Re: Ferrograph 4A: Restoration advice needed
Thanks for the wrangling!
The EL84 has no continuity except h-h.
The thermistor out of circuit reads 110k Ohm at room temperature. Am I right in thinking that the thermistor and R35 are a divider to keep the screen current constant?
There is no indication I can see for the thermistor's values in the parts list: "Thermistor STC. A1 522/100" is all it says.
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