[R-390] test equipment question
Roger Gibboni
rgibboni at dulye.com
Fri Feb 13 06:40:37 EST 2009
The only thing I would add to the list is a 100MHz scope. A Tektronix 465 is
a great scope that you can get for a few hundred dollars. This will be
invaluable in troubleshooting and will do the job of the RF VTVM as
well---Roger WA3YTM
On Fri, Feb 13, 2009 at 3:28 AM, Steve Toth <stoth47 at yahoo.com> wrote:
> Some questions for the veteran radio techs - I'm organizing to start work
> on a couple of R-390A's I just acquired. What test equipment do I *need*(as opposed to "would like to have") to get these babies running??
>
> What I have now:
>
> TV-7/U tube checker and spare tubes
> AN/URM-25D signal Generator
> Heathkit VTVM
> Digital VOM
> Digital Dial / Direct Freq Meter good to 50Mhz
>
> Looking at the Y2K manual, pg. 1-12 and looking thru the stage-by-stage
> troubleshooting steps in Section 5, three other items are mentioned:
>
> 1.) RF Multimeter - can I use an adapter with the VTVM or VOM? How?
> 2.) Audio Oscillator that covers 425-3500hz @ 100mv
> 3.) Oscilloscope that can cover .2 to 2vdc/cm
>
> If I do need'em what inexpensive models should I look for at ham flea
> markets (got a big one coming up in the Northwest), places like Fair
> Radio, on Craigslist and (last preference)Epay?
>
> Thanks.
>
> -- Steve
> Woodinville, WA
> *If you can read this, thank a teacher; if you're reading this in English,
> thank a military veteran.*
>
>
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