HP 33120A Repair: Shutting Down The Eye Of Sauron

Bunga CitraJanuary 4, 2023

When a friend of [Tom Verbeure] came into possession of two HP 33120A 15 MHz function/arbitrary waveform generators, he could not resist giving them a

All Aboard The Garbage Express

Bunga CitraJanuary 3, 2023

Cog railways are a somewhat unusual way of train locomotion, typically only installed when a train needs to climb steep terrain. Any grade above about

Electronics Explained With Mechanical Devices

Bunga CitraJanuary 2, 2023

It can be surprisingly hard to find decent analogies when you’re teaching electronics basics. The water flow analogy, for instance, is decent for explaining Ohm’s

Get To Know Touch With This Dev Board

Bunga CitraJanuary 1, 2023

In the catalogue of the Chinese parts supplier LCSC can be found many parts not available from American or European suppliers, and thus anyone who

Acoustic Coupler Gets You Online Through Any Desk Phone

Bunga CitraDecember 31, 2022

Up until the mid-1980s, connecting a computer to a phone line was tricky: many phone companies didn’t allow the connection of unlicensed equipment to their

Spinning Holographic POV Christmas Tree Of Death

Bunga CitraDecember 28, 2022

[Sean Hodgins] really harnessed the holiday spirit to create his very own Giant Spinning Holographic Christmas Tree (of Death). It’s a three-dimensional persistence-of-vision (POV) masterpiece,