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
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|