My6502 Progress

From: John Wilson <wilson_at_dbit.dbit.com>
Date: Thu Feb 10 16:02:12 2000

On Thu, Feb 10, 2000 at 11:34:08AM -0800, Chuck McManis wrote:
> The worst thing about the Super Elf was that it used three of four diodes
> in series with the transformer in an attempt to drop the voltage enough
> that the 7805 wouldn't overheat trying to drop 12V and drive 500mA.

IIRC you're supposed to jumper some variable number of the diodes, depending
on how much load there is (I think depending on whether you had installed
the extra 9368s/FND503s (?) for the address display option). REALLY cheesy!
And the 1802 ran at nowhere near its full speed, because evidently that's
not possible with only a 5V supply.

John Wilson
D Bit
Received on Thu Feb 10 2000 - 16:02:12 GMT