Hardware Hobbyists vs. Emulator Jockeys
ard at p850ug1.demon.co.uk
Thu Jun 18 12:58:31 CDT 2009
> On Jun 17, 2009, at 4:40 PM, Tony Duell wrote:
> > But I don't lioke changing the classic machine. Not even replacing
> > PSUs
> > with switchers. The original PSU is part of the design, and I want to
> > keep it that way.
> While I agree with you here, I have to admit that, if my PDP-11/70
> had switching power supplies, I'd probably run it a lot more often.
Whatever have you done to it? AFAIK the 11/70 has switching regulators as
standard (my 11/45 certainly does). Not the normal design of SMPSU (in
that there's a big mains-frequency trasnformer on the input), but it's a
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