I have an HP 5056A Rb standard that I need to find a new home for. Part of a major clear out to try & find a bench top to actually work on. I also have the matching distribution amplifier for sale
Serial # 2432A01386
Test readings as follows (recorded readings in 1988)
SUPPLY 39 (40)
LAMP OVEN 24 (24)
CELL OVEN 25 (25)
OSC. OVEN 39 (37)
PHOTO 1 31 (41)
5 MHz 18 (22)
CONTROL +/- 50 (+50)
ERROR +/- 50 (0)
2nd HARM. >50 (26)
1 MHz 40 (26)
100KHz 40 (40)
Integrator lamp flashing. Coarse oscillator control (fibreglass rod) seems broken at 10811 end.
Clock stopped updating after ~ 54 mins. The mains connector is not the original HP.
I am open to offers as the value of these seems to vary wildly according to serial # & condition. Happy to try & answer any questions. If anyone is willing to travel to look at it, they are most welcome.
Phil