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dekor8tor · 12th Jul 2019, 7:47 pm

Good evening Frank i have just checked voltages on G3 both valves they both read 300v
Should i change the components as stated by Michael or are the valves gone
Many thanks
Also when the amp is powered up with no speaker connected there is a strange squealing noise coming from the amp

12th Jul 2019, 7:47 pm	#39
dekor8tor Triode Join Date: May 2016 Location: Cannock, Staffordshire, UK. Posts: 41	Re: Hacker GP42 and AL42 restoration help Good evening Frank i have just checked voltages on G3 both valves they both read 300v Should i change the components as stated by Michael or are the valves gone Many thanks Also when the amp is powered up with no speaker connected there is a strange squealing noise coming from the amp Last edited by dekor8tor; 12th Jul 2019 at 7:54 pm.