|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
152.131.10.193
In Reply to: RE: I'm perplexed as to why one channel of my SET amp has 4.0 mv. of hum and the other has 1.2..... posted by drlowmu on July 03, 2012 at 00:44:37
DHT's-AC heated-Individual power trannies each channel.Centertap used for cathode biasing.
Follow Ups:
OK, perfect ....so SWAP the Finals tubes and remeasure, does it go with the tubes any ?? You are "there" to find out something !!
Cheers,
Jeff
The humm is still there..but measures lower...must be a wire routing thing.
It will be partially a result of the 2A3 tubes themselves, different ones have different mVAC. Some hum is fine !!! Better than dead quiet, music playback wise !1
Jeff
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: