01-06-2012, 09:00 AM
(31-05-2012, 08:34 PM)pwdrive Wrote: Hello David, looking at the circuit I would have thought that the two tuning coils on your mystery connections coil would have a similar number of turns and a similar resistance to the two tuned aerial coils.
The large coil could be the coupling coil and a self resonator.
What does the oscillator do?
Lawrence.
Thanks Lawrence - I'll check the aerial coil for comparison.
As to what the oscillator does, of course it doesn't! I must have been asleep at the wheel when I wrote that - it's a TRF not a superhet, so it's the reaction coil. Except that at present, it's a corpse.
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'







