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Sound Rating: 3 / 10 # Owners: 1
Relaibility Rating: 7 / 10 Views: 190

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Technical Details

Brand: Grundig

Model:TK 820 “Specialist”

Category:Vintage

Application:Portable

Electronic:Tube

Country of Manufacture:Germany

Release dates:1955 - 1958

Tracks:1/2 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors: 1

Auto Reverse?:No

Voltage(s): 220-240v

Frequency Response:( 3 dB): 7½ ips: 40Hz - 14kHz

Wow and Flutter:

Signal-to-Noise Ratio:

Sound quality rating:3 / 10

Long-term reliability rating: 7 / 10

Additional Details

Description

From the 1955 service manual:
The “Specialist” TK 820 is a portable Tape Recorder capable of recording on 1/4″ magnetic tape.  The
machine is a dual track recorder and is able to record and play back in both directions.  It operates at the two tape speeds of  3¾ ips and 7½ ips.  The Electro-Magnetic change over from track one to track 2 position takes less than one second at 3¾ ips and four seconds at 7½ ips.
Drive is obtained from a split phase induction motor. Input selection selection is made by means of a three-position switch.

Additional Info

Valve complement: EF 86, ECC 81, EL 84, EL 43, EM 71 / Rewind speed: approximately 1½  minutes / Speaker(s): three speakers built into cabinet / Dimensions: 17 x 17½ x 9½” (432 x 444.5 x 241.5 mm) / Weight: approx 46 lbs (21 kg) / half-track mono

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