Hora S 603 B
Electronica · 1960
- Manufacturer
- Electronica
- Country
- Romania
- Year
- 1960
- Decade
- 1960s
- Category
- Radio
- Type
- Radio receivers
- Documentation score
- 2/5
- Last edited
- 03 OCT 2026
Specifications
- Tubes
- DK96, DF96, DAF96, DL96 (miniature D series)
- Wavebands
- LW 150–290 kHz, MW 525–1605 kHz, SW 6–15.6 MHz
- Sensitivity
- 200 µV (MW)
- Selectivity
- 22 dB
- IF rejection
- > 38 dB
- Image rejection
- > 30 dB
- Audio frequency response
- 100–3000 Hz
- Output power
- 0.1 W
- Loudspeakers
- 1 × circular, 4 Ω, 2.5 VA
- Construction
- point-to-point wiring
- Quality class
- III–IV
- Power supply
- batteries: 1.5 V cell (filaments), 90 V (anode)
- Power consumption
- anode 14 mA, filaments 125 mA
Sources: [1]
Description
The Hora S 603 B is a battery-powered tube radio receiver made by Electronica in Bucharest in the first half of the 1960s [1]. It uses four miniature tubes of the low-consumption D series, with the filaments fed from a 1.5 V cell and the anodes from a 90 V battery [1].
In the source table, sensitivity is given on medium waves for 0.5 W output, selectivity for a signal ±9 kHz (AM) or ±300 kHz (FM) away, the audio frequency response at 1 MHz within 6 dB, and output power at no more than 10% distortion; the quality classes are only indicative, based on IEC recommendations and the Soviet GOST 5651/1951, as Romania had no such standard at the time [1].
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