fra midten af 60'erne stadig fungerer stort set uden ændringer. RVevolution Junior Member. Tubes: Some killer tubes here for you. Hi Axel, Speakerbuchsen befolge ich. The data on this page reflects the approximate year that these amplifiers were made and not the actual dates of manufacture of the amplifier. habe ich noch einen Ausgangsübertrager für einen 50W Marshall übrig, der in meinem 50W einem Marstran weichen musste. Nad : 1964 Marshall Jtm45 Replica! Best One You've Ever Seen! (pic-heavy) Discussion in 'Building the Classics' started by Beano Addict, Oct 27, 2016. Amplifier and amplifier modification kits. If you don't turn the amp up too far, or else only partially attenuate you're probably going to be OK. Bit of a mismatch actually but it's part of what gives the JTM45 it's character. I really need to get my priority's straight!:rofl This one is going to be going slower than my 5E3 build up mostly because it is in the middle of my vacation time from work and it is a much more costly amp to build. I'd love to find some more information about these and also how much they may be worth as I sadly think I've misplaced the amp. But its a little close for comfort, as a cranked distorting JTM45 will probably put out a good 50W or more. A short clip of the new JTM22 - an ES-335 straight into Channel 2 of the amp with a slant 4x12 cabinet loaded with Celestion Greenbacks. IMO, the output transformer is probably the most important piece of the puzzle in assembling a clone of an original JTM45. So I was jamming with a couple of mates the other night, and for the second time (with the same guys) I've been totally drowned out by the other guitarist and drummer. First thing to do is swap out the filter cap cans for the correct values and install KT66s. Mojotone Quick Order Form! Please, follow these basic instructions to place your order: Add only the numerical characters of the Item Number. FAQ; Logout; Register; Home Forums At the Workbench Mark Durham Memorial; Donations. also most of the mojotone transformers are heyboer, i verified that with the guy from heyboer that the ones i am looking at ARE heyboer. It drives me nuts that people buy these things and gut them because it's not a "proper" circuit. Beware of these substitutes! These may be substandard products that are not true replacements, use inferior construction methods and materials and lack the great features and pricing of our ClassicTone transformers. Sono un nuovo utente e quindi come prima cosa mi presento. Yes does sound very good. Ich habe mir mal Mercury Trafos angeschaut, aber ich finde die irgendwie übertrieben teuer. Wallace Amplification would like to welcome FULLMOON GUITARS as its Japanese distributor. This is a fellow Metro forum members amp built by Metro forum member Roadrunner. Those are some awesome looking amps. Bran & Craven and Underwood were in attendance. Pěkná JTM je tak za čtvrt mega a víc, plexina pak za pětinu - když má člověk štěstí. That gets you closer. JTM45 non tremelo amp running a plate voltage of 425 volts. Damnit, I just bought a pair! Except I got them from a dealer, who sells them for about $30 less than MM's list price. Deze kanalen zijn intern doorgelust met hetzelfde resultaat als wat bij de Marshalls veelal wordt gedaan met een externe patch-kabel tussen de inputs. I'm looking a super early spec JTM45, so I'm definately looking for the sound of the circuit rather than just the looks. "JTM45 PT works great. Use the Heyboer Transformers and the C1999 Dagnall Choke for 1966 and the other for earlier Bluesbreaker sound. Also pdf layout's of every plexi made & lots of other stuff. si c'est pas abuser il serait sans doute appréciable de demander une photo de l'intérieur du circuit à Phil X le 213 troubadour me semble différent du 214 ou je me trompe ? Il faudrait qu'il démonte le transfo et qu'il nous l'envoie aussi c'est une blague hein ! un bon transfo mercury fera l. If I get the money I will 1 day have Valvestorm build one/Metro spec, for me. Ich bestelle mir irgendwann mal einen Pacific-Übertrager, um ihn mit dem von Ingo Gorges und dem Deluxe-AÜ zu vergleichen. 