01-06-2012, 09:13 AM
Thanks for the helpful advice and encouragement guys.
I do have a 7pF cap, so that isn't a problem.
As to the 'Noble' set Joe, that has quite different much larger air-spaced coils, but I guess that the relationship of the turns will be similar, if not the actual resistances, as of course it's the inductance that matters - not the resistance of the windings, and a slug-tuned coil will probably have lower resistances due to the inducatance introduced by the slugs, but I won't know till I've checked. At least the Noble hasn't been got at, so I'm hoping that a new dropper and changing the waxies might be all that's needed, plus a back panel. It uses all octal valves (12K7, 12J7, 35L6, 35Z4), which all test like new.
I'll have a little furtle around with the coil later on today. At least the windings aren't open circuit - just torn from their moorings.
I do have a 7pF cap, so that isn't a problem.
As to the 'Noble' set Joe, that has quite different much larger air-spaced coils, but I guess that the relationship of the turns will be similar, if not the actual resistances, as of course it's the inductance that matters - not the resistance of the windings, and a slug-tuned coil will probably have lower resistances due to the inducatance introduced by the slugs, but I won't know till I've checked. At least the Noble hasn't been got at, so I'm hoping that a new dropper and changing the waxies might be all that's needed, plus a back panel. It uses all octal valves (12K7, 12J7, 35L6, 35Z4), which all test like new.
I'll have a little furtle around with the coil later on today. At least the windings aren't open circuit - just torn from their moorings.
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'
