simple analog fuel injection comments from CSH, HQ

[goflo at pacbell.net]

> > Some outfit is advertising NOS 12AX7's for $2 apiece, box of 100,
> > in Nuts & Volts. That'll do for signal processing, but you're
> > gonna need something with some grunt for the injector drivers...
> > Wonder if 807's still exist. Two 6L6's per injector minimum my guess,
> > plus a 1/2 shoebox-size matching transformer. Per injector. And then
> > there's the power supply.
> 
> actually, you would probably want to use a 2D21 for the injector driver.
>Robert W. Hughes (Bob)

Quite right. Thanks for the jog - I've never actually designed 
anything using tubes. Built some ham gear out of the ARRL Handbook
in the late '50's, and did tv & audio repair a bit later. Fun stuff.
2D21 is a thyratron, right? 
Anyway, I am vaguely aware that Bendix pioneered EFI - Did'nt realize 
it was vacuum tube technology. I'm going to poke around a bit for
details. If you could point at any pertinent links I'd be interested.

Jack