Stellavox SM 4
Stellavox
Switzerland
Tape Deck Details
Number of Motors
Number of Heads
Head Configuration
Wow & Flutter
Signal-to-Noise [dB]
Dimensions [mm]
Weight [kg]
1.8
Year built
1958–1959
Head Composition
Equalization
IEC
Frequency Response
30 Hz to 14 kHz at 7½ ips
Speed
7½
Max Reel [inch]
7
Tracks
Price
Additional Information
The Stellavox SM4 is a portable reel-to-reel tape deck introduced around 1958–1959, notable for being one of Stellavox’s early transistorized models.
Technical Overview of Stellavox SM4:
Year: Circa 1958–1959
Type: Portable reel-to-reel tape recorder
Electronics: Solid-state, with 7 transistors
Power Supply: Battery-operated (4 x 8.2 V storage batteries)
Tape Speed: 19.05 cm/s (7½ inches per second)
Frequency Response: Approximately 30 Hz to 14 kHz at 19.05 cm/s
Dimensions: 260 x 60 x 120 mm (10.2 x 2.4 x 4.7 inches)
Weight: About 1.8 kg (3 lb 15 oz)
Tape Width: Standard ¼ inch (6.35 mm) tape
Reel Size: Typically supports up to 7-inch reels
Loudspeaker: Built-in permanent magnet dynamic loudspeaker
Inputs/Outputs: Microphone and headphone jacks
Construction: Leather, canvas, and plastic casing over metal chassis
Equalization: IEC standard
Notable Features: Compact size, portability, and solid-state reliability for the period