Floppiclene! A Electronics Cleaning Relic of the Past.

I found a old 3.5″ floppy drive cleaning kit and tried it out on a defective computer/floppy drive/floppy that I had. It would constantly ruin “new” disks and leave them with few kb of useful space.

It also failed horribly!

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Siemens Polyphos 30, X-RAY Inverter and Control Panel Teardown (Part 3 of 3)

Teardown of the Siemens Polyphos 30 X-ray systems control panel including computer, safety functions, HMI and high voltage inverter circuit.

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Siemens Polyphos 30, X-RAY Collimator and Image Plate Teardown (Part 2 of 3)

Teardown of the Siemens Polyphos 30 collimator and image plate. Collimator had an interesting moving blinds design with a lot of gears, pulleys and strings. Image plate has a lead grid and some kind of sensor.

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Siemens Polyphos 30, X-RAY 125kV head teardown (part 1 of 3)

Teardown of the Siemens Polyphos 30 X-ray head which contains step-up transformers, voltage multipliers and a rotating plate x-ray tube and a lot of oil!

Discussion of teardown and additional pictures: https://highvoltageforum.net/index.php?topic=523.0

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750W Victron Solar Project – Power wall and 8 days performance – Part 3

In part 3 I test the setup with all 3 panels connected and look at the performance over the last 8 days.

It all consists of:

3x 250W solar panels

1x Victron SmartSolar 100|30 MPPT battery charger

2x Norbatt 12V 150Ah batteries

1x 750W 24VDC to 230VAC inverter

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TIG welder teardown. ESAB TIG Caddy 1500i.

A teardown of a ESAB Caddy 1500i TIG welder, a run down of the current paths in the system and I show which parts I kept.

Datasheet on the unit: https://www.esab.dk/dk/da/products/arc-welding-equipment/tig-equipment-cc/industrial-equipment/caddy-tig-1500i-2200i-ta34.cfm

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750W Victron Solar Project – All 3 panels test – Part 2

In part 2 I test the setup with all 3 panels connected, it all consists of:

3x 250W solar panels

1x Victron SmartSolar 100|30 MPPT battery charger

2x Norbatt 12V 150Ah batteries

1x 750W 24VDC to 230VAC inverter

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750 Watt Solar Project – Test Setup – Part 1

In part 1 I give a walk-through of my test setup, charging and the Victron app to control the charger over blue-tooth, it all consists of:
3x 250W solar panels
1x Victron SmartSolar 100|30 MPPT battery charger
2x Norbatt 12V 150Ah batteries
1x 750W 24VDC to 230VAC inverter

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3 new MIDI videos with Kaizer DRSSTC1

Ghostbusters theme

The Buggles – Video killed the Radio Star

Awolnation – Sail

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Teach your kids electronics

I could write a long motivational letter about the importance of teaching on electronics with all its basic trades of logical thinking and scientific methods, but instead I will leave you with the happy face of a 5 year old that completes her first little project 🙂

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