Technics ST-G45A (1988)

A quartz synthesizer AM/FM tuner from Technics, released in 1988. It has precise frequency control and solid mid-tier performance.

Overview

The Technics ST-G45A is a quartz synthesizer AM/FM tuner made in 1988. It uses a PLL quartz synthesizer tuning system for stable, accurate station selection. It covers FM and AM (MW). The FM range is 87.5-108 MHz and the AM range is 522-1611 kHz. It weighs 5.5 kg and measures 430 x 145 x 320 mm, which makes it a full-width, heavily 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. It gives stable, drift-free reception with digital precision.

Market

The ST-G45A turns up on the pre-owned market, and service manuals and schematics are available. Third-party vendors sell replacement power cables. Units have been listed for sale around €65 EUR and PLN 190 as of early 2026.

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