IanJohnston.com

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Whats New.............

Coming Soon: I'm working on two projects at the moment (video blogs), the first is a home built Arduino controlled SMD oven based on a toaster oven, and the other is a home built 25w guitar amp c/w valve pre-amp, solid state main amp and with my own 3-band active EQ.

Main News.............

Video Blog - Fender Frontman 15G Amplifier Upgrade

Video Blog: Final stage amplifier, power supply, reverb & speaker upgrade, making this cheap amp drive and sound better.
Date: 08/05/13

Video Blog - Fluke 8842A DMM Repair

Video Blog: Repair of my Fluke 8842A Bench DMM. Swapping out the display for a new one.
Date: 13/02/13

Video Blog - Panasonic Camcorder Repair

Video Blog: Repair of a Panasonic Camcorder from Ebay that was sold with a "won't power up" problem.
Date: 12/02/13

Video Blog - Maas SPS-50II Power Supply Panel Meter Conversion

Video Blog: Replacing the analogue voltage & current panel meters on my Maas power supply for a couple of 3 digit LED meters.
Date: 25/01/13

Video Blog - Electronics Workshop Tour

Video Blog: A tour of the place I call home......my Electronics Workshop.
Date: 12/01/13

Video Blog - Racal-Dana 1991 Universal Counter Repair

Video Blog: Another Ebay purchase, this time a faulty Racal-Dana 1991 Universal Counter. Faulty front panel repaired in the workshop.
Date: 04/01/13

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OHMS LAW

Fill in any TWO numeric values and I'll give you all FOUR.
Volts
Ohms
Amps
Watts

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