Hello to the list,
Does anyone happen to know of a source for the PT3647 final transistor used
in the Argonaut 509? Perhaps even a readily available substitute for those
transistors?
I can find them all over the web but unfortunately those huge obsolete device
clearing houses who bought up all the surplus wont sell me 2 of them. Very
frustrating indeed when they all want a minimum of $150-200 dollars per order.
I have 2 509's here and one needs some work including replacing blown finals,
my intent is to fix it up for my nephew who has a budding interest in Amateur
radio.
Any suggestions or direction on this would be greatly appreciated.
Frank
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