Technics SL-B20 (1982)
A belt-drive automatic turntable from Technics with pitch adjustment and auto-return functionality.
Overview
The Technics SL-B20 is an automatic turntable produced in 1982. It uses a belt-drive system with a frequency generator servo mechanism for speed stability. Designed for ease of use, it supports both 33.3 and 45 RPM records and features auto-return operation after playback. The turntable includes a P-mount cartridge, with the Audio-Technica AT112EP being one example found installed. It also offers pitch adjustment for speed tuning, a feature appreciated by users for maintaining consistent playback.
Specifications
| Drive type | Belt Drive |
| Speeds | 33.3 and 45rpm |
| Features | Pitch adjustment, Auto Return |
| Cartridge mount | P-mount |
| Included cartridge | Audio-Technica model AT112EP |
Design
The SL-B20 uses a frequency generator servo system to regulate motor speed, contributing to stable playback performance. As an automatic belt-drive turntable, it lowers the tonearm at the start of the record and returns it to rest when playback ends.
Context
One long-term owner reported using the SL-B20 for 40 years without issues, rating it 10/10 and calling it "a great turntable." It has been described in online discussions as one of the best turntables for beginners and remains listed on second-hand markets like HiFi Shark and eBay, sometimes noted as rare.
Market
Common maintenance includes replacing the belt and stylus over time. Example listings show units sold as working, with some labeled as rare collectible items.
eBay Listings
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