JTM45 Amp Build
You can pretty much get the gist of how I build amps from my other blogs so I am not going to do a painful step by step.
I decided to do a JTM45 clone this time around as I needed a really good clean amp that would take pedals nicely.
This amp uses the same methods in my other amps such as PTFE wire throughout and beefed up stainless steel hardware.
It took me a very long time to get the transformers but I would say they are worth the wait. This amp was completed in November of 2008. Some of you are wondering
why I changed the name from "Rachelle" to "hell". Well, I got a divorce from the woman I named the amps after so I chopped off the "Ra" and the last "e". They
are now titled "hell" which is an appropriate name as any of you know that have gone through a divorce!
- Metropoulos Amplification aluminium chassis
- Metropoulos Amplification front and back plexi indicator plates
- Metropoulos Amplification red swirl perforated point to point circuit board hand drilled and turreted
- Marstran 1202-55 power transformer
- Marstran 784-103 output transformer
- Marstran C1999 20H choke
- Preamp tubes supplied by Tube Tramp: V1 = N.O.S. Sylvania, V2 = N.O.S. GE, V3 = N.O.S. JHS
- Power tubes supplied by Tube Tramp: Shuguang KT66
- Rectifier supplied by Tube Tramp:= Sovtek
- Amphenol tube sockets
- CTS potentiometers
- N.O.S. Mustard capacitors .10uF and .018uF
- F&T cap cans
- N.O.S. Lemco silver mica capacitors
- N.O.S. Red Dogbone capacitor
- BC capacitors on board
- N.O.S. Allen Bradley military spec carbon comp resistors in select positions known to preserve original "mojo" tone
- Carbon film resistors in correct positions for low noise
- Vintage tophat diode
- N.O.S. Plexi bakelite knobs
- N.O.S. Bulgin A.C. socket and right angle Bulgin power cord
- PTFE Teflon coated high temp wire throughout
- Hardware is all upsized and is all stainless steel
- Nylok nuts in most positions
- Mojo Plexi small head cabinet in Marshall black levant tolex covering with gold piping
Here are some clips:
Clips 1 and 2 were recorded with a Washburn N2 with a strat type sound.
Strat Type - dry
Strat Type - comp/eq/chorus/reverb
Clips 3 and 4 were recorded with my Tele that has a single Dimarzio PAF in the bridge. I used a Tube Screamer clone with Landgraff mods for the crunch.
Bridge PAF Type - dry
Bridge PAF - comp/eq/doubler/reverb
JCM800 2204 "Jeanie"
JCM800 2204 "Vickie"
JCM800 2204 "hell"
JCM800 2204 "Prototype"