[Amps] Quad Tube 4cx800 hf amp

[Dr. David Kirkby]

R L Measures wrote:

> The most effective jamming signal is playing a tape recording of the  
> voice of the person talking.  This tidbit was discovered by the  
> Russkys during the Cold War.  They call it mayak-jamming.  .
> cheers

On way that is used to tell if people are lying about being deaf, is to 
get them to speak, and play their own voice back by a small delay. 
Hearings oneself after a short delay is very off putting.

-- 
Dr. David Kirkby BSc MSc PhD CEng MIEE
Chartered Engineer