So the motor current returned/was fed through the bridge, where it
could be controlled via a transistor? That's pretty clever! I would have
never thought of it.

        I stand somewhat corrected. You can control it with a transistor, if
you rectify the AC somewhere in there.

-----Original Message-----
From: Bob Blick [mailto:bblick@SABER.NET]
Sent: Saturday, February 17, 2001 12:15 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: URGENT Power Control help needed


>If it's an ac motor or a universal motor running on AC, you
>can't control it via a single transistor.

Hi Phil,

Don't tell that to Ampex then, because I've worked on 24-track Ampex MM1200
tape recorders that did just that.

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