Categories

Posts Tagged ‘DC power supply’

Glowing mercury thyratrons: Inside a 1940s Teletype switching power supply

Monday, September 24th, 2018

Ken Shirriff take a look inside a bulky DC power supply REC-30 rectifier, how it works and contrast it with a MacBook power supply: We recently started restoring a Teletype Model 19, a Navy communication system introduced in the 1940s.14 This Teletype was powered by a bulky DC power supply...

Tags: ,
Posted in power supply, Teardowns | No Comments »

Recent Comments

  • Edward Mallon: I've been oversampling those thermistors with the ADC and some pin-toggle noise for a while now, and that method is good. But lately I've been...
  • Marko: armature -> amateur
  • Crawford: Dibs,
  • bill: a sunny Sunday here
  • Iain NoSpam: A very random comment from a very random commenter