Chinese Two-Channel Bluetooth Audio Power Amplifier Teardown

Here’s a very cheap audio amplifier, from the usual suspects in Shenzhen. This is a Herdio AMP-BTX01 Bluetooth Audio Amplifier. This is a stereo unit, but the quality is going to be piss poor! Cracking the casing, which is just clipped together reveals the sparsely populated PCB. There’s a 12v

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Schaffner PNW2050 Combination Wave Impulse Network Teardown

Here’s another module from the decommissioned impulse testing rig – the pulse forming network for the Surge generator section. Lots of high-energy high-voltage parts should be hiding in here. Pulling the cover off shows there’s not a lot to the network, but it’s a collection of rather exotic parts. The

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Beam

Melles-Griot 05-LHR-088 Helium-Neon Laser

Here’s another Helium-Neon to add to the electric glassware collection, a 2mW Melles-Griot 05-LHR-088 which I pulled from the optical assembly from an ancient Spectra-Physics SP910 laser level. This tube is a standard Red 632.8nm with Random beam polarisation. The specifications are in the table below: The label shows that

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Rubidium Glow

Efratom LPRO-101 Rubidium Frequency Reference Teardown

Time for another Rubidium Standard Teardown! This one was supposed to happen a year ago, however I completely forgot about this unit. This is an Efratom / Datum LPRO-101 Rb standard, which does differ somewhat internally from the previous unit I tore down. Above is the unit with the Mu-Metal

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Front Panel & LCD

Yellow Jacket Titan P51-870 Digital Manifold Teardown

New tool time! I figured now I’m a fully ticketed member of the F-Gas community, I’d treat myself to passing the course by buying a decent set of refrigeration gauges. This is the Yellow Jacket P51-870 Titan manifold, a fully digital unit with all the useful functions built in. Basically

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BMW 5 Series Battery Pack – Reconfiguring The Modules & Wiring

Now the cell modules have been removed from their original home, it’s time to get them repurposed! A custom mounting board has been constructed from timber, and the modules mounted on them. To say this assembly is heavy would be an understatement – it’s barely a two-man lift! As assembled

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