Question about PDP8/a fans

From: Pierre Gebhardt <cheri-post_at_web.de>
Date: Thu Jul 1 04:05:03 2004

Hello all,

Yesterday, I brought my PDP8/a (with core memory) back to life, I got from our institute.
It works, although the fans and the console panel (the plastic part, not the electronics) are missing.

Now, what are the voltages of the fans ? I suppose that they're working with alternating current.
They've to be replaced (somebody apparently "needed" them...).

On the power supply, there is a dead thyristor/SCR in the 5 volt regulator circuit.
As the machine works fine without it, I suppose that its function is to prevent high voltages, am I right ?

So far, thanks alot for any help in advance !

Pierre






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Received on Thu Jul 01 2004 - 04:05:03 BST

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