Boss DD-3 repaired

Checked the switch for D.TIME due to the problem of changing from 200mS to 800mS of delay. Found it’s not the cause. Had the wiring from the switch resoldered and it’s hey, it’s back in normal operation! Also fixed the knob for E.LEVEL wich was glued in place.

Boss DD-3 repair
A Boss DD-3 repaired

/Krister

Mullard GE diodes

Found these vintage OA5 germanium diodes in the box of vintage stuff. Beutiful diodes indeed. Got to make something with them, just don’t know what? Anyone care for a custom built pedal with these beuties under the hood and in what circuit?

Mullard OA5 germanium diode
Mullard OA5 germanium diodes

/Krister

Lady Dirt in stereo

Some pictures from the work bench.

High voltage tube pedal Lady Dirt
Lady Dirt times two.

I like how the circuit board appears in black and white.

High voltage tube pedal Lady Dirt Circuit board
Lady Dirt tube sockets and pots side of the circuit board.
High voltage tube pedal Lady Dirt Circuit board
Lady Dirt component side.

And a gut shot.

High voltage tube pedal Lady Dirt guts
Lady Dirt guts.

/Krister

Boss DD-3 repair

Got a Boss DD-3 on the workbench.

Boss DD-3 repair
The Boss DD-3 pedal

Got some problem with the pots I was told. Nice and clean on the solder side of the circuit board.

Boss DD-3 repair
Solder side of the circuit board

Here’s a picture of the component side.

Boss DD-3 repair. circuit board
Boss DD-3 circuit board

When played it seems the select knob has trouble changing from 200mS to the 800mS setting.

/Krister

New pedal under design.

Working on a new Zeta-Sound design. I’m in the tryout of a new idea. Right now the circuit is undergoing some testing and tweaking of component values. Making it sound as I imagined it would. We’ll see what comes out of it. Stay tuned for more info.

effect pedal prototyping
Circuit board fitted in a Hammond 1590B enclousure
effect pedal prototyping
Circuit board populated.

/Krister