HP 5006A Signature Analyzer
The 5006A front panel: the signature display, the GATE, COMPOSITE SIGNATURE and UNSTABLE lamps, and the FUNCTION and POLARITY key rows below.
and its probes:
The timing pod with its START, STOP, CLOCK and ground leads, and the data probe that goes with it.
Gotten from the Domaine d’Espitalet inheritance
In very good state, just a bit of cleaning needed.
Internals
Pictures
Inside: the 05006-60001 board fills the case, with the mains transformer at the top left and the ribbon to the front panel at the right.
The processor area close up. The purple ceramic module marked 05006-80003 sits in the middle, surrounded by 74F86 and 74F175 logic.
The other half of the board, with the 1826-0630 hybrid in the middle and the front panel switch bank at the right.
Special chips
Mostek MK38P70/02H
This is an OEM microprocessor based on the Fairchild F8. It is quite a strange chip because it has an embedded socket for a (EP)ROM:
What makes the MK38P70 odd: the top of the package is itself a socket, so the program EPROM plugs into the processor.
