- Country
 - United States of America (USA)
 
- Manufacturer / Brand
 - Philco, Philadelphia Stg. Batt. Co.; USA
 
- Year
 - 1930
 
- Category
 - Broadcast Receiver - or past WW2 Tuner
 
- Radiomuseum.org ID
 - 51154
 
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
 - 7
 
- Main principle
 - TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
 
- Tuned circuits
 - 4 AM circuit(s)
 
- Wave bands
 - Broadcast only (MW).
 
- Power type and voltage
 - Alternating Current supply (AC) / 115 Volt
 
- Loudspeaker
 - Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
 
- Material
 - Metal case
 
- from Radiomuseum.org
 - Model: 77 Table - Philco, Philadelphia Stg. Batt
 
- Shape
 - Tablemodel, Box - most often with Lid (NOT slant panel).
 
- Notes
 - Model 77 was available in a table, a console (actually small highboy), and a lowboy cabinet. Model 77A is similar, but with minor circuitry changes. One dial (primary tuning control knob).
 
- Price in first year of sale
 - 85.00 $
 
- External source of data
 - Ernst Erb
 
- Source of data
 - Radio Collector`s Guide 1921-1932
 
- Circuit diagram reference
 - Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
 
- Mentioned in
 - Philco Radio 1928-1942
 
- Literature/Schematics (1)
 - Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data
 
- Other Models
 - 
        
Here you find 4126 models, 2231 with images and 3774 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA