2026-10-13
Capstan speed change and power supply connector
The locking toggle was added to allow speed changeover without moving solder-jumpers on the PCB. I used a locking toggle as I'm pretty sure flipping this thing by accident when the machine is powered-up would be bad.
I did this as I dislike having to use soldering equipment to remove major sub-assemblies.
It also helped in the redrawing of the PCB x-Rays and the schematic.
Tape speed internal toggle switch modification (1)
Tape speed internal toggle switch modification (2)
Tape speed internal toggle switch modification (3)
Tape speed internal toggle switch modification (4)
PM875A capstan servo power supply, post mod (1)
PM875A capstan servo power supply, post mod (2)
PM875A capstan servo power supply, post mod (3)
PM875A capstan servo power supply, post mod (4)