Doepfer A-155 sequencer 2 for sale $315 each
Doepfer A-154 sequencer controller $200
Doepfer A-192 Voltage-to-MIDI Interface CVM16
Has rash but it's covered by standard screws. $150 shipped
Doepfer a-104 trautonium formant filter $155
Synthmonger SM-002 Pulse Width Modulators. (Euro format)
I bought this as a prototype from Synthmonger's now closed Etsy shop. His boxes though are currently sale at Analogue Haven.
The module has 2 identical circuits that take a wave and create a variable width pulse from it. The front panel is something like .75mm aluminum with a printed acetate overlay.
I figured since he offered 5 of them for sale on Etsy they were built and tested. Well many months and e-mails later he finally sends something that doesn't seem to work.
Maybe you can trouble shoot it or have good dealings with him so he might fix it. Here is a link to the schematics and board info - CMOS Pulse Width Modulators $50 shipped AS-IS.
Can be picked up in Manhattan too, will knock off a few $
Nicholas Kent