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Old 18th Jun 2019, 11:06 am   #62
vampyretim
Hexode
 
Join Date: Aug 2011
Location: Bristol, UK.
Posts: 471
Default Re: Mullard 5-10 amplifier

Hi all,

I've done all voltage readings as per Mullard circuits for audio amplifiers (with Avo 8 mostly on 1000v setting).

EF86
A-140V
S-70V
K-1.7V

ECC83
A-230V
A1-210V
G-50V
G1-50V (the hiss disappears when I take this voltage reading)
K-55V
K1-55V

EL84 1
A-335V
S-340V
K-12V

EL84 2
A-335V
S-340V
K-13V

Could hiss be caused by R6? I will try a replacement shortly.
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