PDP-11 with ATX power supply
alexandre.tabajara at gmail.com
Sun Mar 8 07:38:51 CDT 2015
60 hz? Little wall wart transformer with 1 diode feeding a 7805. Done.
enviado do meu telemovel
Em 08/03/2015 06:57, "Joseph Lenox" <lenox.joseph at gmail.com> escreveu:
> Well, you could make some clock-generation hw and run it off the 5V
> standby on ATX. Seems straightforward-enough.
> On 03/07/2015 09:38 PM, Earl Evans wrote:
>> Hello fellow DEC enthusiasts,
>> I have a BA11-N mounting box with Q18 9-slot quad-height backplane. The
>> power supply is toast. My goal is to hack it into something useful.
>> I'd like to replace the power supply with a sufficiently-powered ATX PSU.
>> I've read the instructions at:
>> However, unlike the DEC PSU, the ATX power supply won't supply a 60 Hz
>> time clock (LTC) signal to the backplane via BEVENT. So, my question - has
>> anyone used a standard ATX PSU for a PDP-11 QBUS system, and if so, how'd
>> you work around the LTC issue?
>> Once I solve the power issue, I have 11/23 CPU cards, RAM, and SLUs
>> I'm not planning to make this very power hungry though.
>> - Earl
> --Joseph Lenox, BS, MS
> I'm an engineer. I solve problems.
More information about the cctech