This three-chanel remote control transmitter uses a unijunction transistor as low frequency oscillator. The frequencies of the channels are determined by the adjustments of P1 to P3. For 27 MHz band operation the coil is formed by 11 turns of 26 or 28 AWG in a air-core form with 1 cm of diameter. Power supply is a single 9 V battery.

 


 

 

 

Datasheets


N° of component