Crystal detector made by the company ALLM. TEL. A-B. L.M. ERICSSON in Stockholm Sweden.
The crystal detector is in new condition and is in its original box (96 years old).
Inside the box is the nearly 100-year-old original manual.
The manual is also stamped by the Swedish seller: Nils. A. Janzelius Kungsholmsstrand 143 STOCKHOLM
The detector also comes with the headphones purchased at the time: marked with Radiola (2000 ohms).
The same type of crystal receiver is depicted in the magazine Radio no. 19 1927 and also in ASEA's catalogue of radio material 1926.
Main principle: Crystal detector, 1 circuit (no radio tubes)
Tuned circuits: 1 AM circuit
Wavelength: MW 600-800 meter
Power supply: No supply voltage needed
Speaker: Only via headphones
Material: wood, Bakelite and glass
Dimensions: Diameter: 160 mm
Height: 90 mm
Price on introduction in 1926: 25.00 SEK (Swedish Krona)
- Type PF 102
- Multiple Models
- Type of Equipment
- Nr of items
- + Extra item (see description), Box, Original user manual
- Serial Number
- Year of Manufacturing
- 1 kg
- Tested and working
- Tested and working/playable