Nope! you are totally wrong. They look alike but have different componnents. The Prototype I have been testing for over a year discriminates, and is not for sale.
The one on my web site that I sell DOES NOT discriminate. It is sold as an accessory for Frequency Discriminators of all manufacture.
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Dell had no choice but to remove the Vernell products from his web page, but just look at the lies he publishes today... We still see fraudulent advertising where he claims his Pro-4 contains a microcontroller: "The frequencies are very stable computer programmed, generated and broadcast through a small electronic (state of the art) microcontroller circuit."
This is a lie! Anybody who reads this is being defrauded. There is no computer program or microcontroller in the Pro-4. The only electronics in the Pro-4 are a 555 timer IC and a switch that makes it oscillate at different frequencies. The 555 timer chip is not state of the art. It was developed a couple decades ago to perform electronic timing functions, not microcontroller functions. This 555 timer cannot accept any computer program because it is not programmable, and has no programmable memory or microconrtoller features whatsoever. Maybe Dell is willing to show us some evidence of a "computer program" or a "microcrontroller" inside the Pro-4. When Carl opened one of Dell's Pro-4 locators, he found a speaker coil that was ripped out of a speaker and glued inside an empty potentiometer casing -- hardly "state of the art".
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YOU ARE A LIAR. I DEFY YOU TO SHOW A 555 TIMER INSIDE THE PRO-4, UNLESS YOU DON'T KNOW THE DIFFERENCE BETWEEN A MICRO-CONTROLLER AND A 555 TIMER.
STUPID IS AS STUPID DOES. YOU NEED TO RETRACT YOUR LIES AND MAKE APOLOGIES. DELL
