Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 23rd May 2009, 07:02 PM   #1
chuck55 is offline chuck55  United States
diyAudio Member
 
Join Date: Dec 2003
Location: New England
Default TDK vs. Alps vs. PEC pots

I was ready to buy the Alps motorized pot (has to be motorized) for a LM3875 gainclone when I came across 25K TDK which costs twice as much:

TKD Potentiometers: Conductive plastic element CP2511 model attenuators and balance controls, 25mm square by 27mm deep with 9mm threaded bushing mount,
solder lugs, no-detents, log taper 10K, 25K, 50K, 100K, 250K, 500K $72.00/stereo $44.00/mono $76.00/balance (no 500K) $85.00/10K, 25K, 50K, 100K motorized

1) Is "conductive plastic" very good quality?
2) Is log better than linear taper.
3) Would this be better than Alps or PEC?

So as not to put up too many threads, what would be an adequate soldering iron (under $50.00) / solder for the remote control kit I:
Remote 1 kit
am building?

Thanks
  Reply With Quote
Old 24th May 2009, 04:24 PM   #2
Minion is offline Minion  Canada
diyAudio Member
 
Join Date: May 2006
Location: Cowican Bay , vancouver island
While I"m no expert in Pots I can tell you that the best pots are conductive Plastic .... and for Volume controll a Logorythmic pot would be best , and Liner pot would be better for say a tone controll .....


Cheers
  Reply With Quote
Old 26th May 2009, 02:58 AM   #3
chuck55 is offline chuck55  United States
diyAudio Member
 
Join Date: Dec 2003
Location: New England
Thanks Minion.
  Reply With Quote
Old 31st May 2009, 07:37 AM   #4
diyAudio Member
 
Join Date: Feb 2009
Hi chuck55,

I wish I had a chance to give the TKD's a try, but here in Germany these pots are available at Thel Audio only, and the motorized version costs more than 4 times (!) as much as a motorized Alps blue pot. So I went for the Alps pot (have done this serveral times), and this is a very good pot for the money! I guess it's compareable to the noble pots Peter Daniel uses in his integrated GainClones.

For volume adjustment I would always use log version, either 10k, 25k or 50k, depending on your source/amps output/input impedance.

Regards - martin
  Reply With Quote
Old 31st May 2009, 07:05 PM   #5
star882 is offline star882  United States
diyAudio Member
 
star882's Avatar
 
Join Date: Mar 2007
Just get a regular one and attach a stepper motor to it.
__________________
"Fully on MOSFET = closed switch, Fully off MOSFET = open switch, Half on MOSFET = poor imitation of Tiffany Yep." - also applies to IGBTs!
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alps 27mm pots roger_dodger Swap Meet 0 8th April 2005 06:37 AM
Alps pots vs. TKD pots? TKD worth the extra$$? G Tubes / Valves 11 17th August 2004 04:33 AM
WTB:alps motor pots sma Swap Meet 0 11th February 2004 04:09 AM
control the 50k alps pots sma Everything Else 1 17th December 2003 05:13 PM
Alps pots in the UK? Kram Parts 4 18th March 2003 08:15 PM


New To Site? Need Help?

All times are GMT. The time now is 05:10 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2