Does anyone know what the early 80s SC-2 models used for parts? Pot and cap values, in particular? I haven't seen a schematic for these.
I just picked up an 83 SC-2 on epay. I should get it later this week.
Vintage SC-2 Internals
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chuck0765
- Posts: 8
- Joined: Sat May 01, 2010 4:43 pm
- Location: RI
Vintage SC-2 Internals
99 Legacy Special, 03 ASAT Special Deluxe, #120 25th Anniversary, 83? L1000, ?? Legacy HB
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Miles Smiles
- Posts: 610
- Joined: Fri Mar 05, 2010 2:02 am
- Location: Europe/Austria
Re: Vintage SC-2 Internals
You may have a look at this and the next photo in my gallery (click at the photo there until you get the high resolution one):
http://i.wuell.net/gallery/view_photo.p ... d=IMG_4551
The pots are CTS, 250 kOhm with solid shafts, see here: http://www.glguitars.com/shopping/shopexd.asp?id=20
I don't know if the brown capacitor on the tone control was factory or not. I removed it anyhow.
The pots were very noisy, but I didn't want to replace them. In fact I didn't have spare ones like that. So I soldered them out and disassembled them. The carbon layer was good, so I cleaned everything, and lubricated with vaseline. Put it together and they are as new since than.
You can omit the step with the vaseline, if that was good, I'll see in future, but some people are doing this. It should keep dust away from the layer, but you have to be very quick when soldering it in again, as hot vaseline gets fluid. So next time I maybe will try that without soldering the pot out.
On this picture you can see how it looks now:
http://i.wuell.net/gallery/view_photo.p ... d=IMG_4656
Clean, except for the old solder mess on the volume pot, but for the vaseline inside, and for my weak 25W soldering iron, I couldn't remove, but that's cosemetic anyhow.
http://i.wuell.net/gallery/view_photo.p ... d=IMG_4551
The pots are CTS, 250 kOhm with solid shafts, see here: http://www.glguitars.com/shopping/shopexd.asp?id=20
I don't know if the brown capacitor on the tone control was factory or not. I removed it anyhow.
The pots were very noisy, but I didn't want to replace them. In fact I didn't have spare ones like that. So I soldered them out and disassembled them. The carbon layer was good, so I cleaned everything, and lubricated with vaseline. Put it together and they are as new since than.
You can omit the step with the vaseline, if that was good, I'll see in future, but some people are doing this. It should keep dust away from the layer, but you have to be very quick when soldering it in again, as hot vaseline gets fluid. So next time I maybe will try that without soldering the pot out.
On this picture you can see how it looks now:
http://i.wuell.net/gallery/view_photo.p ... d=IMG_4656
Clean, except for the old solder mess on the volume pot, but for the vaseline inside, and for my weak 25W soldering iron, I couldn't remove, but that's cosemetic anyhow.
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chuck0765
- Posts: 8
- Joined: Sat May 01, 2010 4:43 pm
- Location: RI
Re: Vintage SC-2 Internals
Thanks. The one I have looks identical, so the ceramic cap on yours was probably origincal.
99 Legacy Special, 03 ASAT Special Deluxe, #120 25th Anniversary, 83? L1000, ?? Legacy HB
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Miles Smiles
- Posts: 610
- Joined: Fri Mar 05, 2010 2:02 am
- Location: Europe/Austria
Re: Vintage SC-2 Internals
Already thought that.chuck0765 wrote:Thanks. The one I have looks identical, so the ceramic cap on yours was probably origincal.
I saw a more recent schematics for the S-500, where that cap (C3) is in too: http://www.glguitars.com/schematics/S-5 ... iagram.pdf
It just cuts constantly treble off. Without that, at some settings, I've always to roll back the tone control, at other settings it works well. So i probably will not put it in again.