[time-nuts] HP 5370B vs SR620

[Magnus Danielson]

Jim Palfreyman skrev:
> No I haven't. What does this mod do?

Disabling the 10 MHz presence detector that spews out wideband 5 MHz and 
lots of overtone noise on among other things the 10 MHz output.

I did a very simple short which brings one of the transistors out of 
bias and thus disabling the detector. All the detector does is to lit a 
LED for you when you have the hood open to do maintainence, so it is 
fairly safe to do it.

Cheers,
Magnus

> 2009/5/20 Magnus Danielson <magnus at rubidium.dyndns.org>
> 
>> Jim Palfreyman skrev:
>>
>>> I have a 5370B and love it.
>>>
>>> It's big, and postage to Australia was as much as the unit itself, but
>>> what
>>> it can do - especially given its vintage - makes it a perfect unit for my
>>> rack!
>>>
>>> And the manual (plus people here) make it really great if there are ever
>>> any
>>> problems.
>>>
>>> Don't underestimate the 5370B!
>>>
>> Have you moded your A8 assembly like I did?
>>
>> Cheers,
>> Magnus
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.