Probably not Bill since it has drifted way off original topic and
continues to do so. I posed the original question. My guess is that
the Colpitts oscillator was probably the easiest to get stable [or
nearly so] of the extant designs then because it uses capacitive
feedback. It would be the most familiar to examinees and the FCC just
settled on it. I remember that some only had to draw the schematic,
others [including me] had to complete a partial schematic and answer
questions.
Incidentally, Colpitts was also on my 1P and 2T exams. Since the only
copier then was Thermofax, once they had a question set about it, they
probably just stuck to it.
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 4/29/2020 8:44 PM, Nr4c wrote:
Will this “Mystery” ever be solved?
Sent from my iPhone
...nr4c. bill
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