Threshold SL10 tantalum and mica caps ID

johnsciolino · 30th September 2004, 02:09 AM

Need an alternative sugestion for replacing the following caps in pic labeled 47 20v (one channel had been replaced with 100 10v on 15v circuit. Also would like to change those brown Mica caps in the RIAA eq circuit. The Mica Caps are 100pf, also have a couple .0033uf anf .015 uf mylar in phon0 path. Styrene should be a better replacement for the RIAA circuit.
Have a couple of unidentified brown Mica caps labeled 20+/- 3% ADI and +1.5N05. This is in the Threshold SL10 going on 25yrs old.
This preamp had the FET upgrade.
The phono section has some degraded freq response
http://munsonandbryan.com/Ebay/SL10004.jpg (larger pic)

Nelson Pass · 30th September 2004, 06:18 PM

You can get a schematic at

www.passlabs.com/np/

thomas997 · 30th September 2004, 09:48 PM

That top electrolytic looks like its leaking, or rusting, or something.

:/

johnsciolino · 30th September 2004, 10:53 PM

I believe the FET upgrade took this preamp to a FET 1 preamp using the 2N5566 FET. Would you have that schematic available?
I tested the cap ESR which appeared to be leaking but it tested good. I will end up changing these anyway due to age.

30th September 2004, 10:53 PM	#4
johnsciolino diyAudio Member Join Date: Aug 2004 Location: florida	Thanks Nelson- FET 1 I believe the FET upgrade took this preamp to a FET 1 preamp using the 2N5566 FET. Would you have that schematic available? I tested the cap ESR which appeared to be leaking but it tested good. I will end up changing these anyway due to age.

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30th September 2004, 06:18 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	You can get a schematic at www.passlabs.com/np/

30th September 2004, 09:48 PM	#3
thomas997 diyAudio Member Join Date: Feb 2004 Location: Vancouver	That top electrolytic looks like its leaking, or rusting, or something. :/

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