Technics ST-9038
The Technics ST-9038 is a high-end FM stereo tuner from the late 1970s. It is part of Technics' renowned 9000 Professional Series.
The front end uses five varicap diodes for electronic tuning. The IF stage incorporates one proprietary Technics 10.7MHz SAW filter and two conventional 10.7MHz ceramic filters. An AN278 IC is used in the IF amplifier stage, while the FM discriminator is built around the AN377. An AN363 handles stereo decoding, and a µPC4558 serves as the audio-frequency amplifier.
The ST-9038 has a slim yet very heavy chassis. The tuner itself provides basic FM frequency-synthesizer functions, while the additional Technics SH-9038 unit adds station memory and timer functions.
Station reception and soundstage are exceptional. The only drawback is that the tuner boards are difficult to access for servicing.
Manufacturer: Technics
Status: Active company
Official website: technics.com
General Specifications
Antenna Input: 75ΩFM Tuning Range: 87.6MHz-107.9MHz
Sensitivity: 1.2µV
Signal-to-Noise Ratio: 72dB
Total Harmonic Distortion (1kHz): 0.15%
Frequency Response (20Hz-18KHz): +0.1,-0.5dB
Stereo Separation (1KHz): 45dB
Dimensions (WHD): 450×53×293mm
Weight: 5.9kg
Produced: 1978-1979
Initial price: $600
Factory Specification Sheet
Factory specification images are sourced directly from the device's original service manual or user manual. These documents are produced by the manufacturer and provide authoritative information on the product's specifications.
FM Tuner
Measurements of the tuner section were performed using an FM signal generator, with its output fed directly into the antenna input. AM measurements were not conducted.
