[time-nuts] 5087A Distribution Amplifier

[Brian Kirby]

Your a life saver.  Can you confirm the pass transistor part number and 
the regulator IC, looks like the 723 ?

Dr Bruce Griffiths wrote:
> Brian Kirby wrote:
>> I bought an HP 5087A distribution amplifier off of ebay.  "The unit is 
>> in good working condition".  Funny the power supply is putting out 120 
>> hertz square waves.....which makes all the outputs look like they are 
>> oscillating garbage....disconnecting the power supply from the load 
>> does not change the situation.  I subbed a test power supply and the 
>> amplifiers work fine.
>>
>> Does anybody have the schematic to just the power supply and could I 
>> bother you to scan it and send to me, or a link to get it, or the 
>> manual ?
>>
>> The power supply looks very simple, but the schematic sure makes life 
>> easier !
>>
>> Thanks in advance - Brian N4FMN - kirbybq at bellsouth.net
>>
>>
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>>   
> Brian
> 
> Attached are 2 screen shots of the relevant page.
> 
> Bruce
> 
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