Description:  Q1 is an excitation amplifier, which gives enough driving signal to the output stage of power amplification; R1 and RP2 are the bias resistors of Q1; R3, D1 and...

Descriptions:  The QRM canceller is inserted from the trxinto the antenna's feeder without any additional modifications to the radio. The box has a built-in PTT control that keeps the canceller...

Description:  The product uses relay to switch signals, and the sound quality is not wasted.  Power supply: DC 7-30V AC6-20V;  It has no signal amplification function, just switching signal source. ...

DIY Sine Wave Generator Kit Simulation Skill Test 511 DIY Electronic Production Parts -2021.    Feature:  Board size: 55*28mm;  Power supply voltage: AC12V;    Note:  1) Before power on, check...

Description:  Usage introduction: suitable for solar energy application science teaching, green energy teaching, students' extracurricular science and technology small inventions, scientific experiment toys, manual assembly work, etc.    Reminder: This...

Feature:  New design concept, new innovative design.  Single chip driver.  16x9 or 16x8 dot matrix combinations.  Support infrared remote control.  Support animation acceleration and deceleration, spectrum sensitivity adjustment, animation support...

Feature:  Two-color LED strobe fun DIY kit parts produced.  Simple and practical, easy installation, low power consumption.     Technical specifications:  Color: Two color in random;  Dimensions: 9x3cm / 3.54 "x1.18"; ...

Note: This is a DIY kit, you need to assemble it. We don't supply any manuals please note about this before you order it.  Brief introduction:  This kit is a...