File:Grundig TK 1.jpg

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Deutsch: Grundig TK 1, Baujahr 1957, 8cm-Spulen, 2 Spuren, 1 Röhre zur Aussteuerungsanzeige, transistorgeregelter Gleichstrommotor, mittlere Bandgeschwindigkeit 9,5 cm/s, Baujahre 1960-1962, damaliger Preis 265 DM
English: TK1 tape recorder by Grundig.
The transistorized Grundig TK1 was manufactured in 1960-1963, as a portable, battery-powered entry-level tape recorder - alongside with the "serious" all-tube, mains-powered TK25/TK30..etc line. The TK1 weighed merely two kilograms (without batteries). Single speed 9.5 cm/s, around 15 minutes playback from the tiny reels. The TK1 had seven semiconductor devices and one subminiature vacuum tube - the DM71 "magic eye" indicator. The high voltage for the tube was generated via a winding of the bias/erase oscillator (sort of a "free" DC-DC converter). The batteries were strictly low-voltage, 6V for the electronics and 3V for the motor.
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Source Own work
Author Norbert Schnitzler

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Public domain This work has been released into the public domain by its author, I, Timo Beil. This applies worldwide.
In some countries this may not be legally possible; if so:
I, Timo Beil grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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current01:34, 15 June 2007Thumbnail for version as of 01:34, 15 June 20071,000 × 892 (155 KB)Timo Beil (talk | contribs){{Information| |Description={{de|Grundig TK 1, Baujahr 1957}} |Source=own work |Date={{de|Samstag, 6. August 2005 17:20}} {{en|6th august 2005 or august 6th, 2005}} |Author=Norbert Schnitzler |Permission= |other_versions= }} [[Category

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