[R-390] GR 1001-A Signal Generator retry with details
Pete Lancashire
pete at petelancashire.com
Thu Jan 19 13:47:49 EST 2012
I'll toss in they are a pretty amazing generator, not a HP 8460B but
a good clean sinewave comes out of them. And they look cool :-).
-pete T&M Collector
On Thu, Jan 19, 2012 at 10:36 AM, Bill Hawkins <bill at iaxs.net> wrote:
> Not many replies to the sketchy note I sent last week. Maybe if I
> added some details I could send this classy GR instrument to a new
> home. It can't stay here.
>
> So I took it out, brought it up on a Variac, and monitored the B+.
> No problems and no smoke, all functions working. Put it back in the box
> and tested the dial extremes, all ranges are within the +/- 1% spec.
> The 15 to 50 MHz range has trouble at the low end, but is usable above
> 17 MHz. No other ranges fall off like that. 18 MHz (a dial mark) reads
> 17.9 MHz on the counter, and 50 MHz reads 49.5.
>
> Not sure the Racal-Dana 1992 counter is rated for 50 MHz, but
> there are six zeroes after the leading 1 for 10 MHz from an HP Z3801
> GPS receiver.
>
> Burned it in for 2 hours, mostly within the 0.25% drift spec. It comes
> with a manual with schematic and alignment instructions. The alignment
> tool is still clipped inside the case. I don't have an RF voltmeter, so
> I can't comment on output voltage accuracy.
>
> FWIW, power consumption at 115 VAC line is the rated 65 watts.
>
> There are no obvious scratches on the case or front panel, but there
> is light corrosion of the nickel plating. It should have its face
> washed, but I'd rather the new owner did that. It looks and smells
> brand new inside the case. Pictures on request.
>
> I'm asking $120 for it, but I'm influenced by a good story about why
> you want it. Money isn't everything.
>
> The generator itself is 21 wide, 14 high, 11 inches deep, and weighs
> 54 pounds. I'd be shipping from zip 55438 in Bloomington, Minnesota.
>
> Bill Hawkins
> 952-835-6840
>
> Former owner of an R389, 90, 90-A, 91 and 92. Still have some manuals.
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
More information about the R-390
mailing list