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Mike Bassett

Making in my shed

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September 7, 2022September 7, 2022 MikeShed

Discharge Wand

While working on high voltage power supplies – several hundred volts – I often found myself needing to discharge capacitors which had retained thier high voltage after power had been […]

November 19, 2020 MikeShed

A Really Good Notch Filter

When you think notch filter you usually think twin T: In this R1 = R2 and C2 = C3, C1 is 2 * C2 and R3 is R1 / 2. […]

November 11, 2020November 19, 2020 MikeElectronics

A Tale of Two Noises

There are sometimes when noise is useful. I find that when designing filter for instance that rather than using a swept frequency and an oscilloscope a noise generator and spectrum […]

November 5, 2020November 5, 2020 MikeElectronics

Short Circuit Tracer MKII

After successfully completing my first quite crude short circuit tracer I decided that I could make a better one: This one will memorise the best result so far and flash […]

June 3, 2020November 5, 2020 MikeElectronics

Short Circuit Tracer

This is a simple circuit that can track down a short circuit on a PCB or elsewhere to within a few mm or so. The accuracy depends on the parts […]

May 24, 2020January 29, 2021 MikeElectronics

RC Servo Tester

Having obtained a bunch of RC servos I thought it would be a good idea to test them. One way to do it would be to use an Arduino; which […]

October 2, 2018November 5, 2020 Mike3D printing, Arduino, Electronics

Variable Colour Temperature Lamp – VCTL Mk2

Several years ago I made a lamp for Graham, my artistic brother. This was actually  lamp with 2 LEDs; warm – 5300C and Cool – 6300C. Both were 2000lm. They […]

January 8, 2017June 17, 2020 MikeElectronics

Analogue Function Generator

Every electronics lab needs a function generator!  The one describe here, when fully built, produces sine, square and triangle waves at a range of frequencies from about 0.25Hz up to […]

January 7, 2017November 5, 2020 MikeElectronics, Shed

Shed Lighting

When I first built the shed the lighting was provided by work lights on cables hung from hooks in the ceiling.  It wasn’t very good.  As I mentioned in the […]

January 6, 2017February 14, 2022 MikeShed

Shed – my biggest hack

A couple of years back I decided that I needed a bigger workspace.  At the time I was in a room 2.4 x 1.8 metres.  I started by looking at […]

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