"There is much pleasure in useless knowledge." — Bertrand Russell
There are a number of interesting radios based upon using things like hex inverters or octal drivers as both oscillator and amplifier. In digging around, I found the most common chip used in this application is the 74HC240. Here’s a link to a page which contains many interesting links:
Another link to a similar design which points at a QST article which you can access if you are a registered ARRL member.
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