Missile Command ARII Regulator

[Ghostlyguy]

What are the expected output voltage ranges for the +5 VDC, +12 VDC and - 5 VDC with No Load? I do not want to exceed the Missile Command PCB limits.

 

[andrewb]

5 should be 5.00 (which you can dial in with the pot)

12V should be within +/-0.5V of 12

-5 should be within half a volt as well, however some 7905 regulators will read high with no load. You might see -6, -8, or even higher with no load. (If you want to test with a load, put a 1K resistor from the -5V test point to GND, and it should come to within half a volt of -5V. Else the regulator is bad.)

 

[Ghostlyguy]

5 should be 5.00 (which you can dial in with the pot)

12V should be within +/-0.5V of 12

-5 should be within half a volt as well, however some 7905 regulators will read high with no load. You might see -6, -8, or even higher with no load. (If you want to test with a load, put a 1K resistor from the -5V test point to GND, and it should come to within half a volt of -5V. Else the regulator is bad.)

Cool, thank you. This is what I needed.