Country of Manufacture:USA
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: 40Hz - 15kHz
Wow and Flutter:less than 0.3 % at 7½ ips
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
Made by the Wollensak Optical Co., Chicago 16, Ill. First introduced in 1957, this durable and distinctive design remained with Wollensak right through to the mid-sixties with transistors eventually replacing the traditional tube design. (model 1500SS). The 1500 was a portable, half-track, two speed recorder with an interlocked push-button keyboard control.It contained a four-tube push-pull amplifier coupled with a 6″ x9″ twin cone speaker and sold for $189.50 (US).
Other features: Dual level record indicator, revolution index counter, instant stop lever, automatic drive roller release when power switch is off, preamplifier output for hi-fi system, built-in automatic head demagnetization and optional remote foot control. The recorder was also available in a four-track stereo version, the T-1515-4
(pictured below) with a stereo head and built-in second preamplifier which was intended to be used in conjunction with a matching 10-10 amplifier/speaker unit.
Overall distortion: less than 0.8% / Rewind speed: 150″ per second / Audio output power: 10 watts push-pull (from a four-tube amplifier) / Speaker(s): 6″ x 9″ twin cone speaker / Dimensions: 6½ x 10¼ x 11¾” (165 x 260 x 298 mm) / Weight: 21 lbs (8.2 kg) / half-track mono (T1500) quarter-track stereo (T1515-4)