Replace 12V A24 meter battery with 3 lithium cells.

Faulty 1960's 6 speed Meccano motor teardown

DW01a IC analysis & experiments.Lithium protection circuit part 2

Unicorn Zkittles Pack Man vape with USB C connector and push button analysis & look at LP4068 IC.

Lithium protection board experiments . Part 1 maximum current and 8205 dual FET.

Kitchen scale repair and teardown with some circuit details

Replacing a meters 12V battery with 3 disposable vape cells.

Lidl 12V grinder teardown/repair

Vape electronics revisited

Move -delay -move back -stop with DPDT relay & 555 timer.

Lima N gauge shunter rebuild.

N gauge Lima shunt engine tear down and testing.

Using a relay move to a limit switch , delay using 555 timer and return..

Relay with toy motor with delay using a transistor.

Relays with toy motors an introduction

Using PC power supply fans to automatically boost radiator output with LM741 control circuit.

Mecano PCB drill stand with light & vacuum

5 cell lithium charger with capacity meters.

18-24 volt battery using discarded disposable vape cells (part2) disaster.

Using discarded vape cells for a 18 to 24 Volt battery. (part 1)

Meccano Animatronic updated to use one carriage drive motor instead of two.

Cloud beast paradise teardown

Squid box vape tear-down

Electronic Robo Rex puppy tear-down.

Electronic puppy tear-down newborn Teksta.

LEGO Spyibotics PCB analysis & some circuits.

DIY Lego Spybotics to PC RS232 programming cable.

Setting up a Lego RCX brick for programming with BricxCC and NQC.

Lego RCX tear-down

Discarded disposable vapes electronics including charging.