Country of Manufacture:Germany
Speeds: 1 7/8, 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: 60Hz - 18kHz
Wow and Flutter:0.1% at 7½ ips, 0.12% at 3 ¾ ips, 0.2% at 1 ips
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The TK40 was a quarter-track mono recorder with three speeds and a 7″ reel capacity.
Features included tape inching, Cine-socket, built-in tape cleaner, automatic stop, remote control, mixing facilities, synchronous recordings and superimposition (sound-on-sound).
Output through the internal mono amplifier was 2.5 watts. With the addition of an external amplifier and speaker, stereo playback of pre-recorded tapes could be achieved.
Price when new (UK) was £78 15s.
Valve complement: EF86, ECC81, 2 x EL95, EM84 / Rewind speed: 2 minutes 40 seconds for 1800ft tape / Audio output power: 2.5 watts / Outputs: line and extension speaker / Speaker(s): internal 6″ x 4″ elliptical / Dimensions: 15 x 7.7 x 16.1 inches (380 x 195 x 410 mm) / Weight: 27½ lbs (12.5 kg) / quarter- track mono