Technics ST-G6T (1985)
A quartz-synthesized FM/AM tuner from Technics with precision tuning and high stereo separation.
Overview
The Technics ST-G6T is a quartz-synthesized FM/AM stereo tuner made by Technics/Panasonic around 1985. It features a 16-station random access memory, auto-scan tuning, and an auto-memory function for quick station storage. The unit includes a digital FM signal strength display and a signal fidelity indicator to ensure optimal reception quality.
Specifications
| Receiving frequency (FM) | 76.1 MHz to 89.9 MHz |
| Practical Sensitivity (FM, 75 Ω) | 10.3dBf/0.9 μV (IHF'58) |
| SN50dB Sensitivity (FM, 75 Ω) | Mono: 18.1dBf/2.2 μV (IHF'58) Stereo: 38.1dBf/22 μV (IHF'58) |
| Distortion factor | Mono: 0.009% Stereo: 0.015% |
| Dynamic range | 106 dB (1 kHz, 100% mod, 0 dB) |
| Frequency characteristic | 4 Hz to 18 kHz +0.2, -0.5 dB |
| Effective selectivity | Normal: 40 dB (±400 kHz) Super narrow: 25 dB (±200 kHz) |
| Capture ratio | 1.0 dB |
| Image interference ratio | 90 dB (83 MHz) |
| IF interference ratio | 105 dB (83 MHz) |
| Spurious interference ratio | 110 dB (83 MHz) |
| AM suppression ratio | 55 dB |
| Stereo separation | 60 dB (20 Hz) 70 dB (1 kHz) 57 dB (10 kHz) |
| Leak Carrier (19 kHz) | -70 dB |
| Receiving frequency (AM) | 522 kHz to 1629 kHz |
| Practical sensitivity (AM, S/N = 20 dB) | 290 μV/m, 20 μV |
| Selectivity (AM) | 50 dB |
| Image interference ratio (AM) | 40 dB |
| IF interference ratio (AM) | 60 dB |
| Quartz timer | Daily action 1 set, once action 1 set |
| Power | 100 VAC, 50Hz/60Hz |
| Power consumption | 9.5 W |
| External dimensions | Width 430 x Height 64 x Depth 241 mm |
| Weight | 2.3 kg |
| Output | 450mV |
| Finish | black |
Design
The ST-G6T uses twin quartz control in both the front end and MPX circuit for stable tuning and high stereo separation. A double PLL configuration locks the VCO to 19 kHz with high accuracy, while a linear switching MPX IC improves linearity by eliminating nonlinear elements. The auto-IF function switches between normal and super narrow IF circuits based on signal conditions, and the quartz level check outputs a precise 333 Hz reference signal for deck calibration.
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