Technical Details
Brand: Grundig
Model:TK 248
Category:Mid High Fidelity
Application:Consumer
Electronics:Solid State
Equalization:NAB
Country of Manufacture:Germany
Release dates:1970 - 1974
Original Price: $158
Tracks:1/4 Rec/PB
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Dimension: 17 x 14 x 6½ " (430 x 360 x 165mm)
Head Composition: Permalloy
Head Configuration: Stereo
# Motors: 1
Auto Reverse?:No
Voltage(s): 110-120v, 220-240v
Frequency Response:( 3dB): 7½ ips: 40Hz - 16kHz 3¾ ips: 40Hz - 12.5kHz
Wow and Flutter:±0.15% at 7½ and ±0.2% at 3¾ ips
Signal-to-Noise Ratio:better than 50dB
Sound quality rating:6 / 10
Long-term reliability rating: 7/ 10
Weight: 27½ lb (12.5 kg)
Additional Details
Description
Top of the 1970 Grundig range for 1970, the TK 248 was solid state, 4-track stereo recorder, designed to meet DIN 45500 standards. The 248 Hi-Fi was a two-speed (7½ and 3¾ ips) machine allowing either vertical or horizontal operation and had a seven inch reel capacity. Three heads were incorporated into the design,
permitting echo and multi-play effects. Other features included automatic recording level and auto-stop. Audio output was 4 watts per channel into two 7 x 3¼ inch bass and two 5 x 3 inch treble internal speakers.
A user manual for this recorder is supplied on the Get Reel Vintage CD-ROM.
Additional Info
Year 1970
Price when new (in the UK) £158s
Heads Three
Motors One
Maximum reel size 7″
Tape speeds 7½ and 3¾ ips
Frequency response ( 3dB)
7½ ips: 40Hz – 16kHz
3¾ ips: 40Hz – 12.5kHz
Wow & flutter ±0.15% at 7½ and ±0.2% at 3¾ ips
Signal to noise ratio 50dB
Semi-conductors 17 silicon and 4 germanium transistors, 9 silicon and 4 Zener diodes,1 FET
Rewind speed 330 seconds for 2400 ft tape on 7″ reel
Audio output power 2 x 4 watts into 4 ohms
Inputs microphone: 100mV / 100K-ohm; radio: 100mV / 33K-ohm;phono: 50 – 5000mV /1.5 M-ohm
Outputs line: 500mV / 27 kohm
Speaker(s) two 7 x 3¼ ” bass and two 5 x 3″ treble internal speakers
Dimensions 17 x 14 x 6½ ” (430 x 360 x 165mm)
Weight 27½ lb (12.5 kg)