[Amps] RJ1H

[R.Measures]

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 at juno.com>
>> To: <wc1x at 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)
>>>
>
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>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org