Stereo Pententometer Questions

Abinder1771 · 27th July 2010, 07:58 PM

Hello everyone,
I built the 16 watt stereo tube amp kit 16LS from S5 electronics and I'm having problems with the volume control. It needs to be replaced but I don't want to use the same one. It's shorting out and causing the amp to go full volume on its own. I was wondering if anyone could recommend a good one for this amp. I don't think the original can handle the current or voltage that goes through it. That's my guess. If you could give me a part number that would be great. One day I want to build a PTP amp but for now this will have to do. Thanks in advance.
Aaron

h00hbt · 27th July 2010, 09:53 PM

Alps 100K A LOG type 18mm Volume Potentiometer Japan - eBay (item 270610668045 end time Jul-27-10 18:18:35 PDT)

rhing · 28th July 2010, 12:46 PM

Try this 100k SMD resistor stepped attenuator from eBay seller tube_buyer. I've used a few of these with great results:

SMT Resistor Step Attenuator 100K Volume Control - eBay (item 330453566190 end time Aug-20-10 03:50:46 PDT)

I also like the Alps 100k volume pot from Radio Shack (PN 271-1732):

100K Dual-Ganged Stereo Volume Control - RadioShack.com

Lastly, if you can go with 50k and different pin configuration, try the Panasonic EVJ volume pot from Digi-Key (P/N P2H2503-ND):

Digi-Key - P2H2503-ND (Manufacturer - EVJ-Y10F03D54)

I actually prefer the Panasonic EVJ volume pot the most. It works reliably, tracks well and doesn't color the sound. The pin configuration is different than most standard volume pots.

Abinder1771 · 28th July 2010, 07:33 PM

Thanks for the info Rich. I'm looking forward to getting one of them. I'm back listening to this old POS Sony solidstater that is about as warm as a snow peak. Thanks again!
Aaron

27th July 2010, 07:58 PM	#1
Abinder1771 diyAudio Member Join Date: Nov 2009	Stereo Pententometer Questions Hello everyone, I built the 16 watt stereo tube amp kit 16LS from S5 electronics and I'm having problems with the volume control. It needs to be replaced but I don't want to use the same one. It's shorting out and causing the amp to go full volume on its own. I was wondering if anyone could recommend a good one for this amp. I don't think the original can handle the current or voltage that goes through it. That's my guess. If you could give me a part number that would be great. One day I want to build a PTP amp but for now this will have to do. Thanks in advance. Aaron

27th July 2010, 09:53 PM	#2
h00hbt diyAudio Member Join Date: Jun 2007	Alps 100K A LOG type 18mm Volume Potentiometer Japan - eBay (item 270610668045 end time Jul-27-10 18:18:35 PDT) __________________ /H

28th July 2010, 12:46 PM	#3
rhing diyAudio Member Join Date: Jun 2007 Location: Bay Area, California	Try this 100k SMD resistor stepped attenuator from eBay seller tube_buyer. I've used a few of these with great results: SMT Resistor Step Attenuator 100K Volume Control - eBay (item 330453566190 end time Aug-20-10 03:50:46 PDT) I also like the Alps 100k volume pot from Radio Shack (PN 271-1732): 100K Dual-Ganged Stereo Volume Control - RadioShack.com Lastly, if you can go with 50k and different pin configuration, try the Panasonic EVJ volume pot from Digi-Key (P/N P2H2503-ND): Digi-Key - P2H2503-ND (Manufacturer - EVJ-Y10F03D54) I actually prefer the Panasonic EVJ volume pot the most. It works reliably, tracks well and doesn't color the sound. The pin configuration is different than most standard volume pots. __________________ Rich

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28th July 2010, 07:33 PM	#4
Abinder1771 diyAudio Member Join Date: Nov 2009	Thanks for the info Rich. I'm looking forward to getting one of them. I'm back listening to this old POS Sony solidstater that is about as warm as a snow peak. Thanks again! Aaron

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