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Re: Latching Relays

Tom GM8MJV
 

Thanks all

I never though of using a small relay to generate the voltage for each side.

Cool - only issue I could think of if yet another delay to take into account but that is minor.

Thanks for the feedback all

Tom

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73

Tom
GM8MJV (IO85)





On 11 Jul 2020, at 09:32, militaryoperator via groups.io <Military1944@...> wrote:

Just fitted latching ae relay in my 9Cm. 

PTT goes to small 12v DPDT relay, center to pos, then normally closed contact to rx side of ae relay, and the normally open to tx side. Seems to work ok, 2 components, relay and diode of course, no semiconductors, bish bash bosh. 

Ben

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Military Wireless Museum
Kidderminster, UK.

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-----Original Message-----
From: Tom GM8MJV <tom@...>
To: UKMicrowaves@groups.io <UKMicrowaves@groups.io>
Sent: Sat, 11 Jul 2020 3:54
Subject: [UKMicrowaves] Latching Relays

Anyone have a solution to a latching Relay board - just want to feed in PTT and let it worry about switching.

I know G4HUP used to do one but they are no longer available. The W6PQL one does work really well and I have used in past but at $20.00 + possible duty it can mount up.

Are there any other boards out there that work as well?

Thanks

Tom

--
73

Tom
GM8MJV (IO85)
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