00 Marstran special order $155. Many Classic Tones seem a bit higher based on the voltage charts that people post on Metroamp when they are having problems IMO 460-470 is too high for a correct JTM45. JTM45 Style Power Transformer 1202-55:. Attention aux très nombreux faux qui traînent sur internet. Leslie 120 Hammond Organ Speaker Cabinet This is a Leslie Model 120 unpowered cabinet. CLICK HERE TO CONTACT FOR. Jetzt suche ich quasi eine Alternative. Gold Lion KT66s and Mullard reissue Marshall JTM45 '65 Clone. RackDoctor bought the JTM45/100 block-end I built a while back. We've done may a tastes test with his JTM50 and my Metro JTM45. Der YJM100 hat tatsächlich diese "Übergröße", das ist mir als er neu rauskam auch sofort aufgefallen. Normal and Bright inputs. Marstran Output Transformer for Marshall Plexi JMP50 Drake 784-139 This transformer is a copy of the one used in JMP50 amps from 1967 until the 1980's. Dann habe ich übrig: JTM 45 NT, JTM 45 AÜ, 1x GZ34, diverse neue Oktal- und Noval-Sockel sowie 1 Celestion Greenback und 1 Weber Ceramic Blue Dog, beide 8 Ohm. A JTM45/100 would be a great amp. cuz I ain’t one by Tcaradonna » Tue Jan 22, Marstran RS Output. Jetzt suche ich quasi eine Alternative. last, the B+ voltage of the park 45 is higher of maybe 30 to 40 volts but despite the fact it gives it more headroom, i don't think it really changes the frequency response. If I get the money I will 1 day have Valvestorm build one/Metro spec, for me. Ich bestelle mir irgendwann mal einen Pacific-Übertrager, um ihn mit dem von Ingo Gorges und dem Deluxe-AÜ zu vergleichen. Damnit, I just bought a pair! Except I got them from a dealer, who sells them for about $30 less than MM's list price. Metro still offers the transformers ($$$). Do you want the fatter sweeter tones or abilty to go higher (note not truly 'hi-gain') gain levels. A mounting nuts & bolts, Condition is Used & tested, worldwide shipping please contact for an accurate quotation. Hi Axel, Speakerbuchsen befolge ich. Though the 6. Lots of good clips of it on his YouTube page. This is a fellow Metro forum members amp built by Metro forum member Roadrunner. Marshall JTM45 + 2061CX + Celestion V-Type (Box of Rock. Mijn amps zijn met name geschikt voor de muzikanten die zoeken naar de ultieme vintage buizensound in een modern gebouwde en betrouwbare amp. Well if it is home brewed it has all the right parts in the right order. Selling the most amazing sounding JTM45 I ever had abd played ! It was Handwired with all premium parts including Marstran Transformers, Allen Bradley's carbon comps ,. For both amps he got original Marshall heads and gutted them. Please Contact Us for more information on placing a special order. Amplifier and amplifier modification kits. A Marstran PT will give you a spot on proper plate voltage, and it looks great with the lugs as opposed to the flying leads. Mic pre is a Chandler LTD-1 with no EQ engaged directly into Pro Tools. however, many of the chokes used today in plexi clones are 5h, 7h, 8h or even 10h. The grid stoppers might vary, too. this is NOT me. RVevolution Junior Member. Ampli a lampes Marshall JVM205h. Door beide kanalen te mengen vind u uw perfecte balans tussen het typische 'volle' JTM45 geluid, en het meer aggressieve 'bright' van de 1959SLP. RackDoctor bought the JTM45/100 block-end I built a while back. I sold the Marshall Bluesbreaker combo in the middle to finance the purchase of my custom-made JTM45 shown above. No expence spared on the build of this amp. Ich bestelle mir irgendwann mal einen Pacific-Übertrager, um ihn mit dem von Ingo Gorges und dem Deluxe-AÜ zu vergleichen. Its a killer amp. Totally forgot about this thread! I ended up getting a Marshall 1966a (vertical 2x12 slant) locally, but I did get Eric to make me 2 headshells, one for my Ceriatone/Marstran JTM45 and the other for my yet to be built 18w clone. "JTM45 PT works great. This guy in the vid is a longtime friend of mine and I have played this amp many times. Only things I see are the bypass cap on the lead channel mixer, snubber cap, bias caps look a bit big. Which is the best JTM45 clone kit? Discussion in 'Amps Ok, tell me about this. He also has period correct 50 watt plexi chassis'. I once built a '68 spec 50W head with Marstran. I'm thinking about upgrading the output transformer in the AC30 to either a Heyboer or Mercury Magnetics one. Using my Edwards Les Paul with Righteous Sound Brielle humbuckers. I sold the Marshall Bluesbreaker combo in the middle to finance the purchase of my custom-made JTM45 shown above. Marstran Output Transformer for Marshall Plexi JMP50 Drake 784-139 This transformer is a copy of the one used in JMP50 amps from 1967 until the 1980's. the Marstran spec -103 has the original Drake colour codes. OT, solid core vintage cloth Draht, Carbon Composition resistors, Carling Switches,Cliff jacks, usw. There are also a handful of amps documented in the Marstran database with very similar specs. I very much prefer it over the Mxxxx (a well known and respected Marshall Plexi style amp OEM and transformer dealer) PT (ClassicTone # 40-18033) since this one has the right voltages" Roe F. Plus