Crystal Controlled 150xt Trasnsmitter Circuit

Spy FM Transmitter Circuit Crystal Controlled

 

150xt Transmitter
© 2012 By John S. Wilson Jr.
john@bugplan.com

Transistors: Digi-Key Electronics

Q1 Q2 and Q3 - MMBTA20 - Digi-key Electronics

Q4 and Q5 - MBTH10L - Digi-key Electronics

V1 - MMBV2109 - Digi-key Electronics

XT - 15 or 16 Mhz Crystal. - 15 Circuit Operates @ 150 Mhz. 16 - 160 Mhz

Digi-key Electronics CA-301 Barrel Crystals Will Work ( They Are Cheap )

L1 - .15uH

L2 - .10uH

Battery: 3V Button Cell if Surface Mount - Or 2 AAA Batteries in series TTH

Antenna: 16" Small Stranded Wire

Watch The Video Below Of Pete Zenners Demo of this Circuit, and then click into the links - below that video to see his assembly

 

Crystal Controlled Transmitter Circuit Built By Pete Zenner

Crystal Controlled FM Transmitter Circuit - 150xt

The 150xt Crystal Controlled transmitter circuit shown belowhas been produced in quite a few configurations. It is highly unique and will accept voltages from around 2V to almost 6 volts with no circuit changes. I have surface mounted it from the size of a postage stamp in the past and it is highly stable. It was one that saw much action back in my days and was built for quite a few drug squads and task forces.
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