For Sale HP-97 Test-Bench

[aurelio]

(04-29-2014 08:58 AM)ignazio Wrote:  

(04-28-2014 07:51 PM)walter b Wrote:  Please forgive me, but what's the difference to a usual HP-97 calculator? Why do you call it a 'HP-97 Test-Bench'? TIA for enlightenment.

Thanks for the reply posted by Thomas and Sylvain.
Walter,
the only valid reason to install the sockets for all the chip in a calculator, is to permit at the owner to test all the component without stress the PCB and the chip with too much heat from the solder iron, but primarily is to test the components on a machine certainly functional.

In this HP-97, you can test:

ACT (1820-1596) from: HP 21,22,25,25C 29C,19C,67,91,92,95C,97 AND 97S;
ACT (1820-1952) from: HP 19C, 97,97S;
CRC (1820-1751) from: HP 67, 97,97S;
PIK (1820-1680) from: HP 19C, 97,97S;
CATHODE DRIVER (1820-1629) from: HP 19C, 91, 92, 95C, 97 and 97S;
RAM/ROM (1818-0226, 1818-0228, 1818-0550,1818-0551) from HP 67,97,97S;
MOTOR SPEED CNTRL (1810-0236) from: HP 10A,19C,91,92,95C,97 and 97S.
SENSE AMPL. (1826-0322) from: HP 67, 97, 97S and HP-82104A (HP-41 CR)

I believe that may be useful, or not?

Regards

Ignazio

We apreciated your job no far in time here and I renew my compliments for brilliant idea