[Amps] Tl 922 mods

[Don Kessler]

Please consider this as well:
http://kesslerengineeringllc.com/tl922.html

73,
Don

On 10/28/2015 06:16 PM, Alek Petkovic wrote:
> Also see:
>
> http://somis.org/
> There's a wealth of good stuff on the TL-922 there.
>
>  http://www.pa0fri.com/
> Click on Mods and then Kenwood TL-911 modifications. It actually 
> describes the TL-922.
>
> 73, Alek
> VK6APK
> *
> *
> On 29/10/2015 5:30 AM, Vic Rosenthal 4X6GP/K2VCO wrote:
>> W8ZR designed a sequencer board sold by Harbach which will protect 
>> your relays, amplifier and transceiver. See 
>> <http://w8zr.net/QSK/index.htm>. This is the best way. Whatever you 
>> do, you should read his QST article that is linked there.
>>
>> If you know that your transceivers provide enough time after 
>> asserting key out and before producing RF, as well as a reasonable 
>> delay after RF stops and before key out goes back to the receive 
>> state, then you can just use a pair of vacuum relays or a vacuum 
>> relay and a reed relay to replace the open frame relay in the TL922. 
>> Exactly how you do this will depend on the coil voltage requirements 
>> of the relays that you use.
>>
>> 73,
>> Vic, 4X6GP/K2VCO
>> Rehovot, Israel
>> http://www.qsl.net/k2vco/
>>
>>
>> On 28 Oct 2015 23:04, Arnie Pfingst wrote:
>>> I have a tl 922a with 10m amp driven by a Kenwood ts 940 or Yaesu ft
>>> 950 . It all works great except for the slow change over relay in the
>>> amp. Im using the arb 704 interface for keying. I need a good mod for
>>> the slow relay! After all this time I'm going to order the Harbach
>>> soft start, and filter kit and will adjust the FIL voltage as needed.
>>> Does anybody have any other ideas?ThanksArnie. Kd6cz
>>>
>>> Sent via the Samsung Galaxy S®6 active, an AT&T 4G LTE smartphone
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>