Brand: Bell & Howell
Model:TDC Stereotone 130
Country of Manufacture:USA
Release dates:1954 - 1957
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(all 3 dB): 7½ ips: 50Hz - 10kHz
Wow and Flutter:less than 0.2% at 7½ ips
Signal-to-Noise Ratio:better than 36dB
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
Manufactured by the Three Dimension Company, a division of Bell & Howell, the TDC Stereotone was considered to be one of the better medium-priced semi-professional recorders of the mid 1950s, offering upright operation for the first time in this price range.
A pair of 6AQ5 valves drove the push-pull output stage of 8 watts into a 10″ round speaker. This fairly high level, low distortion audio output provided sufficient volume for an audience of 50 – 75 making it ideal for the classroom or auditorium.
The speaker was mounted into the rear panel of the recorder case which swung upwards to allow forward projection. The front of the case dropped down like a roll-top desk giving the entire unit a very compact and efficient appearance.
Total harmonic distortion: less than 3% at half rated output / Valve complement: 7 in total with two 6AQ7’s in push / pull output / Rewind speed: 1200ft in 40 seconds / Audio output power: 8 watts / Inputs: single front-mounted microphone or radio / phono input / Outputs: external or extension speaker / Speaker(s): 10″ round / Dimensions: 12½ x 15¾ x 7½” (317.5 x 400 x 190.5 mm) / Weight: 32 lbs (14.5 kg) / half-track mono