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Re: Handheld QMX?


 

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And here I always thought those dual gate FETs were 40673’s. ?Ahh, the good old days when parts were visible and the part numbers could be read by the unaided eye.

Dave

On Feb 22, 2025, at 10:38, bill K7WXW via groups.io <K7WXW@...> wrote:

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I don’t know, Jerry, maybe not the norm, but a significant proportion of hams built their own gear back then. “Solid state design for the radio amateur” sold more than 50,000 copies, the ARRL handbook was filled with practical projects and a reasonable amount of electronic and RF theory, and there were still lots of local places to buy parts. I was a digital design engineer in those days, and did RF stuff when I got tired of zeros and ones.
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Or maybe my nostalgia for the golden years of DIY PCBs, ECL and 40763s, leaded components, and deadbugging continue to get the better of me. :)
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bill K7WXW

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