Category:Mid High Fidelity (most Japanese recorders fall into this category)
Country of Manufacture:Austria
Release dates:1961 - 1964
Speeds: 1 7/8
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:400 - 3000 Hz
Wow and Flutter:
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
With a reel diameter of just 42 mm (1.6″), recordings of up to one hour were possible with this very small, hand-held recorder. Four mono tracks were available for recording (there were four head positions and each consecutive position reversed the tape direction). There was no rewind.
A 3-digit number (between 000 & 500) appeared every 6 cm on the back of the tape and was displayed in a small window which facilitated location of program material.
The microphone doubled as the speaker and there was an internal 20 milliwatt amplifier.
The tape speed was rim-drive and varied with an average of 1¼ ips (3.3cm/s).
The battery compartment was designed for two batteries – A 1.5 motor battery sat below the 9V amplifier battery (visible in the right hand corner in picture at left)
Input impedance: 3000Ω / Input sensitivity: 0.3mV / Output: 20 mW / Output impedance: 24Ω / Semiconductors: 2 x OC 75, 1 x OC 72 / Batteries: motor: 1.5 penlight. amplifier: 9V / Dimensions: 4½ x 3¾ x 1½ inches (116 x 80 x 36mm) / Total weight (incl. batteries): 12oz (340 g) / four-track mono