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Technics SL-B21

Semi-Automatic Belt-Drive Turntable System

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technics sl-b21 turntable
Technics SL-B21


The Technics SL-B21 is a belt driven turntable featuring a statically balanced, straight tonearm with T4P type plug in cartridge.

The platter begins rotating as the arm is moved towards the record and there is an adjustable end-of-record return position.

A 45rpm adaptor is included for playback of single records with the jukebox type, large centre hole.


Platter: 304mm aluminium die-cast

Wow and flutter: 0.045% WRMS

Rumble: -70dB

Tonearm type: straight, static balanced

Effective length: 230mm

Dimensions: 430 x 106 x 375mm

Weight: 4.2kg


service manual  English

instruction/owners manual  English

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Technics Belt Drive Turntables

Technics SL-B21 / SLB21 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Technics.


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