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Spy Circuits

with frequencies around 100MHz. It seems the designer had difficuities with audio instability, due to the iow v; on the microphone and tried to fix the problem with electroiytics. The Circuit has 4 unnecessary components c into manufacturing, these will be a costly mistake.

This project is to be avoided if you want a good rangę with Iow current consumption. Some of our other Circuit choice. The photo below shows the assembled Circuit.

should be a coil

9 wrong things with a Circuit

There are actuaily 10 wrong things. The transistor, capacitor and coil are too far from each other. This produces a very poor "Q."

A photo of the Circuit above. This Circuit is a very poor design. It was produced by a non-technician. That*s why you have to study electronics, so you don’t make a fool of yourself.

11. MORĘ POOR DESIGN

Here is another Circuit with extra complexity and a useless output stage.

2011-12-08

mk:@MSITStore:F:\spy circuits.chm::/SpyCircuits-l.html