G3YNH.info  

David W Knight
Ottery St Mary,
Devon, UK.

DWK in his half-dark period

Precision RF bridge
From Transmitter to Antenna:
HF power transmission theory and practice
.
AC theory, Components and Materials, Inductors and Transformers, Impedance matching, RF bridges.

Fixed vacuum capacitor

Coil resonance experiments
Low-pressure gas ionised by the electric field of a resonating inductor. see: coil resonance experiments.

Demodulators and signal rectifiers
Demodulators and
sigal rectifiers

New additions
& corrections

Gas discharge tubes
Gas Discharge Tubes,
spark gaps & thyratrons

Frequency display
Digital Frequency
Readout

Valves
Andy Cowley's
Valve Pages

(see also: Introduction)

Nixie tubes
Nixie and other digital indicator tubes.

Workshop

Kenwood TS430s
Commercial radio equipment. Notes & mods.

SGC230
Using the SGC 230 'Smartuner' in a balanced antenna configuration.

Racal RA17
Racal RA17:
Receivers,
Adapters, etc.

NLO
Astronony &
Radio Astronomy

Links
Web Links -
Radio & Electronics

Photography
(General and underwater)


Last uploaded: 2016-05-09 (3651 files, 369 MiB)


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