Vic,
Of course, you’re right. I just looked at the Aromat datasheet and they’re 1
Form C, not 2. So, two would work.and perhaps give you some added isolation
for what you may need on the second contact form?
Paul, W9AC
From: Victor Rosenthal 4X6GP <k2vco.vic@gmail.com>
Sent: Tuesday, December 4, 2018 8:53 AM
To: Paul Christensen <w9ac@arrl.net>; 'Amps reflector' <amps@contesting.com>
Subject: Re: [Amps] Input relay for QSK amp
I've used these in other amps, but they are SPDT. I suppose I could use two of
them.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 04/12/2018 15:35, Paul Christensen wrote:
Vic,
Look at the Aromat/Matsushita RSD-12V. It's a DPDT RF reed relay that's
meant for the job and easily handles 100W. It's also exceptionally quiet
and fast. There are several on eBay. If that doesn't work for you, I can
send you one.
Paul, W9AC
-----Original Message-----
From: Amps <mailto:amps-bounces@contesting.com> <amps-bounces@contesting.com>
On Behalf Of Victor Rosenthal 4X6GP
Sent: Tuesday, December 4, 2018 5:21 AM
To: Amps reflector <mailto:amps@contesting.com> <amps@contesting.com>
Subject: [Amps] Input relay for QSK amp
I'm trying to choose a relay to use as the input relay in a QSK amp.
I have been very satisfied with the Jennings RJ1-A as an output relay.
The input relay in this circuit needs to be DPDT, or I'd just use two
similar vacuum relays.
Here are my needs:
1. DPDT.
2. 12 or 24v coil.
3. Operate/release time, including bounce <= 4 ms. Faster is better.
4. Should carry 100w RF in 50 ohm system. Not expected to make/break live
circuit.
5. Must have low resistance for low-level signals (receive path).
6. Must have long life >= (10 x 10**6 operations) 7. Must not be insanely
expensive, and available from Mouser or RS.
I found this relay:
<https://www.mouser.co.il/datasheet/2/418/NG_SS_108-98005_L-1019204.pdf>
<https://www.mouser.co.il/datasheet/2/418/NG_SS_108-98005_L-1019204.pdf>
But maybe there's a better choice? I'm overwhelmed by the number and
varieties of relays in the catalog.
--
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
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