Psion Series 3a vs. Technics RS-B665

Controlling my 1990s Technics tape deck from a 1990s PDA – Psion Series 3a remote control

Tiny Oscilloscope kit based on STM32F103 ARM microcontroller

I discovered this tiny oscilloscope kit the other week. It’s a DSO138 by JYE Tech – £30 from Amazon(UK) or less than £20 if you can wait for delivery from China 🙂It took me less than 2 hours to build and worked first time! I’ve still got some soldering skills lol. It comes in twoContinue reading “Tiny Oscilloscope kit based on STM32F103 ARM microcontroller”

Replacing white LED stylus target light on Audio-Technica AT-LP120X

I recently bought a new turntable, the Audio-Technica AT-LP120XUSB. I wanted direct drive, decent quality (to match my ageing & damaged hearing!) and USB built in so I could hook up recording/streaming devices. I found an eBay listing for less than RRP and had a 20% off eBay voucher too so it was a no-brainer…Continue reading “Replacing white LED stylus target light on Audio-Technica AT-LP120X”

Flashing LEDs with a 555 timer – and not a lot else

Just dug this out of storage – some electronics I made in the late 80s/early 90s. Most of it is old/scrap components – only the 555 and the MC14526 counter/divider actually do anything – flashing the LEDs long the edge. I can remember making it at work during quiet times as a side project, IContinue reading “Flashing LEDs with a 555 timer – and not a lot else”