| Title | Value |
|---|---|
| Output stage : | 2x 6973 valves in push-pull per channel |
| Output effect : | 2x 15W continuous |
| 2x 25W (IHFM-A-200 musik standard) | |
| Output impedance : | 3,2 / 7 / 16 Ohm |
| Overall difference between channels : | 1dB maximum |
| Balance control : | 6dB |
| Bass control : | ± 12dB at 50Hz |
| Treble control : | ± 12dB at 10Khz |
| Balance control : | better than 2dB in all positions |
| Volume control tracking : | better than 2dB down to -40dB |
| Rumble filter : | 20...80Hz continuously variable |
| Mono/Stereo selector : | Stereo normal A-B |
| Stereo reversed B-A | |
| Mono on single channel A (left) | |
| Mono with parallel channels AB | |
| (In mono position the inputs are coupled in parallel) | |
| Inputs : | 100mV FM |
| 100mV tape | |
| 100mV aux. | |
| 2mV microphone | |
| 2mV at 1Khz pickup | |
| Pickup correction : | RIAA standard |
| Outputs : | 2x loudspeaker sockets |
| 1x tape output, stereo | |
| Fundamental noise : | -70dB (lines, volume at minimum) |
| -60dB (lines, volume at maximum, 20kOhm load) | |
| -50dB (Ortofon pickup, 5kOhm load) | |
| -50dB (microphone) | |
| Crosstalk : | > 40dB (lines, 20kOhm load, 10Khz) |
| > 30dB (pickup, 5kOhm load, 10Khz) | |
| PC : | ? |
| Dimensions : | ? |
| Weight : | ? |
Ortofon KS601
september 1960
c.1963
When high-fidelity was in its... late infancy.
Naive, heavy, tube-equipped and still designed like a 1950s kitchen mixer from outerspace... And in stereo, mind you !
The tubes used for the circuits are four 6793 (output stages, aka RCA 6973), two ECF80 (aka 6BL8), two ECC83 (aka 12AX7), one ECC82 (aka 12AU7) and two EF86 (aka 6267).
"This amplifier has been designed for music lovers. The amplifier has been specially constructed for reproduction with the ORTOFON pick-up : stereo and mono. But also crystal and magnetic pick-ups can be used. FM-AM radio and tape recorder inputs are available.
KS 601 has two push-pull outputs of 15 Watts each giving ample volume for undistorted reproduction in large rooms and is ideal for reproduction in your home."
page online since : july 2008
page updated : august 2010
page type : LGT / KNB
page weight : 511.82 Kb / 342.66 Kb
page updated : august 2010
page type : LGT / KNB
page weight : 511.82 Kb / 342.66 Kb
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