Custom built fOXX Tone Machine

Here’s a custom built fOXX Tone Machine from zeta sound, dressed in velvet.

fOXX_Tone Machine Custom built
fOXX Tone Machine Custom built

Used the same circuit board layout as in this build. Hosted in a Hammond 1590BB enclosure.

fOXX_Tone Machine Custom built
fOXX Tone Machine Custom built
fOXX_Tone Machine Custom built
fOXX Tone Machine Custom built
fOXX_Tone Machine Custom built
fOXX Tone Machine Custom built

/Krister

Work in progress

Some images from the workbench.

Mounting hardware in a Lady Dirt tube pedal.

Zeta Sound Lady Dirt high voltage tube pedal
Lady Dirt high voltage tube pedal

The circuit board of the Bull pedal. There’s silicone diodes clipping and in the front of the image you ses two germanium AA144 diodes. There’s three BC184 transistors and one 2N3904. Posted earlier here.

Bull pedal
BULL circuit board

Just had to take this picture. A cap from the 1950:s vs a modern one, same uF and voltage rating.

vintage vs new capacitor
Cap vs cap

Here’s a gut shot from the new prototype of the Maestro PS-1A clone.

MaestroPS-1A Clone zeta-sound
Maestro PS-1A clone.

/Krister

Yamaha CH-01 Chorus repair

A chorus from the -80:s, the Yamaha CH-01. Based on the MN3009 256 stage BBD chip and the MN3101 clock generator.

Yamaha CH-01 repair
Yamaha CH-01 Chorus

Had the circuit recaped and trimmers adjusted for bias, clock speed and depth.

Yamaha CH-01 repair
Yamaha CH-01 Chorus circuit board

And here we have a chorus once again delivering.

Yamaha CH-01 repair
Yamaha CH-01 Chorus

/Krister