Caveat:
Only decent tubes (radio valves) which are still made are russian--aren't they?
John
"Caveat Lector" wrote in message
news:IsrGe.22435$HV1.3739@fed1read07...
Thank you - curiosity satisfied.
Just curious as how often these are used today
I do know about colpitts, hartley, pierce, wien, clapp, TGTP, relaxation,
crystal, negative resistance, dynatron, etc
Anyone remember the dynatron oscillator? Tetrodes me lads tetrodes.
--
CL -- I doubt, therefore I ask
"Ham op" wrote in message
...
Caveat Lector wrote:
Just out of curousity -- what modern Ham gear uses a Colpitts oscillator or
a swinging choke ??
Then why ask these questions on a 2005 Ham test ??
Maybe ask about a VCO or a crowbar circuit ??
All of them!!! The reference oscillator in every phase locked loop is
generally a Colpitt's oscillator. I suspect that every oscillator in the
VCO circuit is also Colpitt's.
By simply asking the question you make the point!!!
The required level of knowledge for a license today is significantly poorer
than 40 or 50 years ago.
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