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Showing posts with label Circuit. Show all posts
Showing posts with label Circuit. Show all posts
2021-04-25

An Inexpensive Interface Cable for Baofeng Transceivers

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Much less expensive than the individual components  I know many of us have Baofeng and Wouxon transceivers. I recently came across this tip ...
2020-11-28

Tech Topics: Review Of An SDR Dongle

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The SDR Dongle   SDR = software defined radio Having already a conversation with VE7TI (John) about an older generation of SDR dongles I fel...
2020-10-28

Not All Triplexers Are Equal: A Review of the Dunestar HF Triplexer

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  ...Buyer Beware! I had an opportunity to troubleshoot and repair SARC’s Dunestar triplexers. A couple of surface mount capacitors failed a...
1 comment:
2019-12-31

The January/February 2020 Communicator

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Here is the Latest SARC Communicator Projects, News, Views and Reviews...  Happy New Year from all of us here at SARC! Here is ...
2019-12-19

Back To Basics: Voltage Measurement

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How is a voltmeter usually connected to a circuit under test? Question B-005-013-001 - From The Canadian Basic Question Bank A handy ...
2019-11-21

Make Your Own Single-layer Air-core Coil

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Information and examples to make practical single-layer air-core coils. Whenever you are working on an RF filter, choke, antenna or ...
2019-10-10

The Power Gate: Keeping The Voltage On

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A Communicator Reprise...   November 2015 The commercial alternatives are good, but pricey.  Here is an option for less than $10 I...
2019-09-29

Two Battery Monitor Projects

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A Communicator Reprise... October 2015 John demonstrating his meter to the group Last spring, SARC initiated a competition to see w...
2019-09-22

Gel Cel Battery Charger 12 Volt—7.3 Amp

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A Communicator Reprise.. . September 2015 Two of my hobbies are hiking and camping.  Usually I take my QRP gear with me, includ...
2019-08-15

A Simple Touch 'Code' Keyer

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An Inexpensive Circuit With An IC And A Few Parts Imagine tapping the table to generate Morse Code! This simple code practice oscillator ...
2018-05-30

A LED Replacement Light For Your Soldering Iron

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A Communicator Reprise: January 2012 One of handiest tools for the Ham Shack workbench is a Weller soldering gun.   It’s a 100 and...