- A/D/A Digital Convertors for 500 Series?
- Vintage CX-1 decomposed
- The DIY 500 thread
- Parallel mixer & bypasser module
- D I Y Forum now active!
- A DIY lunchbox power supply
- GroupDIY 51X
- 3 Band EQ
- 500 series "vero board"
- Altec Passive EQ's
- Tube power from +/-16vdc
- new modules wanted
- Transistor swap in GAR2520 opamp
- Lunch box Enclosure
- can you say sweeeeet!