Golden Age Of Audio: stereo

Showing posts with label stereo. Show all posts

Tuesday, 19 March 2024

Sony TC-850-2

https://hifi-wiki.com/index.php/Sony_TC-850-2

https://www.radiomuseum.org/r/sony_stereo_tape_deck_tc_850_2.html

https://reel-reel.com/tape-recorder/sony-tc-850/

DESCRIPTION

The TC 850 was a semi-professional three-motor, four head tape deck with a 10½ ” reel capacity.
The recorder could record in half-track stereo, but thanks to the extra playback head, quarter-track stereo playback was possible.
All transport controls were servo-controlled, which resulted in a seamless transition between transport modes. The recorder was considered ‘easy to use’ by reviewers.
This was not a cheap machine, in 1974 it cost almost twice as much as a Revox A77 so it is fairly easy to see why not many were sold.

Number of Transistors
77

Semiconductors

Main principle
Audio-Amplification

Wave bands
- without

Details
Tape Recorder

Power type and voltage
Alternating Current supply (AC)

Loudspeaker
- This model requires external speaker(s).

Material
Various materials

from Radiomuseum.org
Model: Stereo Tape Deck TC-850-2 - Sony Corporation; Tokyo

Shape
Tablemodel, with any shape - general.

Dimensions (WHD)
445 x 501 x 254.5 mm / 17.5 x 19.7 x 10 inch

Notes
Sony Stereo Tape Deck Model TC-850-2.
Track system: 2-track, 2-channel, stereo/monaural system
Heads: 1 x 2T record, 1 x 2/4T playback, 1 x erase
Motor: 3 motors: 1x capstan, 2x reel
Reel size: up to 10.5 inch reel
Tape speeds: 3 Speeds: 3 3⁄4 7 1⁄2 15 ips
Wow and flutter: 0.03% (15 ips)
Frequency response: 20Hz to 30kHz (15 ips)
Signal to Noise Ratio: 59dB
Input: 70mV (line), 0.2mV (mic)
Output: 0.775V (line)
Semiconductors: 77x transistors, 79x diodes

See also:
Sony TC-850-4 (4-Track Version)

Net weight (2.2 lb = 1 kg)
26 kg / 57 lb 4.3 oz (57.269 lb)

Tuesday, 23 January 2018

Thorens TD 124 Vintage Turntable Project With SME 3012R Tonearm And Denon 103R Cartridge

Thorens TD 124 Vintage Turntable Project With SME 3012R Tonearm And Denon 103R Cartridge

AC 4pole induction motor, belt/idler wheel drive, 16, 33, 45 and 78 rpm, mechanically switched, pitch, platter weight 4.5 kg (cast iron) or 3.0 kg (zinc alloy), top platter (aluminium) with clutch, manual operation

Thorens TD 124 Links:

https://www.vinylengine.com/library/thorens/td124.shtml
http://www.soundfountain.com/amb/td124page.html
http://www.analogue-classics.com/html/thorens_td_124.html

Description

A brilliant example of Swiss precision engineering and craftsmanship.

Superbly different, the TD124 offers a host of exclusive features never before achieved in any other turntable, meeting the most exacting demands of broadcasting.

It's durability and performance specifications exceed NAB standards for studio equipment.

In the TD124, Thorens has incorporated many outstanding features that open the way for discriminating music lovers to new and greater enjoyment from their music systems.

The turntable is unmatched for monophonic or stereophonic sound reproduction.

The drive system utilizes an extra compliant belt plus idler wheel to isolate any motor vibration and special shielding of the turntable flywheel, eliminates any induction of stray fields by magnetic pick-up cartridges.