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To-Fro Mk III with Optocouplers![Colin Mitchell]()
To-Fro Module (built) $35.00USD plus post $6.50USD To buy: To-Fro Module (mailto: colin@elechelp…
November 19, 2019
Articles 309
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Jim's CDU MkII![Colin Mitchell]()
Jim's CDU MkII Buy a kit: Jim's CDU MkII (mailto: colin@elechelp.com ?Subject=Buying Jim's CDU MkII…
November 19, 2019
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CDU 18000u Slimline![Colin Mitchell]()
CAPACITOR DISCHARGE UNIT 18,000u SLIMLINE Capacitor Discharge Unit 18,000u Slimline kit is available…
November 19, 2019
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Point Controller for 5 Servos![Colin Mitchell]()
Cost: $20.00 plus $6.50 postage Kits are available (mailto: colin@elechelp.com ?Subject=Buying Point…
October 18, 2019
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CDU-SPDTSw-slim![Colin Mitchell]()
Capacitor Discharge Unit with SPDT Switch SLIM Kits are available for $9.50 plus $6.50 postage…
July 09, 2019
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Servo Speed Controller![Colin Mitchell]()
Cost:$18.00 plus $6.50 postage Buy a kit (mailto: colin@elechelp.com ?Subject=Buying Servo Speed kit…
July 05, 2019
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The Transistor Amplifier![Colin Mitchell]()
See: 200 Transistor Circuits P1 Page 2 Page 3 test This huge article is all about a simple…
June 01, 2019
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LONG DELAY TIMER![Colin Mitchell]()
The 555 does not produce times longer than about 60 minutes and a new chip on the market produces…
May 25, 2019
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Capacitor Discharge Unit - 18,000u![Colin Mitchell]()
Capacitor Discharge Unit 18,000u kit is available from Talking Electronics for $14.50 plus $6.5…
May 17, 2019
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Jim's Crossing Lights MkIV![Colin Mitchell]()
Kits are available (mailto: colin@elechelp.com ?Subject=Buying Jim's Crossing Lights MkIV $15.0…
May 02, 2019
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Test Your Knowledge![Colin Mitchell]()
Are you ready to demonstrate your Low Power Op Amps Essentials knowledge? ? Then take a quick 1…
April 21, 2019
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PIC Burner Board![Colin Mitchell]()
Cost: $7.00 including postage Kits are available (mailto: colin@elechelp.com ?Subject=Buying PIC…
April 17, 2019
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Prototyping Boards and Making your own PC Boards![Colin Mitchell]()
Prototyping boards are available from Talking Electronics. (mailto: colin@elechelp.com ?Subject…
April 15, 2019
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Testing Electronic Components![Colin Mitchell]()
This eBook shows you how to TEST COMPONENTS. To do this you need "TEST GEAR." The best item of Test…
March 16, 2019
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Crystal Set![Colin Mitchell]()
100 more Crystal Set plans More good Crystal Sets 41,000 people have read this article in the past…
February 03, 2019
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37 Arduino Sensors Testing Module![Colin Mitchell]()
To buy a kit: 37 Sensor Testing Module (mailto: colin@elechelp.com ?Subject=Buying 37 Sensor…
October 23, 2018
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Power Supply MkII![Colin Mitchell]()
0-12v DC 0-1Amp (current adjustable) Power Supply MkII kit from Talking Electronics for $20.0…
October 19, 2018
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Continuity Tester - Slimline![Colin Mitchell]()
Essential for servicing surface mount projects 2 levels of sensitivity.
It squeals, so you don't…
August 19, 2018
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Refilling Ink Cartridges![Colin Mitchell]()
Refilling ink cartridges has never been successful because no-one has ever explained how a cartridge…
May 06, 2018
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Charging NiMH Cells![Colin Mitchell]()
Note: No kits are available for this project One of the older type of rechargeable cell on the…
February 27, 2018
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Super Probe MkII![Colin Mitchell]()
Kits are available (mailto: colin@elechelp.com ?Subject=Buying Super Probe MkII kit&Body=Please e…
February 06, 2018
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Joule Thief![Colin Mitchell]()
Kits are available (mailto: colin@elechelp.com ?Subject=Buying Joule Thief kit $2.50&Body=Please e…
December 07, 2017
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