short wave receiver preselector circuit schematic

SW Receiver Preselector Circuit

Received by Email - 05/29/08

This is a Preselector for SW receivers (diy hf preselector) circuit. The entry low capacitance of MOSFET modern, [...]

VOX Circuit

Received by Email - 05/21/08

VOX is a switch ordered by voice, often used at microphones instead of the classic switch button. The [...]

NS741 Stereo FM Transmitter Circuit

P. Marian - 05/19/08

NS741 is an integrated circuit, a small power fm transmitter were left and right audio signals can be [...]

BLY94 50W RF Amplifier Circuit

P. Marian - 05/11/08

This fm rf power amplifier circuit is built with BLY94 transistor which delivers up to 50W at 175MHz [...]
stereo encoder circuit schematic

Stereo Encoder Circuit

P. Marian - 05/10/08

This simple stereo encoder circuit schematic is build with 2 IC MMC4066E and MMC4047 and one transistor BC547B. [...]
tv transmitter circuit

Small TV Transmitter Circuit

P. Marian - 05/06/08

This small video transmitter is very usefull for video surveillance on short distances ( up to 100m ) [...]

CB 27MHz Transmitter Circuit

Received by Email - 04/26/08

NBFM or Narrow Band Frequncy Modulation is used in this 27 MHz transmitter circuit schematic. This circuit is [...]

FM Dipole Antenna

P. Marian - 04/17/08

DIY FM dipole antenna or half wave antenna are the most used because is easy to build and [...]

300W FM RF Amplifier Circuit

P. Marian - 04/14/08

This 300W RF power amplifier for your fm transmitter has 2 x TP9383 transistors. 300W radio power amplifier [...]

20W FM RF Amplifier Circuit

P. Marian - 04/14/08

This FM RF power amplifier has 2 transistors from Philips: BLV10 and BLW87. The 2 rf transistors work [...]
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