TH-14 Transitone
Philco, Philadelphia Stg. Batt. Co.; USA
- Country
- United States of America (USA)
- Manufacturer / Brand
- Philco, Philadelphia Stg. Batt. Co.; USA
- Year
- 1939/1940
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 51579
Front
Philco TH-14 label
Top of TH-14
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- AC/DC-set / 115 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: TH-14 Transitone - Philco, Philadelphia Stg. Batt
- Shape
- Tablemodel without push buttons, Mantel/Midget/Compact up to 14
- Notes
-
The Philco models TH-14 and model TH-16 are similar, except for the cabinets. Number made: 9,020
- Price in first year of sale
- 18.00 $
- External source of data
- Ernst Erb
- Source of data
- The Radio Collector's Directory and Price Guide 1921 - 1965
- Circuit diagram reference
- Rider's Perpetual, Volume 12 = ca. 1941 and before
- Mentioned in
- Philco Radio 1928-1942
- Literature/Schematics (1)
- Philco 1940 RMS Yearbook
- Literature/Schematics (2)
- Machine Age to Jet Age II (page 224.)
- Literature/Schematics (3)
- Philco Folder PR-738, 1938-1940.
- Other Models
-
Here you find 4006 models, 2205 with images and 3656 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA
Collections
The model TH-14 is part of the collections of the following members.
Forum contributions about this model: Philco, Philadelphia: TH-14 Transitone
Threads: 1 | Posts: 5
Hello, dear Radio Collectors! Here's a new mystery - I'm working on a Philco TH-14 Transitone. I replaced all the capacitors and all the rotten rubber insulated wiring. I applied power and got nothing, not even a hum in the speaker at any volume level. Here's the details so far:
B+ = 146 v.
Audio output tube (35A5):
grid, pin 6, normal audio waveform that varies with the tuning capacitor
plate, pin 2, 146 v. DC, zero AC (shouldn't I see an AC waveform here?)
130 ohm R21 measures 144 ohms.
Audio output transformer primary: 183.8 ohms
Across speaker terminals: 1.8 ohms
C22 (which I just replaced anyway) is OK
I tried a different output tube with the same results.
Does anyone have an idea what might be wrong or how to proceed from here?
Also, can someone tell me what the notations on the schematic by the speaker mean? They look like "V.E." and "D.C.", but I have no idea what they mean there.
Thanks / danke sehr!
Michele Denber, 19.Apr.09