This repair job should be interesting and challenging. I used an HP-9100 in college about 1970; it was the first programmable calculator I had ever seen. My HP-5360A Computing Counter is very similar in terms of how you program it.
Jeremy
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On 11/7/2012 12:08 PM, fred wrote:
Tommorow a friend brings in a HP9100A for repair. It is in unknown working condition founded under a floor but optical inside/out in good shape. ( and for me a sinclair multimeter and finaly I get a real HP35)
I have plenty experience in repair ( most meaurement and radio stuff, from vector netork anlysers to digital multimeters, but I'm an analog guy)
But this is a sort of "computer" without the CPU, ICs ect. So very new for me.
It has torroid memory, a sort of multilayer PCB ROM and according to the owner about 300 transistors.
Do some people here have experience and tips/advise with this piece of art. ( and HP history)
Fred pa4tim
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