[Amps] AL-1200 T/R problem

[Karel]

Fern,
good point, it might work if the contact damage is not bad, but if they are 
badly pitted, very smooth contact file may be needed. Just go easy on the 
silver plating. Ler us know if it worked.
Karel, VA3KO

----- Original Message ----- 
From: "Fern" <crc at cyberlink.bc.ca>
To: "Karel" <kebenstr at bmts.com>; "Ken Asmus" <ken.asmus at gmail.com>; 
<amps at contesting.com>
Sent: Friday, January 31, 2014 9:49 AM
Subject: Re: [Amps] AL-1200 T/R problem


> My boss used to say "use a $50 bill to burnish the contacts"   Fern
>
> ----- Original Message ----- 
> From: "Karel" <kebenstr at bmts.com>
> To: "Ken Asmus" <ken.asmus at gmail.com>; <amps at contesting.com>
> Sent: Friday, January 31, 2014 6:44 AM
> Subject: Re: [Amps] AL-1200 T/R problem
>
>
>> Hi Ken,
>> just of the top of my head and I am sure there may be many other reasons,
>>
>> I would first look at the relay and tried to clean the contacts. There 
>> are contact cleaning files, but perhaps contact cleaner spray might be 
>> tried first.
>> 73 and good luck,
>> Karel, VA3KO
>>
>> ----- Original Message ----- 
>> From: "Ken Asmus" <ken.asmus at gmail.com>
>> To: <amps at contesting.com>
>> Sent: Friday, January 31, 2014 8:37 AM
>> Subject: [Amps] AL-1200 T/R problem
>>
>>
>>> My AL-1200 has developed a T/R switching issue. In about 5 out of 10
>>> transmissions the receive does not fully come back after releasing the 
>>> PTT,
>>> A click of the mike button or a dot on the paddle brings the receive 
>>> back.
>>>
>>> Any suggestions where to strat lookiong to clear this problem?
>>>
>>> Thanks and 73,
>>> Ken VA3KA
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>>> http://lists.contesting.com/mailman/listinfo/amps
>>
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>