Deluxe Reverb Re-Issue High Frequency Noise. - 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 21st December 2008, 11:38 PM   #1
diyAudio Member
 
Join Date: Oct 2008
Default Deluxe Reverb Re-Issue High Frequency Noise.

I have a Fender Deluxe Reverb ('65 Re-Issue) that has a very quiet and very high-frequency noise coming out of the speaker. It is an extremely high frequency, I would say higher then 10K Hz, and it is very soft. It is intermittent and tone and volume controls on both channels have no effect on it. Reverb controls do not effect it and it does it when nothing is plugged into the amp. It does go away if you turn on the vibrato. Anyone run into this problem?
  Reply With Quote
Old 22nd December 2008, 09:20 AM   #2
Merlinb is offline Merlinb  United Kingdom
diyAudio Member
 
Merlinb's Avatar
 
Join Date: May 2006
Location: Lancashire
Sounds like power amp instability. I would try putting a 100pF (or even up to 220pF) cap across each of the power valves' grid leak resistors, to stabilise the feedback loop.
  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
Wanted - High Power, High Voltage, Audio Frequency Transformer Manual. kimbal Tubes / Valves 4 11th May 2009 08:05 PM
High frequency noise fraserh Everything Else 6 8th November 2008 04:35 AM
Tube Amp reverb noise, no vibrato intensity, unknown model. Help please tedsorvino Tubes / Valves 0 11th March 2008 10:21 AM
MSB Link III DAC - Frequency Lights fail to Illuminate! Anyone have the same issue? dtm1962 Digital Source 0 9th March 2008 07:39 AM
High-Frequency Noise in CD Recordings PrecisionAudio Digital Source 44 16th December 2007 08:27 AM


New To Site? Need Help?

All times are GMT. The time now is 10:32 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