19-10-2012, 09:59 AM
If a capacitor is connected to the anode or screen or HT I always make sure that any replacement has a working voltage that equals the main HT voltage + at least a 100v margin as a minimum, my own preference is the usual yellow jobies at either 400 or 650 vwkg or higher if across the output transformer etc. Capacitorst might only be subjected to low HT in the circuit under certain normall operating conditions but this voltage can rise substantialy under certain fault conditions ie: valve cut off etc etc.
Having now seen the circuit I would go with a bog standard polyester type if a ceramic one isn't to hand.
Lawrence.
Having now seen the circuit I would go with a bog standard polyester type if a ceramic one isn't to hand.
Lawrence.
