Technical Details
Brand: Grundig
Model:TK 745
Category:Mid High Fidelity
Application:Consumer
Electronics:Solid State
Country of Manufacture:Germany
Release dates:1974 - 1978
Tracks:1/4 Rec/PB+1/2PB
Speeds: 1 7/8, 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Stereo
Voltage(s): 220-240v
Frequency Response:( 3dB): 7½ ips: 30Hz - 18kHz 3¾ ips: 30Hz - 15kHz 1 ips: 30Hz - 8kHz
Wow and Flutter:7½ ips: less than 0.1%. 3¾ ips: less than 0.15%. 1 ips: less than 0.25%
Signal-to-Noise Ratio:7½ ips: greater than 52dB 3¾ ips: greater than 50dB 1 ips: greater than 45dB
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
Additional Details
Description
Grundig called this 4-track, 3-head Hi-Fi Stereo recorder “the finest model they have ever made”. Its performance reportedly exceeded the German Hi-Fi standard for tape recorders. Two built-in speakers were driven by a four watt per channel amplifier and light-touch servo buttons controlled Start, Stop, Pause, Record, FastForward and Rewind functions. ‘Cursor’ sliders were provided for Volume, Tone, Mixing/Multiplay and Manual Recording level adjustment (although there was a built-in automatic record level circuit). Slider switched enabled Echo Effect, Synchronous Play (for making a second recording in synchronisation with an existing one on another track), manual recording and automatic level recording.
Other features included a 4-digit position indicator, end-of-tape auto stop, a single VU meter (why couldn’t there have been two?) and an input selector.
Additional Info
Audio output power: 2 x 7 watts / Inputs: phono: 100mV – 10V / 1M-ohm microphone: 1-100mV / 100K-ohm radio / diode: 3-300mV / 32K-ohm / Outputs: line: 500mV / 8K-ohm / Speaker(s): two internal elliptical 7½ x 3½ ” / Dimensions: 20 x 12 x 6″ (508mm x 305mm x 152mm) / Weight: 26½ lbs (12kg) / quarter-track stereo