Re: [IRCA] R-390A for sale

["Bob Young" <youngbob53@xxxxxxx>]

Dennis,

Incidently (don't have my manual in front of me) a R-390A draws 220 watts 
max with the ovens on, which of course aren't needed unless you are in an 
Igloo in the North Pole, with them off it draws somewhere around 120-150 
watts. About the same as a couple of 75 watt light bulbs, they won't twirl 
your meter too much, I run mine (plural) on regular house current with no 
problems although Charles's idea is a good one.

Bob Young
Millbury, ma
KB1OKL


>From: Charles A Taylor <MWDXer@xxxxxxx>
>Reply-To: Mailing list for the International Radio Club of 
>America<irca@xxxxxxxxxxxxxxxx>
>To: <irca@xxxxxxxxxxxxxxxx>, <ABDX@xxxxxxxxxxxxxxx>
>Subject: [IRCA] R-390A for sale
>Date: Sun, 18 Mar 2007 11:29:21 -0400
>
>At 03:31 AM 3/18/2007 +0000, you wrote:
> >How long does it take to tune a R-390 from 530-1700 kcs?  Hope to buy one
> >some day.
> >
> >Dennis,
> >Vancouver, WA
>
>Dennis,
>
>Don't quite know what you're asking here. If you're bandscanning, it'll
>take a while
>because you have to tune from 500 to 1000 kHz, then reset the MEGACYCLE
>CHANGE to show "01" on the counter dial, and run the KILOCYCLE CHANGE
>back down to show "000" on the counter dial, and start tuning back up 
>toward
>"01700."
>
>To go directly from 500 kHz to 1700 kHz is a matter of seconds.
>
>You'll soon get "R-390A wrist." Like carpal tunnel syndrome, only worse. 
>Hi.
>=====================================================
> >"Does one need 3 phase power to operate an R 390?"
>
> > > Yes, and your town's lights will all dim down when you turn it on.
> > >
> > > Actually, it draws something like 300 watts at 120 VAC. And it
> > > does produce some heat. Single phase.
> > >
> > > I run mine at 100 VAC (via an autotransformer) to lengthen the life
> > > of the components (especially tubes). This also makes it run much 
>cooler.
> > > The set suffers no loss in sensitivity
> > >
> > > I don't turn it on from a cold start. Instead , I "ramp" the
> > autotransformer
> > > up to 60 VAC for about 15 sec., then 90 VAC for 15 sec., then 100 VAC
> > >
> > > I haven't retubed it in 15 years, except for one of the 26Z5 B+ 
>rectifiers
> > >
> > > More questions?
> > >
> > > ===================================================
>
>73,
>
>Charles
>
>
>         -----
>Charles A Taylor, WD4INP
>Greenville, North Carolina
>
>
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