This is the connection from the H704 power supply (147K) to the PDP-8/I logic. The card with the black heat sink is the G805 negative regulator which with the G826 regulator control generates the core memory voltage. The core voltage is normally about -22.5 volts and is varied with the core memory temperature to keep the core operating at the proper current.
Feel free to contact me, David Gesswein djg@pdp8online.com
with any questions, comments on the web site, or if you have related equipment,
documentation, software etc. you are willing to part with. I am
interested in anything PDP-8
related, computers, peripherals used with them, DEC or third party, or
documentation.
