DIY
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DIY Plant light in an old bookshelf, Part 2: Optional shelf heaters
Thermostat controlled shelf heating elements. Continue reading
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DIY Plant light in an old bookshelf, Part 1: LED strips, dimmers and timer
Customizable LED illumination with timer and dimmers, for germinating and growing plants indoors. Continue reading
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DIY: Digital 6U5 Magic Eye replacement
A solid-state 6U5 replica based on circular TFT display and STM32 microcontroller. Continue reading
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DIY: Test sockets for vacuum tubes
Adapters for testing and experimenting with tubes. Socket types Octal, P8A and U6A. Continue reading
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DIY: Switched breadboard PSU, 6-20V input, 3.3V and 5V outputs, 2 Ampere
A small yet powerful PSU for breadboards, with optional USB input. Continue reading
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DIY: Breadboard adapter for 0.99″ circular display with GC9107 controller
A small adapter board for interfacing the ER-TFT0.99-2 display. Continue reading
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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
CATEGORIES
- Devices (58)
- Audio amplifiers (4)
- Broadcast receivers (13)
- Instruments (23)
- Microcontrollers (9)
- Power supplies (1)
- Storage (1)
- Televisions (1)
- Tools (11)
- Vacuum tubes (1)
- Horticulture (3)
- Processes (60)
- 3D printing (13)
- Concepts (4)
- DIY (48)
- Modification (5)
- Recycled parts (4)
- Repairs (3)
- Restoration (8)
- Woodworking (1)
ABOUT ME
Self-taught electronics hobbyist. Collector of Tandberg and other Norwegian broadcast receivers.
Retronics 