Neptun 1 S 701 T
Electronica · 1970
- Manufacturer
- Electronica
- Country
- Romania
- Year
- 1970
- Decade
- 1970s
- Category
- Radio
- Type
- Radio receivers
- Documentation score
- 2/5
- Last edited
- 03 OCT 2026
Specifications
- Transistors
- 11 transistors, 5 diodes, 1 thermistor (silicon planar transistors from IPRS)
- Wavebands
- LW 150–300 kHz, MW 525–1605 kHz, SW 5.9–18 MHz, FM 65–73 MHz (export: FM to CCIR standard)
- Sensitivity
- 1.5 mV/m
- Selectivity
- 26 dB (AM, FM)
- IF rejection
- AM 20 dB, FM 40 dB
- Image rejection
- 26 dB (AM, FM)
- Audio frequency response
- AM 125–2500 Hz, FM 125–6300 Hz
- Output power
- 1 W
- Loudspeakers
- 3 Ω, 3 VA
- Inputs / outputs
- ferrite antenna, 680 mm telescopic antenna; earphone, pick-up and tape recorder sockets
- Design / kits
- Romanian design
- Power supply
- 7.5 V (5 × R20 cells)
- Power consumption
- 30 mA without signal
- Dimensions
- 282 × 190 × 70 mm
- Weight
- 2.1 kg
Sources: [1]
Description
The Neptun 1 S 701 T is a portable AM-FM transistor radio made by Electronica in Bucharest from 1970 [1]. The Neptun family was designed from 1969 by Teodor Bădărău, with a circuit superior to that of the Mamaia, completely integrated (all parts made in Romania) and equipped with silicon planar transistors made at IPRS Băneasa [1]. It had a number of miniaturised parts, such as the FM IF filter, and a cabinet assembled from three injection-moulded parts [1].
The Neptun 2, the Neptun CCIR and the export model Concord have similar circuits [1].
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
No other images available yet.
Schematics
No schematics available yet.
Documents
No documents available yet.