Shipping. Many Classic Tones seem a bit higher based on the voltage charts that people post on Metroamp when they are having problems IMO 460-470 is too high for a correct JTM45. Of course I had to tweak it with a Marstran 128 JTM50 clone output transformer, vintage preamp tubes and Siem. Next, i'd go for a good output transformer upgrade, the Marstran RS clone is awesome. If you see your amp here and some of the information is missing feel. The OT is a Marstran RS clone as is the 20H choke. FWIW : Brian at Marstran as well as some others would be interested to perform a documented (video) inspection prior to teardown to see exactly the state. There always seems to be that person who replaced their transformers and claim that they suddenly had a magical sound. I've come this far and want to know if I'm missing out on anything. I have a JTM45 RI that my buddy (jbzoso2002) put together for me. Det kan bli lite bluddrigt, särskilt i en Bassman, eller för den delen en JTM45:a vars krets är nästan identisk med 5F6-A. FAQ; Logout; Register; Home Forums At the Workbench Mark Durham Memorial; Donations. Clone of the legendary Marshall JTM 45 hand-wired, only custom parts are used (SOZO capacitors, TAD - Gold Cap electrolytic capacitors, Marstran PT u. Hi, Leute! Ich möchte mal eine kleine Disskusion zum Thema Übertrager anstoßen. Beware of these substitutes! These may be substandard products that are not true replacements, use inferior construction methods and materials and lack the great features and pricing of our ClassicTone transformers. Re: JTM45 Clone Build These 2 are before I found the 2 problems I had and before I got the line wired in. Nice amp! I got my HW in February! I play all the different channels but mainly i have them jumped. Damn tech lol. Early offset Marshall, No serial number. I checked with Mojotone they are out of stock on the JTM45 PT. Based on a tear down of original Drake 784-103. I made a bottom board up similar to the one Alex (908ssp) made for his offset years ago. 2 main channels avec 3 gain settings. CLICK HERE TO CONTACT FOR SHIPPING QUOTE. The JTM45 was first built in 1963, handmade in an all-aluminum chassis, by Ken Bran; Dudley Craven and Ken Underwood. Marshall JTM45 Build Can't afford a real one of these so I built one. Though the 6. But its a little close for comfort, as a cranked distorting JTM45 will probably put out a good 50W or more. All transformers are double varnished and baked for ultra low noise operation. Disclosure: this OT has been rewound. If your volume control is a 50W RMS one, then it's probably just about OK for a 35W RMS JTM45. As far as the OT, never have tried the Marstran, but George's Heyboer spec sounds absolutely killer. Tra l'altro lo paragonavo al mio clone JTM45 con OT Marstran che ha dei bassi da "discoteca" (di solito li metto a 2). Because the primary to secondary voltage is a turns ratio the voltage on the secondary will change. Either are great. JTM45 Head After checking out all the great info at the Yahoo JTM45 group and scoring a Weber 6M45 chassis from eBay, I finally got started on my JTM45 build. JTM45 RS Style output transformers are made to original gray Hammertone finish with original style bolts. Single phase and three phase power transformers Small printed circuit to 30 KVA Complete prototype design and product testing Custom power applications and tube type. At the end of the experiment he decided to keep the JTM45. Match Pair Genalex Gold Lion KT66 valves on the output. Hi all, I’m new to this forum and have a set of original jtm 45 drake transformers/choke. The place for vintage amp discussion. Jetzt suche ich quasi eine Alternative. Então fiquei mais tranquilo pois sem matar os vizinhos pelos ouvidos posso usar pedais de drive e até pedais valvulados como drive nele. What’s the deal with brands of Transformers? If you are into amps you probably have heard lots of hype about different transformers. Marstran JTM45 PT's (1202-55) give the correct B+ voltage. JTM45's and later Marshall's have the output tube plates connected directly to the first filter cap (obviosly through the output tranny). Ordered it today from BYOC. Bin sehr gespannt, ob das Resultat so dramatisch ist, wie die Jungs es kolportieren. I left the AC inlet at power cord size it can be trimmed out to accommodate any size conector. Drake Output Transformer 784-213 Vintage Marshall Plexi Carlsbro, this is from 1969, fully tested, the primary impedance is 4. He also has period correct 50 watt plexi chassis'. also most of the mojotone transformers are heyboer, i verified that with the guy from heyboer that the ones i am looking at ARE heyboer.