Grundig TK-245 (ca. 1968)
The Grundig TK-245 is a transistorized quarter-track stereo tape recorder with a single-channel power amplifier and a built-in speaker. It works as a deck or as a standalone playback machine. It sold for $239.95 in a walnut cabinet, as listed in a 1968 equipment directory (HiFI-Stereo, 1968, p.68).
A contemporary review in Studio-Sound (March 1968, p.38) published the full manufacturer’s specification. The TK-245 runs at 7½ and 3¾ ips (19.1 and 9.5 cm/s), with wow and flutter rated at ±0.12% and ±0.15% respectively to DIN 45511. Frequency response is given as 50 Hz–16 kHz at the higher speed and 50 Hz–12.5 kHz at the lower. Inputs cover microphone (2–40 mV at 1 MΩ), radio (4–80 mV at 44 kΩ), and phono (90–1,800 mV at 1 MΩ); line output is 1 V at 22 kΩ, and the internal amplifier delivers 4 W into 15 Ω. The recorder measures 16 × 13 × 7½ inches (40.8 × 33.2 × 19.1 cm) and weighs about 30 lb. Switchable AGC is also noted.
Little else is documented about the TK-245's place in the Grundig lineup or its production run. The review is brief and the record is thin. The specs show a middle-tier German tape machine of the late 1960s, built to DIN standards and sold at a competitive price in the American market.
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