Electronica S 631 T
Electronica · 1963
- Manufacturer
- Electronica
- Country
- Romania
- Year
- 1963
- Decade
- 1960s
- Category
- Radio
- Type
- Radio receivers
- Documentation score
- 2/5
- Last edited
- 03 OCT 2026
Specifications
- Transistors
- SA102 (EFT319) (oscillator-converter), SA102 (EFT319) (IF), SA101 (EFT319) (IF), SB171 (EFT352/353) (AF preamplifier and phase inverter), 2 × SB176 (EFT323) (push-pull output)
- Wavebands
- LW 140–310 kHz, MW 540–1630 kHz
- Sensitivity
- 700 µV/m
- Selectivity
- 14 dB
- Output power
- 0.1 W
- Loudspeakers
- circular, 8 Ω, 0.3 VA
- Inputs / outputs
- earphone jack, external antenna terminal
- Construction
- miniature parts on a single printed-circuit board
- Power supply
- 6 V (4 × 1.5 V batteries)
- Power consumption
- 12 mA without signal, 67 mA at maximum output
- Dimensions
- 142 × 88 × 40 mm
- Weight
- 0.27 kg
Sources: [1]
Description
The Electronica S 631 T is a small portable transistor radio for long and medium waves made by Electronica in Bucharest [1]. The text says that a pocket radio with six transistors and a miniature Ticonal loudspeaker was made in two versions with kits from the Japanese firm Matsushita, and lists the S 632 T and S 631 T among the sets launched in the same period; about 300,000 pocket radios were made in 1960–1965 [1]. For the S 631 T the text gives 150 mW output, a 6 V supply (4 × 1.5 V R12 cells), 270 g and 142 × 88 × 40 mm; the annex gives 100 mW [1]. A similar set was the Zefir S 631 TN2 [1].
In the source table, sensitivity is given on medium waves for 50 mW output, selectivity for a signal ±9 kHz away, and output power at 10% distortion [1].
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