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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: help posted by mfitz on April 1, 2015 at 21:11:15:
I don't know who you are, or what circuit you have built.How about three quick measurements please? Amp at idle, measure carefully and SAFELY !!!!!
(1) The VDC and ( more importantly ) the VAC ( or mVAC ) of the B+ that feeds the primary of your output transformer. That would be "C2" in a typical L1/C1/L2/C2 filter.
(2) The VDC and VAC ( more importantly ) of the B+ at "C3", the main cap that feeds B+ to the front end stage(s).
(3) The VAC , ( actually mVAC ) "across" each output terminal, that feeds your speaker, ( the secondary of your output transformer ) with amp at idle.
FYI, I'd like to see 900 mVAC as a maximum for (1), 2 mVAC or less for (2) and a low mVAC for (3).
What is the sensitivity or efficiency of your speakers?
SAFETY FIRST please, use clip leads and one hand in back pocket for the first two.
Jeff Medwin
Edits: 04/02/15
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- 3 First Measurements Please, - drlowmu 01:06:24 04/02/15 (0)
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