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Ever Ready Sky Baby - Power supplies.

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astracat:
thanx for that ,also remember those jellypot chassis with some horrid faults on also some early sony with thyristor in line output stage talking about fergy ones with 9volt stage refused to work as guy i knew used to put a pp3 battery in which guaranteed him a repeat repair few months later to replace the pp3
battery,could write a book about early repairs ,quite funny.anyway thanks for photo.,90v inverter seems interesting circuit maybe build one one day just to test i wonder if a 150 watt 12volts to 240 would work with just 6volts  in may be an experiment one day
regards
astracat

Turnip:
Hi Cat, Recall the Sony one as a 'gate turn off thyristor' where it didn't, so used a BU208 though had to snip the heat sink about a bit.

Like your inverter, but seems the 8 pin drive chip is a 12f675 M/Proc needing programming beforehand.

Checked on line, and confused although seemingly our grand kids sort 'em every day using blackberries.

Tend to turn blackberries into wine, myself - Thanks again - Chris.

Think attach a recent piccy of Chris Cockcroft and his four sisters.

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