Sony TA-F5

Sony TA-F5A

1 9 7 7 september 1977
1 9 7 8

Mid-end DC integrated amplifier with ruler-flat frequency response and Pulse Power Supply.

Lower-end sibling of the terribly successful TA-F6B, the TA-F5 is the big version and the F5A a pared down, alternate and rare version.

Two gold-plated phono inputs (1x MM & 1x MC), Sony-made ICs (of course), clean cabling (if long...), a 4-gang attenuator from ALPS (of course), a solid diecast backplate which acts as heatsink, IC driver stage, NF tone controls, big (too big) meters plus (optional) solid AH-4A rack ears to perfect the real "pro" look of the late 1970s.

Also in : FET inputs, high-precision resistors and polypropylene caps for the MC/MM stage.

The circuit is close to that of the F6B, only downscaled and less powerful : DC, SEPP, OCL & OTL.
The Pulse Power Supply chops AC current at 20Khz as in the F6B or TA-N86B, even if the box is here finished in a more "homely" manner.

The TA-F5 is nothing really particular but clean, solid, all-metal and aluminium, long-lasting hifi with lots of power to boot.
And MC inputs, in 1977, weren't really that widespread on low-priced mid-end amps !

The TA-F5A version was export only : same structure and Pulse Power Supply but no 2nd phono input (and, hence, no MC cartridge head amp) and no stereo / reverse / mono switch - seemingly USA-only but for the Wega version of it (V-200 ; in the JPS351 series).

The same distinction happened between the TA-F4 and TA-F4A but not between the much smaller and meter-less TA-F3A and its (even lower and obviously different) TA-F3 version which was closer to a TA-11 than a TA-F5.

Available much later in the US than elsewhere and therefore until much later as well. To follow the market trend regarding mid and low-mid segments, the next step was to :

a) bring the inputs closer to the faceplate to reduce cabling and go for the freon-filled Heat-Pipe (TA-F80, 1978 high-end)

b) put just as much power into much more compact an enclosure, as exemplarily exemplified with the TA-F55 and its even smaller Heat-Pipe (1979, mid end).

Then sell a lot of FH-7 's worldwide :)

This post will be updated with the TA-F5A service manual, at least for the parts identical between the two versions, and hopefully a proper image for the TA-F5A.

Sony TA-F5, image 1 Sony TA-F5, image 2 Sony TA-F5, image 3
Sony TA-F5 specifications
Title Value
Power : 2x 70W (20Hz...20Khz, 8 Ohm)
Power bandwidth : 5Hz...35Khz
THD : 0,04% (20Hz...20Khz, 70W)
0,02% (20Hz...20Khz, 10W)
IM : 0,015%
0,0008% (20Hz...20Khz, 10W)
Damping factor : 40 (1Khz, 8 Ohm)
Phono inputs : 2,5mV / 50kOhm (MM)
0,08mV / 100Ohm (MC)
Phono overload : 250mV (1Khz)
Line inputs : 150mV / 50kOhm
S/N ratio : 70dB (MC)
85dB (MM)
105dB (lines)
Bass control : 60Hz ±10dB
Treble control : 25Khz ±10dB
Low filter : 6dB/octave below 15Hz
High filter : 6dB/octave above 9Khz
PC : 160W
Dimensions : 41 x 14,5 x 37cm
Weight : 7,2kg.
List price : 59,800¥ (1977)
Sony TA-F5 : 0 topic
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page online since : february 2009
page updated : october 2010
page type : LGT / KNB
page weight : 183.29 Kb / 0 b

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