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Old 16th Aug 2019, 11:14 am   #7
Edward Huggins
Join Date: Sep 2015
Location: Southwold, Suffolk, UK.
Posts: 5,386
Default Re: Pick up and Valve problems

If the valve does not warm up or glow over time then it has failed. A new rectifier in your Quad would be no bad thing anyway especially considering its liekly age. Easily sourced.
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