Welcome to AFIATA.COM Information of basic electronic circuits for repair and project
[ Content | Sidebar ]

Posts tagged 測光、

Schematic diagram for a broadband QRP SWR metering circuit and SSB TRANSCEIVER 80M / 40M boster filter IF Radio

A schematic diagram for a broadband QRP SWR metering circuit for use in a QRP antenna tuner. One could simply hold a momentary DPDT switch down and watch the LED while tuning the capacitors of the antenna tuner for minimum or zero light.

Audio circuit

150W Audio circuit diagram 150W Audio circuit diagram

Digital Dip Switch Circuit Diagram

Digital Dip Switch Circuit Diagram using DS3904

Electrical Schematic Symbols most popular symbols

Electrical Schematic Symbols

3 channel microphone circuit

3 channel microphone circuit using BC550C, BC547, BC557 P1,P2,P3______5K R1,R11,R15____180K 1/4W R2,R12,R16____2M2 1/4W R3,R13,R17____750R 1/4W R4,R14,R18____1K 1/4W R5____________15K 1/4W R6____________220R 1/4W R7____________1K5 1/4W R8____________820R 1/4W R9____________150R 1/4W R10___________100K 1/4W C1,C6,C8______1µF C2,C4,C7,C9___100µF C3,C5_________220µF Q1,Q4,Q5______    BC550C Q2____________ BC547 Q3____________ BC557

Privacy Policy - Sitemap


+1 demo: Basic page