Guitar Tube Amp Restoration and Repair by Dr. Ron

Home
Repairs
Amp Detailing
Projects
Custom Amps
Prices
About

This web site describes the custom tube amp builds.

 

Octal Champ - 5 Watts
The Octal Champ is a single-ended guitar amp with octals: 6SL7 preamp, 6F6 output, and 5Y3 rectifier.
Photos are here.

Sixteen - 18 Watts
The Sixteen has two push-pull EL84's that provide about 18 watts.
The circuit is similar to a Matchless Spitfire and Vox AC15, which gives it a variety of tones from blues to hard rock.
Christeen is loud enough for most bands. Photos are here.

The Retro - 7 Watts
The Retro uses a unique set of tubes: 6SN7 octal preamp and two 12A7's in ultralinear mode.
The sound is absolutely amazing - lush cleans and smooth distortion!
I used the original paper-in-oil capacitors, which give a creamy blues tone. At 7 watts it gets loud enough for a small club.
The tweed head gives it a cool vintage look. Photos and sound samples are here.

The Retro V - 18 Watts
The Retro V is a new design. The tubes are two 6V6s, a 12AX7 preamp and a 12AT7 long-tail-pair phase inverter.
Photos and sound samples are here.

The Sleeper - 5 Watts
The Sleeper is an idea to build a guitar amp that would look good out in the living room or den of a house with fine furniture.
It's for guitar players with wives that don't want guitar amps cluttering up their house. Photos are here.

DynaMite - 4.5 Watts
The DynaMite continues the low-volume guitar amp theme.
It has a 12AX7 preamp and phase invertor, 6X4 rectifier, and a pair of 6AQ5 power tubes, which should be about 4.5 watts.
I like to turn it up to 10 to get that lush open tube sound. The DynaMite is loud enough for a bedroom, but won't bother the neighbors
Photos and sound samples are here.