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Robuk RK4

Three Speed Tape Recorder

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Robuk RK4


Ten years' experience in the manufacture of recording equipment has resulted in the production of the Robuk Tape Recorders.

They combine many of the facilities and standard of performance generally found on only very expensive machines, with the utter simplicity of operation that will enable any member of the family to achieve satisfactory recordings.


Track system: 2-track, single channel, monaural system

Heads: 1 x record/play, 1 x erase

Motor: 2 x reel, 1 x capstan

Reel size: up to 7 inch reel

Tape speeds: 1 78  3 34  7 12 ips

Wow and flutter: 0.2% (7 12 ips)

Frequency response: 60Hz to 14kHz (7 12 ips)

Signal to Noise Ratio: 40dB

Output power: 2.5 watts

Dimensions: 16 x 12 x 8 inches

Weight: 24lbs

Year: 1962


instruction/owners manual   English - Allister Hadden

circuit and mechanism layout data   English - Allister Hadden

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re: RK4

This was my very first tape recorder. I used it so much I wore out the heads. I quickly learnt how to hand lap them to extend their life.

This website is not affiliated with or sponsored by Robuk. To purchase RK4 spares or accessories, please contact the company via their website or visit an authorised retailer.