Search found 4 matches

by davebr
Wed Sep 20, 2017 6:32 pm
Forum: PAiA Jabber
Topic: Output Module
Replies: 0
Views: 26378

Output Module

I built an output module for a customer in a PAiA double wide module. The module runs off +/-9V and includes an AC coupled main output buffer, headphone amplifier, and A-440 Hz reference generator. Each of these also has an individual mute switch. It also has adjustable gain for the Main and Headpho...
by davebr
Sun Sep 17, 2017 2:26 pm
Forum: PAiA Jabber
Topic: Scope Module
Replies: 1
Views: 15712

Scope Module

I built a scope for a customer in a PAiA double wide module. The scope requires +5V at 270 mA so it isn't powered by the PAiA supplies. However, this particular PAiA cabinet is powered by a +5V supply that generates the PAiA supplies so it is powered from that. It looks pretty nice. Details are on m...
by davebr
Mon Aug 14, 2017 6:49 pm
Forum: PAiA Jabber
Topic: PAiA 4780 Sequencer repair parts
Replies: 0
Views: 25270

PAiA 4780 Sequencer repair parts

I just did a repair on a PAiA 4780 sequencer where several of the unobtainium CTS multi-turn potentiometers were broken. In addition, a side-lead LED was bad. I was able to make repairs fir both. Details are on my 4780 page at http://modularsynthesis.com/paia/4700/4780/4780.htm . Dave http://modular...
by davebr
Fri Oct 24, 2014 1:50 am
Forum: PAiA Jabber
Topic: MIDI2CV8 DIP switch to rotary switch?
Replies: 5
Views: 22222

Re: MIDI2CV8 DIP switch to rotary switch?

I repackaged my MIDI2CV in a 2U MOTM-style module. I used push button hex and BCD switches for the midi channel and mode. I had to invert the signals to work with the switches so I also piggybacked an inverter IC. The page is fairly brief but outlines what I did with photos on my site at http://modu...