In the field of electronics, the EF50 is an early all-glass wideband remote cutoff pentode designed in 1938 by Philips. It was a landmark in the development...

sets at an average price of £34 (equivalent to £2,663 in 2023). The new EF50 valve from Philips enabled Pye to build this high-gain receiver, which was...

the time. Additionally, the machine used 4,200 thermionic valves, mostly EF50 pentodes and diodes that had to be replaced constantly. The Williams tubes...

1400 (Portugal) CP Class 1800 (Portugal) JNR ED17 electric locomotive JNR EF50 electric locomotive Keretapi Tanah Melayu Class 15 shunter Keretapi Tanah...

2004 EC48 — March 15, 2004 Catalina CSS  · 2.0 km MPC · JPL 177499 2004 EF50 — March 12, 2004 Palomar NEAT  · 990 m MPC · JPL 177500 2004 EV52 — March...

Classification D ICD-11: EF50 ICD-10: L95.0 ICD-9-CM: 709.1 MeSH: D000090122 SNOMED CT: 238775002 External resources eMedicine: article/1082675 GARD: Livedoid...

EU38 — March 11, 2007 Kitt Peak Spacewatch  · 2.2 km MPC · JPL 611691 2007 EF50 — March 10, 2007 Mount Lemmon Mount Lemmon Survey  · 2.2 km MPC · JPL 611692...

side-contact P8A base). Nine-pin loctal bases, B9G, include the 1938 Philips EF50, EL60 and some type numbers in the European 20–29 and 50–59 range; There...

first used in consumer-type radio receivers. A well-known pentode type, the EF50, was designed before the start of World War II, and was extensively used...

had a power consumption of 3500 watts. The arithmetic unit was built using EF50 pentode valves, which had been widely used during wartime. The Baby used...

2000 ED48 — March 9, 2000 Socorro LINEAR  · 3.3 km MPC · JPL 60531 2000 EF50 — March 9, 2000 Tebbutt F. B. Zoltowski  · 5.3 km MPC · JPL 60532 Henson...

to reduce lead lengths, such as frame grid construction, as used in the EF50, and planar construction,: 192  very few tubes could operate above UHF. Intensive...

(59761) 1999 MZ 23 June 1999 list (60531) 2000 EF50 9 March 2000 list (65958) 1998 GG1 4 April 1998 list (66001) 1998 OG1 17 July 1998 list (66279) 1999...

5-4.5L lens. This lens has very similar physical qualities compared to the EF50-200mm f/3.5-4.5. The main difference is that this is an L lens, meaning that...

EL37 — March 4, 2008 Kitt Peak Spacewatch  · 3.4 km MPC · JPL 444971 2008 EF50 — February 28, 2008 Mount Lemmon Mount Lemmon Survey  · 2.0 km MPC · JPL...

2011 ES41 — October 24, 2003 Socorro LINEAR  · 4.6 km MPC · JPL 411585 2011 EF50 — November 15, 2003 Kitt Peak Spacewatch  · 3.9 km MPC · JPL 411586 2011...

2002 ES45 — March 11, 2002 Palomar NEAT AGN 1.9 km MPC · JPL 226010 2002 EF50 — March 12, 2002 Palomar NEAT  · 3.3 km MPC · JPL 226011 2002 EX52 — March...

Z90 may refer to: EF50 vacuum tube (alternate name Z90) IXUS Z90 camera Stampede Airport (airport designation Z90) This disambiguation page lists articles...

— December 9, 2012 Haleakala Pan-STARRS  · 2.8 km MPC · JPL 501525 2014 EF50 — September 4, 2011 Haleakala Pan-STARRS  · 3.9 km MPC · JPL 501526 2014...

A similar series was published after 1945 utilising the then ubiquitous EF50 RF pentode amplifier valve (tube). With the outbreak of World War II and...

the British coastal defence radar system, and helped with the supply of EF50 valves for later British radar operating at VHF. Frankland, Mark (2002)....

717A pentodes were referred to as Doorknob tubes. The introduction of the EF50 was the first serious competition for the acorn design, and replaced the...

based on an innovative vacuum tube developed by Philips of Holland, the EF50 pentode. Appleton mentioned the Pye design to Bowen, who found it to be a...

base EF42 – Pentode, EF52 with a Rimlock base EF43 – Remote-cutoff pentode EF50 (EF53) – Remote-cutoff pentode for use in the IF stages of 1940s TV and radar...

1926 Number built 2 2 2 2 17 4 3 3 6 6 2 8 2 12 14 2 Renumbered in 1928 ED10 ED11 ED12 ED13 ED50 ED14 ED15 ED51 ED52 ED53 ED54 EF50 EF51 EC40 ED40 ED41...

sparingly). A mains two valve design used the war-surplus, metal-can enclosed, EF50 valves. When transistors first became available to amateurs in the mid-1950s...

ACRXLO GBIF: 1320705 iNaturalist: 460971 IRMNG: 10803285 ITIS: 578307 NCBI: 602163 Open Tree of Life: 3258055 Plazi: D4614E1F-9E5B-5F7A-EF50-0B853F2156DE...

receiver was due to the use of a new type of tube developed by Philips, the EF50 "Miniwatt", which had been designed specifically for efficient VHF use. The...

iNaturalist: 409502 IPNI: 866979-1 IUCN: 161478201 NCBI: 450840 NZOR: 85abe6a6-ef50-455d-98a5-6a41eb3c04a2 Open Tree of Life: 485137 Plant List: tro-50075280...