Hello Jerry,
Friday, August 7, 2020
Thanks, I have sent a request to join, much appreciated.
Best regards,
Chris 2E0ILY mailto:chris@chriswilson.tv
JS> Go to the alpha 87 ioGroups there in file section are several
JS> replacements .. arrow electronics had hundreds for about $40 each just
months ago
JS> Jerry NY2KW
JS> Sent from my iPhone
>> On Aug 7, 2020, at 7:27 AM, Chris Wilson <chris@chriswilson.tv> wrote:
>>
>>
>>
>> 07/08/2020 12:07
>>
>> I have an Alpha 86 here with suspected TX / RX switching pin diode
>> failure. The amps TUNE function is suspect, and switching between
>> standby and operate gives a vey attenuated RX signal in standby mode.
>> In TX it seems to operate, TUNE display aside, normally.
>>
>> The manual's schematic shows them as stud mounted UM4001CR devices. I
>> am unable to source these, does anyone know of a current source for
>> them please? Alternatively does anyone have instructions for
>> conversion to using two vac relays? Fast CW is not required, and the
>> noise of the vac relays not really a concern. Thanks.
>>
>> --
>> Best Regards,
>> Chris Wilson.
>> mailto: chris@chriswilson.tv
>>
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