[Premium-Rx] R&S EK070 defect: help wanted

[Glenn Little WB4UIV]

PIC637 is a standard part.

The datasheet was in the first few finds from Google.
It consists of two NPN transistors as a darlington, a diode and two 
resistors.
It is rated for -100 Volts in and 15A dissipation.


Glenn


On 12/11/2018 1:46 AM, C. van Ravenswaaij wrote:
> Thank you, Bob, Michael and Dan, for your help.
> It looks like this is going to be a difficult search and costly repair!
>
> 73, Cornel
>
> Op 10-12-2018 om 16:02 schreef C. van Ravenswaaij:
>> Hi all,
>>
>> My R&S EK 070 stopped working after a clear collapse of the power 
>> supply. This receiver has the Mains/Battery Power Supply Unit N3.
>> On the control board a four legged transistor (?) type PIC637 is 
>> defect, referred to as T22 and T23 on schematic 629.9018 
>> AC/DC-Netzteil (Power Supply)
>> I do have the schematic and the fault finding procedures, but do not 
>> have the parts list.
>>
>> Does anyone have the corresponding Sachnummer (parts number) of this 
>> PIC637?
>> Does anyone have this PIC637 for sale?
>> Does anyone have specifications on this PIC637 and/or a replacement 
>> type number?
>> Does anyone have a N3 or N1 power supply for sale?
>>
>> Thanks in advance for your help.
>>
>> 73, Cornel
>> PA3BTS
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>
>
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-- 
-----------------------------------------------------------------------
Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"