-
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
-
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
-
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
-
Customizable router bit box for various shank sizes
Organize your router bits with this 3D printable box. Continue reading
-
DIY: Digital EM84 “magic eye” replacement
My first attempt at making a digital replica of an indicator tube. Continue reading
-
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
-
Restoration: Tandberg Sølvsuper 9, step by step
A thorough walkthrough of the restoration and alignment process of a vacuum tube AM/FM radio. Sølvsuper 9 is used as example, but many of the troubleshooting and alignment steps apply to other tube based broadcast receivers. Continue reading
-
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
-
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
-
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
-
DIY: STM32 WhiteBoard64, Part 2: Assembly and testing
Soldering and testing the new STM32F411 development board. Continue reading
-
DIY: STM32 WhiteBoard64, Part 1: Design
Designing a breadboard-friendly STM32 development board with lots of I/O and memory, using a 64-pin STM32F411RET6 microcontroller. Continue reading
CATEGORIES
- Devices (59)
- Audio amplifiers (4)
- Broadcast receivers (13)
- Instruments (24)
- Microcontrollers (9)
- Power supplies (1)
- Storage (1)
- Televisions (1)
- Tools (11)
- Vacuum tubes (1)
- Horticulture (3)
- Processes (61)
- 3D printing (13)
- Concepts (4)
- DIY (49)
- Modification (5)
- Recycled parts (5)
- Repairs (3)
- Restoration (8)
- Woodworking (1)
ABOUT ME
Self-taught electronics hobbyist. Collector of Tandberg and other Norwegian broadcast receivers.
Retronics 