Country of Manufacture:Germany
Release dates: -
Speeds: 7 1/2, 15
Max Reel Size("): 10.5"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Stereo - Stacked
# Motors: 3
Frequency Response:(all 2 dB): 15 ips: 40Hz - 15kHz
Wow and Flutter:
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
From the German documentation I managed to find
a date on the circuit diagram (1957) and the following info.
Two models were available – the Magnetophon T9A which had speeds of 15 ips and 7½ ips, and the T9U which played at 30 ips & 15 ips. Frequency response was quoted at 40Hz – 15kHz at 15 ips and 40Hz – 10kHz at 7½ ips and three motors were used in the transport.
Dimensions: 35 x 31½ x 21½ inches (900 x 800 x 550 mm) / Weight: 63½ pounds (140 kg) /