Re: Dip Meter TC Tuner

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steve Cook by way of Terry Fritz <teslalist-at-qwest-dot-net>" <steve-at-g8cyerichmond.freeserve.co.uk>

Try a ham radio fleamarket or a car boot sale. You can often find old radio
receivers that contain suitable capacitors, the large air-spaced ones are
the best for stability etc. Even tho the receiver may well not work, the
tuning capacitor almost certainly will, the most it will likely need is a
clean with a suitable switch cleaning solvent.
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, January 04, 2003 4:13 PM
Subject: Re: Dip Meter TC Tuner


 > Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<jimlux-at-earthlink-dot-net>
 >
 > You can still get the 365 pF variable capacitors somewhere.  I just bought
a
 > cheap radio and it has one in it.  The hangup might be that minimum order
 > quantities are huge.
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Friday, January 03, 2003 10:19 PM
 > Subject: Re: Dip Meter TC Tuner
 >
 >
 >  > Original poster: "Matthew Smith by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <matt-at-kbc-dot-net.au>
 >  >
 >  > Hi Steve/All
 >  >
 >  > >Might have to cannibalize one out of a cheap AM radio.  If you know of
 >  > >sources, please post it or email me directly - they are becoming
scarce
 >  > >items.
 >  >
 >  > Can't speak for anywhere but Australia, but I have seen ex-military
 >  > variable caps on Yahoo auctions over here.  But you're right, neither
 >  > Farnell nor RS have them listed (I haven't tracked down a Digikey
 > Australia
 >  > yet).
 >  >
 >  > Old wireless sets should be plentiful in junk shops, so that may be the
 > answer.
 >  >
 >  > This does raise the question: how do people build radios now if you
can't
 >  > get variable capacitors? (Apart from trimmers.)  I'm sure that they
don't
 >  > use variable inductors and I didn't think that RC oscillators were
 > suitable
 >  > for high frequencies; forgive me for being out of date...
 >  >
 >  > Cheers
 >  >
 >  > M
 >  >
 >  > --
 >  > Matthew Smith            | Business: http://www.kbc-dot-net.au
 >  > IT Consultant            | PGP Key:  http://gpg.mss.cx
 >  > Kadina, South Australia  | * Tivis Project * Community Connect *
 >  >
 >  >
 >  >
 >  >
 >  >
 >
 >
 >