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Re: [Amps] TE SYSTEMS 1412G

To: W7RY <>
Subject: Re: [Amps] TE SYSTEMS 1412G
From: ian swain <>
Date: Mon, 03 Mar 2008 15:54:08 +1300
List-post: <">>
Hi Jim

It's not a repeater amp.

When the amp in line it acts more of an attenuator for the receiver.

There is a "Guardian Electric 1365 series" relay used for TX/RX switching.

With a multi meter i get 16.5 ohms across the relay n/c contacts doing an in
circuit test.

I shell look on the net for a suppler  of the relays  any ideas ?

I have not found a circuit diagram anywhere for this amp either...

Ian de  ZL2IAS

W7RY wrote:
> Are you sure it has a T/R relay inside of it? Perhaps it's a repeater 
> amplifier with no T/R switching. If it does indeed have a relay, the 
> relay must be defective. Does the receiver work when the amplifier is 
> in line and not transmitting?
> 73
> Jim W7RY
>     ----- Original Message -----
>     *From:* ian swain <>
>     *To:* <>
>     *Sent:* Saturday, March 01, 2008 1:30 PM
>     *Subject:* [Amps] TE SYSTEMS 1412G
>     Hi guys
>     I have a TE SYSTEMS 1412G that has a problem where with the amp in
>     circuit
>     and turned off  ie by passed there is a high SWR and almost  no power
>     out the other side.
>     When the amp is turned on in operate mode it works fine low RF input
>     good swr
>     and high RF output.
>     I opened it up is find what looks like a sealed relay thinking bad
>     or dirty
>     relay contacts.
>     Has anyone had this issue ? I have looked on the web for TE SYSTEMS
>     with no luck.   As I need a manual as well and circuit diagram.
>     Any advice is welcome.
>     Regards
>     Ian de ZL2IAS
>     _______________________________________________
>     Amps mailing list
> <>
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