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Alfa 2
Electronica
- Manufacturer
- Electronica
- Country
- Romania
- Year
- Unknown
- Category
- Radio
- Type
- Radio receivers
- Documentation score
- 1/5
- Last edited
- 03 OCT 2026
Specifications
- Transistors
- 8 transistors + 2 diodes
- Wavebands
- MW 525–1605 kHz, SW 5.9–12 MHz
- Sensitivity
- 2 mV/m (ferrite antenna)
- Selectivity
- 16 dB
- IF rejection
- 15 dB
- Image rejection
- 15 dB
- Audio frequency response
- 300–2500 Hz
- Output power
- 0.15 W
- Loudspeakers
- 7 Ω, 0.5 VA
- Construction
- printed circuit; miniature parts
- Power supply
- 4.5 V (3 × R20 cells)
- Power consumption
- 18 mA without signal, 80 mA at nominal output
- Dimensions
- 160 × 100 × 40 mm (polystyrene case)
- Weight
- 0.5 kg
Sources: [1]
Description
The Alfa 2 is a pocket transistor radio for medium and short waves made by Electronica in Bucharest, with the same circuit and characteristics as the Alfa 1 S 711 T and a differently decorated case [1].
Tehnoton in Iași also made it in 1974–1977 [2].
In the source table, sensitivity is given on medium waves for 50 mW output and a 20 dB signal-to-noise ratio, selectivity for a signal ±9 kHz (AM) or ±300 kHz (FM) away, and output power at no more than 10% distortion [1].
Gallery
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Schematics
No schematics available yet.
Documents
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References
- [1]D. F. Lăzăroiu, N. Millea et al. – „Electronica românească. O istorie trăită”, vol. I, AGIR, section II.4 „Uzinele Electronica, 1966–1981”, annex II.4.2 „Radioreceptoare cu tranzistoare”, pp. 184–188
- [2]D. F. Lăzăroiu, N. Millea et al. – „Electronica românească. O istorie trăită”, vol. I, AGIR, section III.1 „Întreprinderea Tehnoton – Iași”, pp. 305–306, annex III.1.1 „Radioreceptoare produse de Tehnoton”, pp. 308–311