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ms660 · 24th Jun 2017, 6:35 pm

Yes, V4's anode current as mentioned previously.

Normal routine is to measure the cathode resistor and if that's ok measure the voltage across it, from that you can work out what the combined anode and screen current is, if it's not excessive then all's normally well.

Lawrence.

24th Jun 2017, 6:35 pm	#174
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Bush A.C.91 Yes, V4's anode current as mentioned previously. Normal routine is to measure the cathode resistor and if that's ok measure the voltage across it, from that you can work out what the combined anode and screen current is, if it's not excessive then all's normally well. Lawrence.