using new technology on old machines. Was: PDP-12 Restoration at the RICM

Simon Claessen simski at
Sun Jun 14 14:41:42 CDT 2015

as long as it is done in a way that it can be restored to its original, i have no problems in using newer technology in older machines. we have a alix sbc build into our tek 4002a 
for demonstrational purpouses, all done without damaging or altering the original machine.

On 14-06-15 17:25, tony duell wrote:
>> The ripple on the power supplies is still going lower as we put more run
>> time on the system. The power supplies are now within spec.
> Capacitors reforming naturally?
>> Warren made an Arduino based programmable baud rate generator that works
>> for both serial ports. After some debugging, it works nicely.
> I am sorry, but I find that obscene!. To use more components than the rest of the machine
> (probably) just for the baud rate clock is ridiculous. IMHO if you are going to modify a
> vintage machine, particularly one as rare as a PDP12, you should use the components
> that were available at the time. It's not as if a programmable buad rate generator is hard
> to make from TTL either. In fact given the Arduino thing needed 'some debugging' it might
> well have taken less time to do it in hardware.
> -tony

Met vriendelijke Groet,

Simon Claessen

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