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Re: L & C measurements cheaply, how?
From: Bert Pool[SMTP:bertpool-at-flash-dot-net]
Sent: Saturday, December 27, 1997 5:18 AM
To: Tesla List
Subject: Re: L & C measurements cheaply, how?
>
>From: Adam[SMTP:absmith-at-tiac-dot-net]
>Sent: Friday, December 26, 1997 6:14 PM
>To: tesla list
>Subject: L & C measurements cheaply, how?
>
>
>I am curious how most of you are measuring L & C's for homemade tesla
>components. I am looking for an inexpensive way. At school I had
DMMs,
>scopes, function generators, FFT analyzers, the works, ... but now that
I
>have graduated and gone home, and it is painfully obvious that I lack
>even the basic tools. I don't even have a digital voltmeter. I went
>looking through the catalogs I have here, and found only one
inexpensive
>DMM that has inductance measurements: the wavetek 27XT. This unit
seems
>to be able to handle the ranges necessary for Tesla coil parts, is
>anybody using this for measuring homemade components?
>
>I have tried using my cheap rat-shack analog voltmeter and 120VAC 60Hz
to
>measure my cap & choke values, but the voltmeter impedance is way too
>low, and it's highly parasitic. Plus, it doesn't even zero properly.
>Someday, I'll save up for a scope & func. generator, but now I just
need
>something cheap and convenient.
>
>Thanks,
>
>-Adam
>
>-----------------------------------------------------------------------
---
>Adam Smith
Adam, check out Alfa Electronics - they carry an excellent set of very
inexpensive meters. Their DMM-20 measures AC, DC voltage to 750 volts,
resistance to 2 gigohms, current to 20- amps, CAPACITANCE and
INDUCTANCE, frequency from 1 hZ to 15 mhZ, has a built-in transistor
and diode test, continuity beeper, and overvoltage protection on the AC
and DC ranges. Sells for only $74.95! Order number is 1-800-526-2532.
I have bought two of these for friends, and I bought an LCR meter from
them for the same price. Delivery was fast, and everything has worked.
Bert Pool
bertpool-at-flash-dot-net