On Fri, 04 Feb 2005 05:34:29 GMT "NSM" wrote in Message
id: FPDMd.303$rB6.170@edtnps91:


"CJT" wrote in message
...

Ever hear of Lissajous figures?

Yup. And you can't drive a yoke with an 8 ohm speaker output. It takes some
serious amps. And you can't vary the frequency by very much either.

FWIW, I did exactly that about 20 years ago on a color RCA tube chassis
that had a deflection problem. Disconnected the yoke from the chassis and
used the left channel to drive the horizontal and the right channel to
drive the vertical. The patterns would fill the screen at about 3/4 volume
using a 50W per channel receiver. It was quite the hit at parties.