Model:Sabafon TK 230-S
Country of Manufacture:Germany
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Stereo
# Motors: 1
Frequency Response:(all 3 dB): 7½ ips: 40 to 20kHz
Wow and Flutter:±0.15 per cent at 7½ ips. ±0.25 per cent at 3¾ ips
Signal-to-Noise Ratio:48 dB
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The TK230-S was a totally self-contained stereo tape recorder contained in
a case not much bigger than that of an orthodox mono recorder of the same
period. The economy of space was achieved mainly by the use of transistors
in the input stages and double/triple purposes tubes in the intermediate
and output stages. A single heavy-duty motor provided all transport functions.
The TK230-S had two tape speeds (7½ & 3¾ ips) and 7″ inch reels could be accommodated.
Other features included rotating outer tape guides, a felt tape-cleaning pad which was activated during rewind and a pressure-operated auto-stop.
Semiconductor complement: tubes: 3 x ECC83. ELL80. EM84a tubes. transistors: 2 x AC107. rectifiers: B250C100. B30C600. 2 x E25C7 / Audio output power: 5 watts per channel, ten watts mono / Inputs: microphone (0.1 mV / 200 ohms). radio (10 mV / 100 Kohms). pick-up (200 mV / 1 Mohm). / Outputs: line level(1V). external speakers (4-6 ohms), headphones (1,000 ohms) / Erase attenuation: 65dB / Fast wind time: 5 minutes / 2,400ft / Speaker(s): two 6 x 3 ¾” elliptical speakers / Dimensions: 16¾ x 14½ x 7½ (4251 x 368 x 191 mm) / Weight: 30 lbs (13.64 kg) / : / quarter-track stereo