hi all..well after much on-line searching for a "true" tone generator I was about to order the Extech 40180 as in
Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit - Wire Tracer Tone Generator - Amazon.com
The going price was steep at $75.89 but..?
Then I found a "knock-off" unit from Monoprice, the 8134 at $34.93!
Looks just the same as the Extech rig at half the price!
Tone Generator w/ Probe Kit - Monoprice.com
So, why pay more. It's on the way to me and hopefully will perform as well as the more expensive Extech model! I'll report back when tested..thanks again Jim for initiating this thread