Sigma 1
Electronica
- Manufacturer
- Electronica
- Country
- Romania
- Year
- Unknown
- Category
- Audio
- Type
- Headphones
- Documentation score
- 1/5
- Last edited
- 03 OCT 2026
Specifications
- Output power
- 0.5 VA
- Impedance
- 8 or 16 Ω
- Dimensions
- 200 × 190 × 100 mm
- Weight
- 0.32 kg
Sources: [1]
Description
The Sigma 1 is a pair of stereo headphones made by Electronica in Bucharest [1]. Its factory code is P 23097 [1]. The other model was the Sigma 2 [1].
From 1955 all Romanian radios and television sets had loudspeakers made in Romania, at Radio Popular and then Electronica; more than 20 million were made [1]. In 1989 the works could make, to order, 18 types of circular loudspeakers (from 0.2 W subminiature types to 10 W), 11 elliptical types, 28 types for outdoor use (megaphones, loudhailers, horn loudspeakers), 6 types of speaker enclosures, 2 types of headphones and 6 types of sonospheres [1]. Membrane technology was much improved after a Philips licence was bought in 1968 [1].
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