Technics SL-3
¥ 34,800 (around 1982)
Commentary
A linear tracking player with LP jacket size compact body and Technics player technology.
The arm uses a linear tracking arm that linearly moves the record board.
By means of an optical sensor arm deflection angle detection mechanism near the needle tip and microcomputer control, the tracking error angle is within ± 0.1 ° and the inside force is almost 0, achieving excellent running performance.
In addition, the arm bearing structure is a 4-point support gimbal suspension system with a pivot and ball bearing, and a dynamic balance system in which the center of gravity is aligned with the center of the arm rotation axis, realizing stable trace running without precise horizontal adjustment or needle pressure adjustment.
The cartridge uses the plug-in connector type MM cartridge, which is also used for the SL-6. In addition to the ease of installation, the accuracy of installation is improved and performance matching between the cartridge and the arm is achieved.
DC servo belt drive system is adopted for the drive part.
It is an electronically controlled full-auto type with all operations concentrated into 4 buttons. All operations can be performed with the upper cabinet closed. The rotation speed is automatically set according to the record size just by pressing the start button.
In addition, the arm can be controlled to move forward or backward, and it can be played repeatedly with the repeat button.
After the performance, the arm returns automatically.
Model Rating
Type | DC servo full-auto player system |
<Turntable portion> | |
Drive system | DC servo belt drive |
Turntable | Aluminum die-cast, diameter 30 cm |
Number of revolutions | 33 1/3, 45 rpm Auto Select (manual available) |
Wow and flutter | 0.045%W.R.M.S.(JIS C5521) ± 0.06% Weighted zero to peak (DIN 45507, IEC98A weighted) |
Signal-to-noise ratio | 70dB DIN-B(IEC98A weighted) 45dB DIN-A(IEC98A unweighted) |
Tone Arm Section | |
Format | Dynamic balance type linear tracking arm Gimbal suspension bearing structure |
Effective arm length | 105mm |
Tracking error angle | Within ± 0.1 ° |
Arm effective mass | 9g (including cartridge) |
Arm resonance frequency | 12Hz |
Arm drive motor | DC Motor |
Cartridge Section | |
Format | Plug-in connector MM type stereo cartridge |
Magnetic circuit | All-laminated core |
Frequency characteristic | 10 Hz to 30 kHz 20 Hz to 10 kHz ± 1 dB |
Output voltage | 2.5 mv (1 khz, 5cm/sec, zero to peak, horizontal speed) 3.5 mv (1 khz, 5cm/sec, zero to peak, 45 ° speed) |
Channel separation | 22 dB or More (1 kHz) |
Channel balance | Within 2 dB (1 kHz) |
Compliance | 12x10-6cm/dyne(100Hz) |
Recommended load resistance | 47k Ω ~ 100k Ω |
Needle pressure range | 1.25 ± 0.25g |
Needle tip | Diamond needle |
Dead weight | 6g |
Exchange needle | EPS-24CS(¥2,800) |
<General> | |
Functions | Auto-start arm forward control button Autostop arm back control button Queuing button Repeat button Rotation Number Switching (33 1/3 / AUTO / 45) Button Dial scale for confirming arm travel position MM Type Cartridge |
Pwer | 100 VAC, 50Hz/60Hz |
Power consumption | 6W |
External dimensions | Width 315x Height 88x Depth 315 mm |
Weight | 3.2kg |
Remarks | Transparent records and non-JIS sized records Records with large sleds cannot be played automatically. It is a manual performance. |