I got to use the first four APZ video mini-programs this evening, filling in the gaps between the 3 x 7-minute 30 KHz zaps. It worked very well indeed in terms of ease of use and keeping track of what was going on.

I can't determine the effectiveness or ineffectiveness of the zapping with those audio frequencies, but I can confirm that the mechanics worked as intended, with the signal getting through to the APZ and my hands.

Zapperguy 23:01, September 30, 2011 (UTC)

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