Heathkit EC-1

From: Joe <rigdonj_at_cfl.rr.com>
Date: Fri May 2 19:13:00 2003

At 04:40 PM 5/2/03 -0700, you wrote:
>>From: Joe <rigdonj_at_cfl.rr.com>
>>>>From: "Ethan Dicks" <erd_6502_at_yahoo.com>
>>>>--- "Dwight K. Elvey" <dwightk.elvey_at_amd.com> wrote:
>>>>> Hi
>>>>> An interesting side note. The power steering of your
>>>>> auto is an example of an analog fluid amplifier.
>>>>> Dwight
>>>>I don't think _my_ auto (1968 Beetle) is an example of that. :-)
>> Do you mean that it doesn't have hydraulic brakes? :-) I expect that the
>vacuum advance on the distributor would also qualify.
>> Joe
> Hydraulic brakes don't amplify unless they use a booster.

   Not so. They amplify the force (not the energy).

>It is true that most drum brakes amplify when stopping while
>moving forward.

   True but that's not a fluid system, it's a mechanical system.

> Many cars of this time frame may not have a vacuum advance.

   Many?? I'm not buying it! Show me a stock car of that vintage that doesn't use a vacuum advance. The only ones that I know of that were even close to that vintage that don't have vacuum advances were the '64-'65 Chryslers with the 426 RACE Hemi engine (the later street Hemis did have VA.)

>I know my Fiat Spider doesn't( I think the VW's did though ).

    I've never had a spider but I had other Fiats and MANY VWs and they all had VA. One of the common mods to the VW was to change the stock VA distributor to a mechanical advance only distributor with a faster advance curve. I used that in a couple of VWs but they weren't original.

> Still, most any auto is just full of analog computing elements.

    You're right. Even you're only talking about non-fluid computing elements you can include the numerous levers such as the brake pedal, shifters, parking brake handles, brake cams, rocker arms, trottle pedal lever, trottle lever on the carburator, lots of levers and cams in the carburator, etc etc.


Received on Fri May 02 2003 - 19:13:00 BST

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