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In Reply to: So I have this preamp. Spectro Acoustics 217R posted by ghost of olddude55 on November 17, 2022 at 04:57:37:
Toy power supply feeding a pair of op amps.
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Follow Ups
- Looks unremarkable - E-Stat 11/17/2206:25:50 11/17/22 (13)
- RE: Looks unremarkable - 6bq5 09:03:58 11/17/22 (11)
- I opened it up... - ghost of olddude55 08:27:38 11/18/22 (10)
- What op amps are in there now? (nt) - Steve O 09:10:51 11/18/22 (9)
- 4136. - ghost of olddude55 09:38:23 11/18/22 (8)
- Jurassic op amps - E-Stat 09:50:05 11/18/22 (7)
- Apparently, the main issue with the unit. - ghost of olddude55 10:00:40 11/18/22 (6)
- Can't say for sure, but - E-Stat 10:09:20 11/18/22 (5)
- What little info I can find on this unit, the TL072 is mentioned as an upgrade. - ghost of olddude55 10:14:04 11/18/22 (4)
- The only thing you might *ruin* - E-Stat 10:23:46 11/18/22 (3)
- I don't really know much about this stuff other than "be careful what you touch." - ghost of olddude55 10:31:51 11/18/22 (2)
- Most likely - E-Stat 10:35:01 11/18/22 (1)
- I think I'm gonna give 'er another try before I start messing. - ghost of olddude55 10:43:50 11/18/22 (0)
- Not many old electolytics to replace, that's for sure. - ghost of olddude55 06:32:25 11/17/22 (0)