Re: 454 fireworks


John
 

Let's hope it's not Q1197 gone s/c as it's a pig to replace (mechanically). With the EHT unpowered at least you can trouble-shoot the PSU. NB the -12V is the reference for both +75 and +12V rails so needs to be correct / set first. Once you have the power-supply working fingers crossed the EHT section comes good.
John

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