Country of Manufacture:Germany
Speeds: 3 3/4
Max Reel Size("): 5"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Half-Track
# Motors: 1
Frequency Response:( 3 dB): 50 - 12.5kHz
Wow and Flutter:less than 0.2%
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
Similar to the TK 120, the TK125 was a budget, single speed (3¾ ips), half-track mono recorder with a single two-pole motor, two heads and a 5¾ inch maximum reel size.
The main difference between the two models was with the record mode selector. The TK 120 simply had an automatic/manual switch, whereas the TK125 had selections for automatic speech, automatic music, manual and ‘trick’ (sound-on-sound)
A single mode selector was employed with a record safety interlock.
Rewind speed: 180 sec ( for 1200 ft tape) / Tube complement: EF86, EF83, ECL86, ECC81, EM87 – solid state rectifier / Audio output power: 2½ watts / Inputs: microphone – 2mV. radio / pickup – 80mV / 2.2M.ohms / Speaker(s): elliptical 5¾ x 4¾” / Dimensions: 15.7 x 7.1 x 11.4 inches ( 400 x 290 x 180 mm) / Weight: 18.7 lbs (8.5 kg) / half-track mono