Quote:
Originally Posted by aechopan
My guess for next steps would be:
-Replace that resistor for a modern one (100 Ohm, 0.25 W).
-Replace capacitors evidently leaking: - C31 with 0.022Uf Class X1, 440V
- C28 with 4.7nF Mylar/Polyester, 100V
-Replace the scary mains cable made of nylon by a modern one (2-Core 3A).
Does anything sound crazy?
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If you mean R24 the 0.25 watt rating won't be enough, power dissipated will be Isquared*R, which in the event of a bulb failure will be a lot higher, at least 2.5 watts or possibly more because the resistor in a failed bulb situation will be passing the heater current and the HT rectifier current, for cooler running use a 5 watt job.
C31...X2 class will be ok if you can get one.
You need to up your voltage rating for C28, 630 VDC should be ok.
Lawrence.