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Posts tagged 波思特,

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.

Circuit Test Equipment

Circuit Test Equipment using LM6462, 2N7000

SCHEMATIC DIAGRAM Relay Driver Board Project

This article means to utilize your old PC to be come a simple controller. Many old PC like 8088 type, 8086, 80286, 80386, or even 80486 already become an obsolete systems. This board using 8-bits of LPT printer parallel data port (DP) to activate the relays. LPT printer parallel port also have 4-bits additional port […]

The control Lights 220V circuit

The control Lights 220V circuit could be realized using transformer The control Lights 220V circuit could be realized using transformer

2000W Power Amp OCL Circuit Using SANKEN

1000w – 2000W Power Amp OCL Circuit Using 741 and SANKEN A1494, A1216, C3858, C2922 1000w – 2000W Power Amp OCL Circuit Using 741 and SANKEN A1494, A1216, C3858, C2922 If you want a full 2000w used the Sanken 8 to 16 pieces of transistors

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