Video and pictures of the V2 zeta-sound clone of the Maestro PS-1A phase shifter.
Mainly changes made in the main circuit board layout , allowing the stompswitches a bit more centered and using onboard in/output jacks. The speed selector circuit works the same as in V1, tap the switch and change the speed through three presets. Blue -> Slow, Green -> Medium, Red -> Fast.
Laney Klipp100 amplifier after modification. The master volume pot was a mod already made. It now holds a switch for channel selection, a 6,3mm jack for remote channel switching and indicating leds for each channel.
Back of the amplifier. Bias pot, bias measuring points , effects loop with send level pot and a gain switch.
Here’s an image with the channel switching circuit board installed using optocouplers .
A closer look at the gain switch mod and the effects loop.
Here’s an image of the bias pot with measuring outlets and the transformer for the channel switching circuit,