simple analog fuel injection comments from CSH, HQ

H. J. Zivnak bztruck at email.msn.com
Thu Jun 25 00:29:29 GMT 1998


-----Original Message-----
From: goflo at pacbell.net <goflo at pacbell.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Wednesday, June 24, 1998 1:29 AM
Subject: Re: simple analog fuel injection comments from CSH, HQ


>Sandy wrote:
>>
>> The Bendix EFI relates to their early attempt at a Tube (as in Vacuum)
>> implementation that someone described a while back. Now that might be
>> something really interesting! Read Funny ;-)
>
>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.
>
>The mind boggles.
>
>Jack
>
>
I think I've got a box of 12AU7s that I ran in an Ampex R-R tape deck until
they went microphonic. (Never throw anything away) These could do the signal
processing and give the value-added benefit of knock detection! Kind of a
vacuum tube ION.

Joe






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