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Station X · 17th Apr 2018, 6:37 pm

I like things you can measure. As has been previously mentioned, check the cathode voltage. You'll soon know whether the valve is OK.

17th Apr 2018, 6:37 pm	#9
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Amplifier problem (record player) I like things you can measure. As has been previously mentioned, check the cathode voltage. You'll soon know whether the valve is OK. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.