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Boffin's blog
tubes, amps and more…
Tube Amps
ESP32 Squeeze-lite
DHT Filament Heaters
300B SE
KT88 SE UL
2A3 SE
1626 PSE
1625 PP
Dynaco 6V6 Push-Pull
Transformers
Tubes
Digital
FPGA
FPGA THD Analyzer
Measurements
DIY Curve Tracer
uTracer3+
uTracer and ESP32
uTracerJS
ESP32 Spectrum Analyzer
Cap Leakage Tester
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
8 Ohm Dummy Load
NIKKO TRM 40LA
Transistor Tester (MTester)
Ducky One Keyboard
About
300B SE
