Thorens TD 104 (1977–1981)

A belt-drive manual turntable with sensor-button operation and an ultralight tonearm, produced from 1977 to 1981.

Overview

The Thorens TD 104 is a vintage hi-fi turntable made by Thorens between 1977 and 1981. It features a belt-drive system, a DC motor, and manual operation with three selectable speeds. One of its distinctive features is the use of sensor buttons for drive operation, replacing traditional mechanical switches. The turntable includes the DiscTraker and Isotrack plug-in accessories. It shares its lineage with the Thorens TD 104 MK II, though the original TD 104 stands as a separate model in the series.

Specifications

Production years	1977–1981
Drive method	belt drive
Motor type	DC motor
Speeds	3 speeds
Control type	manual operation
Includes	DiscTraker, Isotrack plug-in
Tonearm	ultralight tonearm
Dimensions	43x35.5x13 cm

Design

Drive operation is handled via sensor buttons, a notable design choice for its time that replaced conventional mechanical controls.

Context

The Thorens TD 104 is part of a series that includes the Thorens TD 104 MK II, indicating a direct product evolution within Thorens' turntable lineup.

Market

Listed as a rare vintage hi-fi turntable, recent market prices include €210, €150, and SEK 500 in April 2026. Common issues reported include the platter continuing to turn after stop is selected, slow startup, and noisy spindle operation. Maintenance often involves cleaning speed switch contacts and inspecting capacitors like C113 for motor power issues.