Ditto. 1N5711 = $0.50 each from Mouser, stk no 511-1N5711.
The same thread was started on the world's largest ham forum...
Bryan WA7PRC
Date: Thu, 13 Nov 2014 08:34:01 -0500
>From: Carl KM1H
>To: John DiLorenzo , Amps
>Subject: Re: [Amps] AL80B power meter not working
>
>The 1N914 is not a Schottky, just your basic silicon signal diode, sort of
>the 1N4148 grandfather.
>If you want Schottky try the 1N5711.
>
>Carl
>KM1H
>
>----- Original Message -----
>From: K8DIL/AE
>To: Amps
>Sent: Wednesday, November 12, 2014 8:19 PM
>Subject: Re: [Amps] AL80B power meter not working
>
>
>> Well, as something easy to try, I replaced the two detection diodes on the
>> power supply board. I didn't have the germanium 1N34s, so I used some
>> 1N914 schottky diodes that I had, just to verify if this was the issue.
>> And now both forward and reflected meter indications seem to be working
>> fine. In standby, with 100 W from my radio, the meter indicates 0.1 kW.
>> So, these diodes seem to be working well in this circuit. In CW mode, I
>> can tune to an indicated 800W into a dummy load at 14.250 with about 70W
>> of
>> drive. I did order some 1N34As off of ebay, and I'll replace the schottky
>> diodes when these come in. But for now, I'm a happy camper.
>>
>> Thanks, and 73.
>>
>> John, K8DIL/AE
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