Yes - it has base-pins just like a vacuum tube.
The metal cap is on the top of the recifier metal case.
Unit is about 3.5 inch tall.
I would think my two replace a HV tube since it rectified for 2 x 813's.
I did contact Semtech, the reply said nothing of help.
Have not had the chance to check any wiring and have no schematic.
Regards,
Steve
WA2TAK
Steve Katz <stevek@jmr.com> wrote:
>
>
>> Hi all:
>>
>> Got my 813 parts rig.
>> The PS has two " Semtech SA 7477 " rectifiers.
>> Black metal tube with pix of diode on it...top metal cap.
>>
>> Might anyone have data on it?
>>
>> //"SA" means "special assembly," and it's an arbitrary number issued in
>> sequence; so, SA7477 is #7477 in a long line of special assemblies. ?There
>> is no published data for special assemblies, since they are manufactured
>> to order for OEMs.
>>
>> How to check them?
>>
>> Should I use them ...or replace with something else?
>>
>> //Based on your description, sounds like a rectifier tube replacement.
>> Does it have a tube base (pins) on one end, and an anode cap on the other?
>> If so, it's a tube replacement. ?Normally these silicon rectifier
>> replacements don't go bad (or at least not with "age"), so unless there
>> was a fault down line (like a short circuit), they're probably okay.
>> -WB2WIK/6
>>
>> Tnx,
>> Steve
>> WA2TAK
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>
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