|Year: 1948||Type: Television Receiver (TV) or Monitor|
|Valves / Tubes||27: 6AG5 6AG5 6J6 6AG5 6AG5 6AG5 6AL5 7B6 6AG5 7C5 6AT6 7H7 7H7 6AL5 7B4 7B5 7B5 7F8 6SL7GT 6K6GT 6SL7GT 6BG6G 5V4G 5U4G 5U4G 1B3GT 10BP4|
|Principle||Super-Heterodyne (Super in general); ZF/IF 26600/22100 kHz|
|Wave bands||Wave Bands given in the notes.|
|Power type and voltage||Alternating Current supply (AC) / 105-125 Volt|
|Loudspeaker||Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm|
|Power out||2.5 W (unknown quality)|
|from Radiomuseum.org||Model: 48-1000-5 code 122 - Philco, Philadelphia Stg. Batt|
|Shape||Tablemodel, with any shape - general.|
10" round CRT b/w TV with 12 channel US FCC standard VHF turret tuner, 50 Hz mains power supply model!
The Philco model 48-1000 television was introduced in 1947. It has an 8-channel turret tuner with plug-in coils, so that any 8 of the available channels 1-13 could be selected. A unique design feature is a dual 300 ohm antenna input, intended for separate antennas for the VHF low and VHF high bands.
Three chassis codes were used in the following chronological order: code 121, code 125, and code 122. Codes 121 and 125 are similar, both having 26 tubes. In code 122, the 1N34 crystal diode DC restorer was replaced with a 6AT6 tube, bringing the tube count to 27.
Philco had other TV models with similar chassis. Model 48-1050 was a console version of the 48-1000, with the same three available chassis codes. Model 48-1001 is another table model electrically identical to 48-1000 code 122, but has a simpler cabinet style. Models 48-1000-5, 48-1050-5, and 48-1001-5 have power supplies designed for 50 Hz AC supply, but are otherwise identical to the models without the -5 suffix. Model 48-2500 is a large console projection set with a chassis based on the 48-1000 design, but with several significant changes to support the projection CRT system.
|Price in first year of sale||395.00 $|
|Mentioned in||Photofact Folder, Howard W. SAMS (1/1949 No. 491-17 Set 53 Folder 17)|
|Literature/Schematics (1)||Rider TV Philco 2-42|
Model page created by a member from A. See "Data change" for further contributors.
All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA
Here you find 3474 models, 1884 with images and 2821 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.