This amplifier got it start as a JCM800 in a very small combo cabinet. I later moved the amp to a head cabinet. I ended up selling this amp but wish I never did because some of the components like the Piher resistors and the .68uF 160V Mustards are almost impossible to find.
Parts List:
Merren 1202-118 Power Transformer
Merren 784-139 Output Transformer
Marstran C1999 Choke
AEG EL34 Power Tubes N.O.S.
RFT ECC83 Preamp Tubes N.O.S.
Cinch Bakelite Tube Sockets N.O.S.
Philips/Mullard Mustard Coupling Capacitors
Piher Carbon Film Resistors
F&T Cap Cans
PEC Sealed Potentiometers
PEC Bias Pot with Test Terminals
Bakelite Control Knobs
Belling Lee Fuse Holders N.O.S.
UF5408 Diode 1000v 3amp diodes
Mojo Head Cabinet
Swanson Combo Cabinet
Mesa Black Shadow MC-90
Here is the JCM800 Combo project in head form. I changed several things from the original build.
– Eliminated the Treble Peaking Circuit
– Removed the Bright Cap
– Replaced the ARS N.O.S. Filter Cap Cans with F&T
– Replaced the bad Radio Spares Silver Micas with Cornell Dubilier (Solved DC leakage)
– Replaced Top Hat Diodes with UF5408 Ultra Fast
The pictures below are of the original build in combo form.
