Volume pot for simple se

newtube · 18th May 2009, 09:48 AM

Guys, i have a cheap 100k volume pot on my simple se and i need to upgrade it, it is very cheap and nasty, it even squeaks when its turned

What would you go for? 50k or 100k?
Log or lineer?

Do they have any affect on sound? i guess they do?

Thanks guys,
Darran.

azazello · 18th May 2009, 10:42 AM

2 -10 kohm !!
/If the middle pin of 100 k is on down side - low volume - 5-10 kohm,
input signal across from the up side - 90 kohm, and there is big resistance
for MF and HF for input signal, and small input current doesn't enouht
for input capac. of input tube, and there is decrease of HF/ /sorry for bad English!/.

timpert · 18th May 2009, 11:42 AM

The PEC (Precision Electronic Components) KK series have a pretty good rep soundwise. I have one, and it is of proper construction, you won't break this thing easily. Their website is http://www.precisionelectronics.com/. I bought mine from Digi-key. You 'd probably be best served with a logarithmic potmeter that has a value between 10k and 50k.

n_maher · 18th May 2009, 03:24 PM

I was originally going to use the PEC pot mentioned above for my Simple but in a wonderfully boneheaded maneuver I didn't leave quite enough space for it (missed it by >< much) so I ended up using an Alps RK27 pot. Seems to be working just fine. Of course knowing now just how sweet this amp sounds I might have sprung for something a bit nicer. I recently saw that Headamp (a manufacturer of solid state and electrostatic headphone amplifiers) started offering some of the parts that they use for sale to the DIY community. I've used the DACT attenuators that he sells and they are superb and the RCA jacks are also very nice. The parts are listed here and I received my last order from him (RCAs) in a matter of days.

newtube · 18th May 2009, 07:57 PM

Quote:

Originally posted by n_maher
I was originally going to use the PEC pot mentioned above for my Simple but in a wonderfully boneheaded maneuver I didn't leave quite enough space for it (missed it by >< much) so I ended up using an Alps RK27 pot. Seems to be working just fine. Of course knowing now just how sweet this amp sounds I might have sprung for something a bit nicer. I recently saw that Headamp (a manufacturer of solid state and electrostatic headphone amplifiers) started offering some of the parts that they use for sale to the DIY community. I've used the DACT attenuators that he sells and they are superb and the RCA jacks are also very nice. The parts are listed here and I received my last order from him (RCAs) in a matter of days.

Man, thats an ****!
You fitted something better than i have though, looks like a nice pot you did squeeze in though, certainly better than i have at the moment!

Thanks for the pointers guys, upgrade is on its way.

dcbingaman · 19th May 2009, 02:34 AM

Check out familygate on eBay - they still have some 50K and 100K linera taper pots for sale - much better than the RK27 blue dudes......

n_maher · 19th May 2009, 03:08 AM

Linear pot = no thanks. I still have an audio/log taper RK40 in my parts drawer, I'm sure I'll use it some day.

Apex Jr · 19th May 2009, 03:34 AM

PM Sent

Steve @ Apex Jr.

18th May 2009, 09:48 AM	#1
newtube diyAudio Member Join Date: Mar 2009	Volume pot for simple se Guys, i have a cheap 100k volume pot on my simple se and i need to upgrade it, it is very cheap and nasty, it even squeaks when its turned What would you go for? 50k or 100k? Log or lineer? Do they have any affect on sound? i guess they do? Thanks guys, Darran.

19th May 2009, 02:34 AM	#6
dcbingaman diyAudio Member Join Date: Dec 2005 Location: St. Louis, MO	Alps RK40 Black Beauty Check out familygate on eBay - they still have some 50K and 100K linera taper pots for sale - much better than the RK27 blue dudes......

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18th May 2009, 10:42 AM	#2
azazello diyAudio Member Join Date: Aug 2008 Location: Bulgaria	2 -10 kohm !! /If the middle pin of 100 k is on down side - low volume - 5-10 kohm, input signal across from the up side - 90 kohm, and there is big resistance for MF and HF for input signal, and small input current doesn't enouht for input capac. of input tube, and there is decrease of HF/ /sorry for bad English!/.

18th May 2009, 11:42 AM	#3
timpert diyAudio Member Join Date: Nov 2004 Location: Netherlands	The PEC (Precision Electronic Components) KK series have a pretty good rep soundwise. I have one, and it is of proper construction, you won't break this thing easily. Their website is http://www.precisionelectronics.com/. I bought mine from Digi-key. You 'd probably be best served with a logarithmic potmeter that has a value between 10k and 50k.

18th May 2009, 03:24 PM	#4
n_maher diyAudio Member Join Date: Jul 2005 Location: Seacoast, NH	I was originally going to use the PEC pot mentioned above for my Simple but in a wonderfully boneheaded maneuver I didn't leave quite enough space for it (missed it by >< much) so I ended up using an Alps RK27 pot. Seems to be working just fine. Of course knowing now just how sweet this amp sounds I might have sprung for something a bit nicer. I recently saw that Headamp (a manufacturer of solid state and electrostatic headphone amplifiers) started offering some of the parts that they use for sale to the DIY community. I've used the DACT attenuators that he sells and they are superb and the RCA jacks are also very nice. The parts are listed here and I received my last order from him (RCAs) in a matter of days.

19th May 2009, 03:08 AM	#7
n_maher diyAudio Member Join Date: Jul 2005 Location: Seacoast, NH	Linear pot = no thanks. I still have an audio/log taper RK40 in my parts drawer, I'm sure I'll use it some day.

19th May 2009, 03:34 AM	#8
Apex Jr diyAudio Member Join Date: Jun 2002 Location: Torrance, Calif	PM Sent Steve @ Apex Jr.

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