RD54 Stopped Spinning

Robert Jarratt robert.jarratt at ntlworld.com
Sun Apr 5 11:52:06 CDT 2015

Not tried swapping them as they are firmly attached to a heat sink. If I have further problems will try this.

-----Original Message-----
From: "tony duell" <ard at p850ug1.demon.co.uk>
Sent: ‎05/‎04/‎2015 17:03
To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org>
Subject: RE: RD54 Stopped Spinning

> I suppose that is possible, but not sure that would explain the dead stop, although I suppose it isn't impossible. I 

Bad connections rarely do anything you expect :-)

> was nowhere near it when it happened. Do the signals I posted look right to you? Would you expect inconsistent 
> triggering on the scope on just one of the FET outputs?

More seriously, have you tried swapping the FETs round to see if the dodgy signal goes with a particular


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