Delta S 627 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
- EFT317 (oscillator-converter), EFT307 (IF), EFT308 (IF), 2 × EFT351 (AF preamplifier and phase inverter), 2 × EFT321 (push-pull output)
- Wavebands
- LW 145–290 kHz, MW 530–1605 kHz, SW 5.8–15.85 MHz
- Sensitivity
- 300 µV/m
- Selectivity
- 20 dB
- Audio frequency response
- 100–2500 Hz
- Output power
- 0.4 W
- Loudspeakers
- 20 Ω, 1.5 VA
- Construction
- printed circuits on a chassis; ferrite antenna (LW, MW), telescopic antenna (SW)
- Power supply
- 9 V (6 × R20 1.5 V cells)
- Dimensions
- 358 × 200 × 170 mm (polystyrene cabinet)
- Weight
- 3.5 kg with batteries
Sources: [1]
Description
The Delta S 627 T is a transistor table radio for long, medium and short waves, put into production by Electronica in 1963 [1]. Its self-oscillating RF stage used the EFT317, the first EFT drift (alloy-diffused) transistor, suitable for the 10.7 MHz FM intermediate frequency and for short waves up to 20 MHz [1]. It was the first Romanian receiver presented in a plastic cabinet, injection-moulded at the works, which was then a technological novelty [1].
The text gives 0.5 W output, the annex 400 mW [1]. A mains version in a wooden cabinet was the Dunărea S 662 TA [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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