You might also examine the original choke carefully and see if you can
locate the break. It's most likely to be at an end, or where the choke
has been scuffed on the outside of one of the pies. If it's at either of
these spots, you can repair it with some small wire, a steady hand, and
a good magnifier. (If it's on the outside of a pie, you'll have to
unwind a turn or two.) An X-Acto knife with a pointy blade is a good
tool for getting an outside turn loose without doing too much damage to
the turns underneath.

Roy Lewallen, W7EL

W7TI wrote:
On Fri, 4 Jul 2003 19:00:27 -0500, TH wrote:


I had an old regenerative set that was in pretty bad shape so I'm using the
parts to build a FET regen set. I just found out the old 2.5 mh choke is
open. I know I can purchase these mail order, but I'd like to get this
project completed this weekend. Looking through my boxes of old parts, I
found an old peaking coil for a tube type TV. The coil is adjustable from
.2 to 2.8 mh, at 7 ohms DC resistance. I don't see why this wouldn't work,
but thought I'd ask anyway. Will this coil be okay to use??

Thanks


__________________________________________________ ______________

Is this a coil only, or does it have a paralleled resistor? In TV jargon,
a "peaking" coil is used in the video circuits to achieve the desired
bandwidth and almost always has a built-in resistor in parallel. If yours
is just a simple adjustable coil with no resistor, should be ok.

73, Bill W7TI