Re: Test equipment

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

Original poster: "Crow Leader by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla-at-lists.symmetric-dot-net>

Quite a few "audio generators" go into the high kHz or even MHz range.

KEN

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, December 14, 2002 2:40 PM
Subject: Re: Test equipment


 > Original poster: "Scott Hanson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<huil888-at-surfside-dot-net>
 >
 > John -
 >
 > Of course, an "audio signal generator" won't do you any good for Tesla
coil
 > use. You need an RF signal generator, most of which have enough range to
 > cover the audio frequencies.
 >
 > Typical Tesla coil operating frequencies are as low as 60 kHz for very
large
 > coils, to around a megahertz for very small coils. You'll want a generator
 > that covers this range.
 >
 > There are many test oscillators and function generators from many
different
 > manufacturers available on the surplus market.The Hewlett Packard 651
series
 > test oscillators are excellent for Tesla coil tuning work, and can
 > frequently be found surplus or on eBay for very reasonable prices. This is
 > an older series solid-state oscillator, but the large tuning dial is much
 > easier to use than later, smaller H-P units like the 3312A series function
 > generators.
 >
 > Although an LCR meter is nice to have, an oscilloscope is much more useful
 > for Tesla coil tuning. Without a 'scope, the RF oscillator alone isn't of
 > much use. I'd suggest looking for a nice clean used 100 MHz scope to
 > complement your signal generator.
 >
 > Scott Hanson
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Saturday, December 14, 2002 8:49 AM
 > Subject: Test equipment
 >
 >
 >  > Original poster: "John Richardson by way of Terry Fritz
 > <twftesla-at-qwest-dot-net>" <jprich-at-up-dot-net>
 >  >
 >  > Hi Everyone,
 >  >
 >  > I am looking for a few items for the "Basement Lab", and figured I
would
 >  > try here.  First, I am looking for an older audio signal generator,
 >  > preferably an old tuber HP, since everyone I have talked to says this
is
 >  > the best to use for secondary testing.  I also lost an e-Bay bid on a
60's
 >  > vintage ESI 250 LCR bridge, the type with the "magic eye", and am
looking
 >  > for similar or same.  If anyone happens to have one or both of these
 > items,
 >  > please contact me off list, or if you know of someone who does have,
 > please
 >  > let me know.
 >  >
 >  > Thanks,
 >  >
 >  > John Richardson
 >  > <mailto:jprich-at-up-dot-net>jprich-at-up-dot-net
 >  >
 >  > BTW-Franceformer 4/20 on e-Bay for you mini-coil competitors.
 >  >
 >  >
 >  > ---
 >  > [This E-mail scanned for viruses by SURFSIDE INTERNET]
 >  >
 >  >
 >
 > ---
 > [This E-mail scanned for viruses by SURFSIDE INTERNET]
 >
 >
 >