Loudness Control Calc - Help Please - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 14th December 2008, 03:43 PM   #1
diyAudio Member
 
Join Date: Aug 2008
Question Loudness Control Calc - Help Please

Hi!

I have totally broken 500k volume control potentiometer with tap from the middle for loudness control. I cannot find 500k anywhere, but I can get 100k-250k (with the tap) from vintage SS amps. The question is - anyone may help me recalculate values of caps used in loudness control - C14 and C15. Additionally, since input resistance of volume control block will be at least twice as low, coupling cap C13 needs to be changed, too, I believe, from 0.02 ukF to 0.033....0.047 ukF as per high-pass filter calculation (corner freq. 19.3 ... 13.6 Hz).

May this change affect somehow low-cut filter after volume control potentiometer?

Thanks in advance for any suggestion(s).
  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
loudness control maylar Solid State 15 29th July 2012 01:36 AM
Tone Control with Loudness ? thoronx Solid State 43 2nd March 2011 04:26 AM
Where is the error with this ohm's law calc? riotubes Parts 19 24th November 2006 05:33 PM
Looking for info on loudness control normanjr Tubes / Valves 5 26th September 2006 04:43 PM
TI-Calc speaker building Yoda Multi-Way 1 16th April 2002 12:44 AM


New To Site? Need Help?

All times are GMT. The time now is 06:00 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