Having just killed a Kilovac HC-1 (equivalent to the RJ-1A) in my modified
SB-220 due to hot switching, I am interested in whether the RJ-1H might
prove more resistant to operator errors.
73, Pete N4ZR
At 05:57 AM 3/16/2005, R.Measures wrote:
>On Mar 15, 2005, at 6:50 PM, Marc Chicoine wrote:
>
> >
> >
> >
> > Hal,
> >
> > Thanks for the guidance for the proper use of "sans".
> >
> > Further to my original question:
> >
> > RJ1H relays have tungsten contacts used primarily
> > in hot switching applications. The contact resistance
> > is 30 mOhms and the current rating falls off much above
> > 2.5 Mhz. Switching time is a scant 6 ms.
> > I can obtain new ones for relatively low price.
> > Are they suitable for Amateur Radio use at full legal power levels?
>
>For SSB and CW, yes. However, for RTTY or AØ at 28MHz @ 1500w,
>probably not.
> >
> >
> > Marc
> >
> >
> >> ----- Original Message -----
> >> From: "Harold B. Mandel" <ka1xo@juno.com>
> >> To: <wc1x@btinternet.com>
> >> Sent: Wednesday, March 16, 2005 00:43
> >> Subject: Re: [Amps] RJ1H
> >>
> >>
> >>> Dear Marc,
> >>>
> >>> Jennings RJ-1H?
> >>>
> >>> I know the generic RJ-1 series is good for one (1) ampere,
> >>> reliably, at 28 MHz., (32MHz., as Jennings puts it), and maybe
> >>> three (3) amperes at 1.9MHz., but the "H" stumps me.
> >>>
> >>> I have RJ-1A's and RF-1's, RJ-2's, 3's, even 2B's and an odd 10,
> >>> but the H factor needs explaining.
> >>>
> >>> If you want to put a vacuum set of relays in the '220, an RF-1E,
> >>> (SPDT),
> >>> is great for the input and a 1A would do great on the output, if that
> >>> answers your question. (Why did you use the word "sans?" That means
> >>> "without." Did you mean to say "dans," or "within?")
> >>>
> >>> Hal Mandel
> >>> W4HBM
> >>>> Are Jennings RJ1H relays suitable for R.F. applications? (sans
> >>>> SB-220)
> >>>
> >
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
> >
>
>Richard L. Measures, AG6K, 805.386.3734. www.somis.org
>
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