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ms660 · 1st Oct 2018, 9:03 pm

It's hard to be exact with R31 but somewhere around 300 ohms might be ok for 240 volt operation, the test would be to measure the voltage across the valve heaters after it's been fitted.

I can't comment about the bulbs, I've not seen that type before.

380k for the thermistor would indicate that it's not very well, someone might recognize the type from a photo perhaps? I would expect it's resistance at 100mA to be somewhere between 200 and 300 ohms as a first guess.

Lawrence.

1st Oct 2018, 9:03 pm	#19
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Help Identifying Capacitor It's hard to be exact with R31 but somewhere around 300 ohms might be ok for 240 volt operation, the test would be to measure the voltage across the valve heaters after it's been fitted. I can't comment about the bulbs, I've not seen that type before. 380k for the thermistor would indicate that it's not very well, someone might recognize the type from a photo perhaps? I would expect it's resistance at 100mA to be somewhere between 200 and 300 ohms as a first guess. Lawrence.