On 2/6/2012 11:27 PM, D wrote:

Thanks for the great replies. I'm not sure what the chip is, it's a SOP8
package, not a DIP like a 555 timer. Probably right, some proprietary
design with little data available. One side of the line is switched via
a small transistor, I disconnected the transistor & ran that side of the
line directly. Heat levels are adjusted with the control switch on the
other side of the line. So far so good. Also, the bloody thing is
SUPPOSED to shut off at 2 hours, and it's barely making it past ONE. PITA.

Dan

I just re-read this & want to clarify that the pad IS now staying "on",
after the mods. The message above may not have been clear. Thanks again.

Dan