David Theodore Nelson Williamson was a prominent Scottish electronics engineer, best known for designing the Williamson amplifier—a seminal high fidelity valve amplifier. His design featured OSRAM brand valves and was published in the British Wireless World magazine starting in 1947. Through his career, he worked at M. O. Valve Company, Ferranti, and later served as Group Director of Engineering at Rank Xerox until his retirement in 1976. He was recognized for his contributions to engineering by being elected a Fellow of the Royal Society in 1968.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 227 days away.
Death Anniversary
Next death anniversary is 53 days away.
Death Date
Place of Birth
Time Zone - Europe/London (0:0 W)
Chinese Zodiac Sign
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Meaning of the name - David
beloved, friend
Read Full David Name AnalysisFebruary 15, 1923 Facts
Generation Group
David Theodore Nelson Williamson belongs to the GI Generation group.
Place of Birth: Edinburgh
Occupation: electrical engineer | inventor | audio engineer
Employers: Marconi-Osram Valve | Ferranti | Xerox
Awards Received: Fellow of the Royal Society (F.R.S.)
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.Ephemeris for February 15, 1923
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on February 15, 2026 | Secondary Progressions for February 15, 2026 |
|---|---|---|---|
| Sun | 25 Aquarius 47 | 26 Aquarius 48 | 7 Gemini 5 |
| Moon | 22 Aquarius 17 | 2 Aquarius 59 | 27 Scorpio 12 |
| Mercury | 0 Aquarius 43 | 13 Pisces 59 | 6 Gemini 30 |
| Venus | 9 Capricorn 19 | 6 Pisces 21 | 9 Taurus 29 |
| Mars | 18 Aries 11 | 18 Aquarius 6 | 29 Gemini 5 |
| Jupiter | 18 Scorpio 9 | 16 Cancer 0 | 10 Scorpio 54 |
| Saturn | 20 Libra 32 | 0 Aries 4 | 14 Libra 19 |
| Uranus | 12 Pisces 32 | 27 Taurus 31 | 17 Pisces 18 |
| Neptune | 16 Leo 32 | 0 Aries 34 | 15 Leo 39 |
| Pluto | 9 Cancer 19 | 4 Aquarius 9 | 9 Cancer 52 |
| Rahu | 21 Virgo 56 | 9 Pisces 45 | 16 Virgo 28 |
| Ketu | 21 Pisces 56 | 9 Virgo 45 | 16 Pisces 28 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
