These other finishes usually require the assistance of a professional to apply or purchase preapplied, usually at additional cost, so be aware. They were prone to coming loose or breaking. Sovtek-„MIG-50“-Verstärker Sovtek ist ein russischer Hersteller von Elektronenröhren und Röhrenverstärkern für elektrische Musikinstrumente. Ron Neeley of Ronsound started offering mods to Big Muffs in the late 1990’s. In 1999 Jack Orman () published his A Close Look at the Big Muff & Proco Rat e-book, featuring an in-depth examination of the circuit and several mods. Cast aluminum bottom panel and anodized sheet metal top panel. The B+ voltage was now only 380V something.
Last update July 2014 PART 1 • PART 2 • PART 3 • PART 4 WHY ARE THE TRANSISTORS LABELED IN THE REVERSE ORDER? — Note that Q1-Q4 and D1-D4 are labeled in reverse order from input to output on these schematics than they are on a typical schematic. The «treble boost» is the secret weapon IMHO. Chords positively *shimmer*… As for getting yours serviced, any decent amp tech should be able to help you out. I don’t think there’s anything special or tricky about Traynor’s circuits. Even though it was actually not a common V1 circuit at all, most boutique BMP clones used this schematic.
Looking at just the BMP section of this circuit you will find it is different from the ’74 circuit. Place of Manufacture: St Petersburg, Russia There were several variations on the Civil War Big Muff color schemes in the mid 1990’s as the colors transitioned into the all-green enclosures most commonly seen on later Version 7C Big Muffs. You’ll ultimately do a better job and enjoy the experience more. I used a 3/4 inch hole saw in my « inch drill to cut the two miniature 9-pin tube socket holes that were centered on the marks that I laid out for them. But I would think your comments make total sense to me and that a filed resistor would definitely cause the problem.