[time-nuts] HP 5090A Frequency Standard manual available

GandalfG8 at aol.com GandalfG8 at aol.com
Fri Mar 31 16:03:07 EDT 2017

I've just uploaded a pdf version of the HP 5090A Ops and Service manual to  
Didier's site at.....
For now at least it's also available at....
The 5090A was an HP product designed in the UK in the early  1960s and was 
an off air frequency standard intended for use with the  BBC Droitwich 
broadcast service when it was broadcasting on 200KHz.
If anyone has a copy of the 5090B manual they'd be willing to scan and  
share that would be very much appreciated, the A and B versions of the  5090 
are quite different.

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