Hi all !
I am in the process of racking a pair of DBX902 DeEssers. The original FS900 is hard to come by here in France, and racking is fun and will be cheaper, so that's what I'll do, I guess.
The power supply I need is regulated +/- 15V and unregulated 24V.
I am having a hard time finding at single power transformer that would give me +/- 15V and +/-24V so I was looking at the original FS900 power supply schematics (joined here)
Do you thing it is a good idea to clone it ? If yes, here comes my questions :
- what power transformer should I use ? I cannot figure this out. My only clue is that the regulators accept max 60v at their input, and they're located between a diode so I'd say the main PSU output can't be over 40 to 50v. I'd bet 30. But is there a way to know ?
- Can you guys help identify the semi conductors : TIP128, TIP125, MPS8590 (I'd need to find an suitable replacement, it looks like it hard to find), Q2 : mistery
If no, I'll probably stick to my idea of making two generic PSUs, and I'll probably use two transformers.
Thanks a lot in advance,
thomas
I am in the process of racking a pair of DBX902 DeEssers. The original FS900 is hard to come by here in France, and racking is fun and will be cheaper, so that's what I'll do, I guess.
The power supply I need is regulated +/- 15V and unregulated 24V.
I am having a hard time finding at single power transformer that would give me +/- 15V and +/-24V so I was looking at the original FS900 power supply schematics (joined here)
Do you thing it is a good idea to clone it ? If yes, here comes my questions :
- what power transformer should I use ? I cannot figure this out. My only clue is that the regulators accept max 60v at their input, and they're located between a diode so I'd say the main PSU output can't be over 40 to 50v. I'd bet 30. But is there a way to know ?
- Can you guys help identify the semi conductors : TIP128, TIP125, MPS8590 (I'd need to find an suitable replacement, it looks like it hard to find), Q2 : mistery
If no, I'll probably stick to my idea of making two generic PSUs, and I'll probably use two transformers.
Thanks a lot in advance,
thomas