Technics ST-G45A (1988)
A quartz synthesizer AM/FM tuner from Technics, released in 1988, offering precise frequency control and solid mid-tier performance.
Overview
The Technics ST-G45A is a quartz synthesizer AM/FM tuner produced in 1988. Built by Technics, it uses a PLL quartz synthesizer tuning system for stable, accurate station selection. It supports FM and AM (MW) bands, with a tuning range of FM 87.5–108 MHz and AM 522–1611 kHz. The unit is noted for its 5.5 kg weight and 430 x 145 x 320 mm dimensions, indicating a full-width, robustly built receiver typical of late-1980s hi-fi gear.
Specifications
| Tuning range | FM 87.5 - 108 MHz, AM 522 - 1611 kHz |
| Intermediate frequency | FM 10.7 MHz, AM 450 kHz |
| Sensitivity (FM) | 1.0 µV (50 dB S/N) |
| S/N (FM) | 80 dB |
| THD (FM) | 0.15% |
| Frequency response (FM) | 20 Hz - 15 kHz |
| Capture ratio (FM) | 1.5 dB |
| Alternate channel selectivity (FM) | 70 dB |
| AM suppression (FM) | 50 dB |
| Image rejection (FM) | 80 dB |
| IF rejection (FM) | 90 dB |
| Spurious response rejection (FM) | 80 dB |
| Output voltage | 650 mV |
| Dimensions (W x H x D) | 430 x 145 x 320 mm |
| Weight | 5.5 kg |
Design
The ST-G45A uses a PLL quartz synthesizer tuning system, marketed as "Quartz Synthesizer Tuner" technology, providing stable, drift-free reception with digital precision.
Market
The Technics ST-G45A appears in the pre-owned market, with service manuals and schematics available. Replacement power cables are offered by third-party vendors, and units have been listed for sale around €65 EUR and PLN 190 as of early 2026.
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