Posts tagged ‘High Voltage’

Teardown and Modification of an Electrophoresis Power Supply

Electrophoresis power supplies are commonly found in biology and other life sciences laboratories. These power supplies are usually capable of supplying high voltages and high currents required for gel electrophoresis–a method used for separating DNA, RNA and other protein fragments based on their size and charge. There are many used electrophoresis power supplies out there in the second hand market and can be bought quite cheaply. I am curious whether these electrophoresis power supplies are suitable for electronics lab use as a lab grade high voltage power supply can be quite expensive. So I recently picked up one from eBay to take a look.

Continue reading ‘Teardown and Modification of an Electrophoresis Power Supply’ »

3D Print an HV Connector

In one of my previous posts, I did a teardown of a Bertan 225-20R high voltage power supply, which is capable of outputting 1mA with an adjustable voltage range up to 20 kV. The power supply came with a special high-voltage connector however (similar to the CMC series connectors from Connectronics Corp), but I wasn’t able to get a mating connection cable. At least not at a reasonable price. Continue reading ‘3D Print an HV Connector’ »

Bertan/Spellman 225-20R HV Power Supply Teardown

I just picked up another high voltage power supply, this time it is a working Bertan/Spellman 225-20R 20kV one. Unlike the Bertan 205A-05R that I did a teardown with last time which was entirely analog, this one can be controlled digitally either via the front panel or via GPIB from the back. In this blog post, let me share some of the teardown pictures with you. If you are interesting in seeing some cool experiments with this high voltage power supply, you can scroll down and watch my video towards the end. Continue reading ‘Bertan/Spellman 225-20R HV Power Supply Teardown’ »

Bertan/Spellman 205A-05R High Voltage Power Supply Teardown

I got a non-working Bertan 205A-05R 5kV high voltage power supply and did an attempted repair video a while ago (see video towards the end). But I forgot to post my teardown pictures somehow. So here we go, better late than never. Continue reading ‘Bertan/Spellman 205A-05R High Voltage Power Supply Teardown’ »

Yet Another Flyback Transformer Project

I was looking for some parts a couple of weeks ago and came across an old TV flyback transfomer, so I thought I would build a project with it. Continue reading ‘Yet Another Flyback Transformer Project’ »