- Country
- United States of America (USA)
- Manufacturer / Brand
- Philco, Philadelphia Stg. Batt. Co.; USA
- Year
- 1936
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 51117
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- Superhet with RF-stage; ZF/IF 460 kHz
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast plus 2 Short Wave bands.
- Power type and voltage
- Alternating Current supply (AC) / 115 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Power out
- 7 W (unknown quality)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 645B - Philco, Philadelphia Stg. Batt
- Shape
- Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
- Notes
-
The Philco model 645 series (1936) is a follow-on to the 640 series (1935) and uses a 7-tube 3-band chassis with shadow meter (tuning aid). The bands covered are BC, 1.75-5.8 MHz, and 5.75-18 MHz.
There are two individual models with different cabinet styles. Model 645B is a simple rectangular tombstone with rounded upper corners. Model 645K is a floor-type console with a slightly tapered (trapezoidal) profile.
The model 37-640 series (1936-37) is electrically very similar, although the latter series has updated tubes and different band coverage.Stein mentions this model as a two bands radio.
- Price in first year of sale
- 70.00 $
- External source of data
- Ernst Erb
- Source of data
- Philco Radio 1928-1942
- Circuit diagram reference
- Rider's Perpetual, Volume 7 = 1936 and before
- Mentioned in
- Cathedral & Tombstone Radios (page 196.)
- Other Models
-
Here you find 4008 models, 2208 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