Thread: Trio 9R-59DS
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Old 22nd May 2021, 9:03 am   #5
Jon_G4MDC's Avatar
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
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Default Re: Trio 9R-59DS

Isn't this set a known one where degradation of the wax on the coils is responsible for lower Q and Osc stopping problems? Search this forum for "Q Killer wax" and several threads come up.

I would investigate that before suspecting capacitors which were generally well made parts in those sets as far as I recall.
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