Country of Manufacture:Switzerland
Release dates:1953 - 1956
Speeds: 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:( 2 dB): 7½ ips: 50 to 10kHz
Wow and Flutter:0.3% at 7½ ips
Signal-to-Noise Ratio:better than 50 dB
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
An all temperature, all climate professional recorder from Switzerland, the Nagra II was a spring-motor driven, single speed (7½ ips) machine with battery-operated tube electronics. Battery life was approximately
Features included a volume indicator meter, small monitor speaker for playback, high-frequency stabilized, push-pull bias and erase circuits and a spring-tension panel meter to indicate wind-up status (one winding provided 5 minutes record/playback).
Speed constant: 0.3% average / Power supply: external, voltage unknown / Outputs: high impedance plus 50 ohms and 5 ohms / Speaker: small internal monitor speaker / Weight: 11.8 lbs (5.4 kg) / full-track mono