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Boffin's blog
tubes, amps and more…
Tube Amps
EL84 PP
300B SE
KT88 SE UL
2A3 SE
1626 PSE
1625 PP
Dynaco 6V6 Push-Pull
DHT Filament Heaters
Transformers
Tubes
Digital
ESP32 Squeeze-lite
miniDIG and CamillaDSP
FPGA
FPGA THD Analyzer
Measurements
uTracerJS
uTracer and ESP32
Analog Discovery Audio Board
Cap Leakage Tester
DIY Curve Tracer
uTracer3+
ESP32 Spectrum Analyzer
CircuitGear Mini
8Bit
GAL Programmer (Arduino)
EPROM Programmer (Arduino)
Commodore C64
1541-II
1541C
Pi1541
ZX Spectrum 48k
ZX Spectrum 128k
ZX81
ZX DivIDE
ZX AY-3-8910 Sound
ZX Spectrum external 128k RAM upgrade
ZX Spectrum Links
Other
EMU 0404 artefacts
8 Ohm Dummy Load
NIKKO TRM 40LA
Transistor Tester (MTester)
Ducky One Keyboard
About
Measurements
DIY Curve Tracer
uTracer
ESP32 Wifi for uTracer
CircuitGear Mini
