DIY
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DIY: work light / warning light / emergency light / morse SOS flasher for DeWalt XR batteries
The creation of DeLight Omni, a compact, omnidirectional lamp powered by DeWalt XR batteries. The lamp offers adjustable brightness and four different modes: directional light, omnidirectional light, warning flasher, and SOS morse code flasher. Continue reading
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DIY: AGC disabler for use when aligning vacuum tube radios
A battery powered, adjustable voltage source for locking broadcast receivers’ AGC lines at a certain DC voltage during alignment. Continue reading
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Repair: Samsung UE55NU7105, 55″ 4K LED TV
Repairing a BN44-00932C PSU board, which is used in UE55NU7105 and several other Samsung TV models. Continue reading
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DIY 600 volts capacitor discharger, constant current
A 10mA constant current capacitor discharger for use with e.g. vacuum tube radios/amps, or switch mode power supplies. Continue reading
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DIY 600 volts capacitor discharger pen
A pen-shaped capacitor discharger with LED status indicator, for fairly high voltage circuits like vacuum tube radios and amplifiers, and switch mode power supplies. Continue reading
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Customizable router bit box for various shank sizes
Organize your router bits with this 3D printable box. Continue reading
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DIY: Digital EM84 “magic eye” replacement
My first attempt at making a digital replica of an indicator tube. Continue reading
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DIY: USB-to-UART (FTDI) converter
A custom FTDI adapter with a space saving FFC connector, for applications where standard pin headers/sockets are too big. Continue reading
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DIY: Noval (9-pin) vacuum tube test adapters
Test sockets that make the pins of noval vacuum tubes easily accessible for test instruments and signal generators, while being operative in circuit. Continue reading
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DIY: STM32 WhiteBoard48: A “Blue Pill” alternative with twice the program memory
Breadboard friendly development board with STM32F103CBT6. 128KB program memory and optional 4MB flash. Continue reading
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DIY: ST-LINK interface board for STM32
Reusing the ST-LINK adapter from a Nucleo board as programming and debugging interface for your custom STM32 boards. Continue reading
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DIY: STM32 WhiteBoard64, Part 2: Assembly and testing
Soldering and testing the new STM32F411 development board. Continue reading
CATEGORIES
- Devices (53)
- Audio amplifiers (4)
- Broadcast receivers (12)
- Instruments (23)
- Microcontrollers (8)
- Storage (1)
- Televisions (1)
- Tools (9)
- Processes (53)
- 3D printing (10)
- Concepts (4)
- DIY (41)
- Modification (5)
- Recycled parts (3)
- Repairs (3)
- Restoration (8)
- Woodworking (1)
ABOUT ME
Self-taught electronics hobbyist. Collector of Tandberg and other Norwegian broadcast receivers.
Retronics 