Reference tables
- Updated 2025-02-05 01:14 UTC
This is a collection of technical reference tables that I have been accumulating since I was a child. To a large extent, site such as the Wikipedia have rather surpassed this particular project. However, this pre-dates the Wikipedia by a couple of decades – 1973 to be precise. Though obviously there have been a lot of updates since then. Besides, I rather like having all this stuff in one easy-to-find location. Seems we still have a few readers who quite like it too.
- General, including…
- Batteries – button cell equivalents
- Batteries – dry and alkaline international equivalents
- Batteries – lead acid equivalents
- Battery formulation IEC codes
- Domain name country suffixes
- Electronic component colour codes
- Form Factors for Media Storage
- Global METAR stations
- ISO 216 (DIN 476) “A”, “B” & ISO 269 “C” series paper sizes
- International clothing size equivalents
- International Morse Code
- International phonetic alphabet
- Keyboard shortcuts
- Mathematical and other constants
- Metric non-SI units
- Metric prefixes
- Metric SI units
- Metric versus binary computing prefixes
- MP3-ID3v1 genre tags
- Original ARPA domain abbreviations
- Sound pressure levels
- Wind speeds
- Wire gauge equivalents
- Radio Frequencies, including…
- Internet radio player URLs
- AM and FM Radio frequencies for broadcast stations near Southampton, England
- Aircraft frequencies, EU and UK
- Citizen’s Band frequencies, EU and UK
- Commonly used radio terminology
- PMR 446 frequencies
- Radio microphone frequencies
- VHF Marine band channels
- Wavebands, amateur radio
- Wavebands, shortwave broadcast (worldband)
- TV Sound Frequencies
- Analog TV sound is almost completely obsolete now. However, some folks may still find these useful.
I have tried very hard to ensure the accuracy of these tables. However, they are supplied as-is without any warranty, express or implied!