Technics ST-8077

Super-ultra-slim tuner ready for the smart and unobtrusive 1980s with plenty of high-tech circuits inside to make up for that zen appearance.

If the SH-9010, ST-9030 or SU-9060 were from the flat series, this should put us to the ultrasuperslimflatter series.


Instead of a standard low-pass filter, pilot cancelling is performed by injecting a reverse-phase signal to maintain an 18Khz frequency response, IF filtering is done with a SAW (Surface Acoustic Wave) filter plus two 4-resonator ceramic filters.

A micro-disc type dual-gate MOS FET makes the front end, and an Active Servo Loop forbids frequency drift by "following" the signal and locking all five blocks (front, IF, discri, DC amp and local oscillator) together.

Popular then, fine tuning is done with three LEDs : two green triangles flanking the main red line and indicating if one is too left or too right from "perfect" tuning.
A 440Hz test signal generator is at hand for tape level calibration and two manually selectable muting threshold levels (plus no muting at all) allow to (sometimes) defeat bad reception with a minium of distortion.


Not an ST-A7B, not an ST-A6B either... but one can stack three ST-8077s on top of each other and the result will still be smaller than one ST-A6B !
Yes : the 8077 mainly looks very good.

Available in silver (more) and in Technics' usual 1975-1979 brown-ish-black color (less).


More details as to why the ST-8077 is also a fair tuner at fmtunerinfo.com.


Images here come from the february 1979 USA dedicated catalog, not scanned by me, but I probably have proper original european and japanese sources waiting in my yet-untouched stacks...