29-03-2012, 07:19 PM
It might be worth winding several turns of say 20 SWG tinned copper wire around a soldering iron tip and leaving say an inch protruding as a fine 'tip' then apply that tip to the core to heat it.
If the cores haven't been tampered with, given that IFTs usually consist of a coil and high stability silver mica cap in a parallel tuned circuit, (sometimes a fixed coil but a tunable pre-set cap), I'd need to be very certain that the set has for some reason drifted off tune to such an extent that it's essential, or even desirable to disturb the cores and risk damaging either the cores, the former, or worse still, the coils, given that they're invariably made from fragile litz multi-strand fine wire.
Best of luck with it John.
If the cores haven't been tampered with, given that IFTs usually consist of a coil and high stability silver mica cap in a parallel tuned circuit, (sometimes a fixed coil but a tunable pre-set cap), I'd need to be very certain that the set has for some reason drifted off tune to such an extent that it's essential, or even desirable to disturb the cores and risk damaging either the cores, the former, or worse still, the coils, given that they're invariably made from fragile litz multi-strand fine wire.
Best of luck with it John.
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'
