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Small Circuits.

TitleDescriptionSourceAuthor/Designer
Under-Voltage IndicatorA simple under-voltage detector for the station supply.Radcom, June 2003
(Technical Topics)
Eric Christer Z21FO
Watchdog timerA watchdog timer to prevent 'transmit' lockups.Radcom, April 2003
(Data)
Andy Talbot G4NJT
1KHz to 30MHZ OscillatorA Simple single chip HF oscillator.Radcom, June 2001
(Technical topics)
Unknown
Home-brew mobile mikeA great project for mobile operators.Packet Radio - Jan 2001John G8MNY
Home-brew QRP SWR MeterA great project for QRP operators.Packet Radio - Jan 2001John G8MNY
Home-brew QRP Power MeterA great project for QRP operators.Packet Radio - Jan 2001John G8MNY
Simple Drill Speed controllerEssential for the DIY'erPacket Radio - Jan 2001John G8MNY
Clip-on RF Current meterEssential for the Radio constructorRadcom - Dec 2003G0SNO
MIDI - PC InterfaceA simple digital audio interfaceUnknownUnknown

Look-Up Charts.

TitleDescriptionSource
Thread comparisonA comparison between different Thread Sizes.
Imperial and Metric
Data obtained from various sources
Spanner comparisonA comparison between different Spanner Sizes.
Imperial and Metric
Origin unknown
Contributed by: Roy G3ASH
Tapping drillsChart to determine Tapping / clearance drills.
Invaluable in the workshop
Data obtained from various sources
Q CodesAbbreviations used in radio comm's
(esp' Morse)
Unknown Source
RST Codes Abbreviations used in radio comm's
(to determine quality of transmission)
Unknown Source
Lighting LevelsEquivalent lighting levelsJohn G8MNY
Sound LevelsEquivalent Sound levelsJohn G8MNY
dB ratio'sPower & voltage dB ratio'sJohn G8MNY
Frequency Listing.Slow download (150Kb) but loads of info!www.wibble.co.uk
Battery Cross reference.Battery Cross-reference.
With Tech' details too.
Steve G0KVZ
IP Rating.Ingress Protection ratings.All over (public domain)
Military Airbase Info Chart. (PDF)Radio frequencies.
for military airbases.
Var (Public domain)

Connector Pinouts.

TitleDescriptionSource
Audio:
Scart
Scart (Peritel) ConnectorVarious sources
Computer:
Bus-Mouse
Bus mouse connections - essential for those 'older' computers.Various sources
Computer:
Parallel port
Parallel port connections (printer).Various sources
Computer:
Serial port
Serial port connections.Various sources
Video:
S-Video
S-Video connectionsJohn G8MNY
Computer:
Video connectors
Misc' Computer Video ConnectionsJohn G8MNY
Video:
10 pin Video
10 pin video connectionsJohn g8MNY
Computer:
Cat 5 x-Over
Cat 5 Crossover lead.Steve Adams G0KVZ
Audio:
XLR Connectors
XLR (Audio & Mains) Connectors.Peter Dixon G7JRK
Mains:
Travel adaptor
A Mains Travel adaptor.Peter Dixon G7JRK
Computer:
Video out
A video out lead for SVGA video cards.Steve Adams G0KVZ
Computer:
TV Out Lead
A Video lead for connecting a Dell Inspiron to a TV.Steve Adams G0KVZ
Misc:
Garmin
Garmin power connectorVarious (Internet)
Computer:
USB
USB PinoutsVarious (Internet)

Software

This section has been retained for historic purposes: Software is evolving at an astounding rate to capitalise on the power of the latest hardware.
Therefore to maintain a listing of the latest and most capable resources would be a never-ending task.
This listing shows some of the software that was commonly used in the late nineties.

 

Most software is distributed as a 'zipped' file.
Suitable Unzipping software is available Here.