As-is, the tuner's low-noise on weak signals is partly 'fake' SNR by my criteria because it's accomplished by severely rolling-off the upper mids and highs." Our contributor Pete says, "My unit was a brick as far as performance.
I asked every Japanese engineer that come from Consumer Audio in Japan when they visited, and could not learn more about this tuner.
C201 and F, 16v to 680 F, 16v Panasonic.
Sony ST-J88B (1978, 900, photo, service manual ) search eBay The ST-J88B is a solidly built (15 pounds) and very attractive rack-mount style FM-only digital tuner with 7 presets, wide/narrow IF bandwidth settings and defeatable muting.I've got the Japanese engineering schemos, that's it, and an early internal spec sheet.Both have PLL detectors and the 5 adds an M5220P op-amp in the output." And our panelist Ray takes a look at the SA5's de-emphasis circuit: "De-emph is via feedback around the output of IC301 MPX.The ST-5000F F" for FET introduced about one year later, had 4 FET's in the front end- 2 RF amps, mixer and oscillator.Now having said that, it is not the best-sounding tuner, as it has an overly warm, rounded sound in my system." Sale prices for the ST-5130 on eBay are erratic: most often 60-100, with a low of 10 in 11/12 and a high of 232.I think that's the flattest I have ever measured." See our writeup of the Denon TU-660 to read how Ray and our panelist JohnC compared the ST-J75 to their respective Denons and modded Hitachi FT-5500mkiis.In each case the Pioneer could equal or better the Sony's reception but only after very careful tuning and tweaking.I tend to like the TX-1000 better as it has more capability for difficult station reception, which I need." Here's our contributor Brian Beezley's review: "The ST-S730ES surprised me with a circuit nearly identical to that in the ST-S444ESX.The "SD" denotes Dolby capability, which is irrelevant today.Any differences in sound are subtle because I can't hear them.The ST-5000 is the earlier version and is very rare.
Like the Yamaha TX-950, a real 'sleeper' for the money." Glenn adds, "As I listen to my stock Yamaha TX-1000 and McIntosh MR 75 and then the ST-J75 I am struck, as always, at how 'black' the background.