[hackspacebristol] Massive HP 6268B laboratory power supply up for grabs: it needs fixing
office at ejedv.at
Sun Nov 1 11:09:47 UTC 2015
Thank you very much Marcus!
Was too busy the last days and away since Thursday.
Von meinem iPhone gesendet
> Am 29.10.2015 um 23:07 schrieb Marcus Valentine <marcus at marcusv.org>:
> Hi Joe
> The power supply is at now the hackspace, on the left hand end of the
> work bench.
>> On 26/10/2015 16:33, Marcus Valentine wrote:
>> I have an HP 6268B laboratory power supply, (0 to 40V, 0 to 30A, in a 3U
>> rack mount case) which I used for many years.
>> The manual, containing schematics, parts list and component layouts is here:
>> In Section 3-32, the manual states
>> "When using remote voltage sensing, it is possible to damage the supply
>> by disconnecting a load while the sensing lead is still connected ..."
>> Foolishly, this is exactly what I have done.
>> Despite by best efforts and the comprehensive documentation in the
>> manual, I haven't managed the locate the fault (R107 and R109 seem fine,
>> as do other components I have investigated).
>> I am now admitting defeat, and offering this power supply to anyone who
>> fancies having a crack at getting it going again.
>> When working, it's ideal for powering your latest doomsday machine project.
>> Collection from BS7 preferred.
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