AM/FM Stereo Receiver (1976)
The Sansui 7070 is an advanced electronic design in the medium-power/medium-price range.
It has 65 watts, both channels driven into 8 ohms at 1000Hz, giving you adequate power to drive two sets of full-size speaker systems.
Features include a highly sensitive MOS FET FM front-end and a Dolby FM adaptor terminal.
Tuning range: FM, MW
Power output: 60 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 30kHz
Total harmonic distortion: 0.3%
Damping factor: 45
Input sensitivity: 2.5mV (mic), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 70dB (MM), 80dB (line)
Channel separation: 50dB (MM), 50dB (line)
Output: 150mV (line), 30mV (DIN)
Speaker load impedance: 4Ω to 8Ω
Dimensions: 502 x 156 x 371mm
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Submitted by RGV0299
LO TENGO A UN MAGNIFICO
Submitted by jeanluc
I have been given a Sansui 7070 with a defective power section (caused by a short-circuit on the output). I have replaced numerous fuse-resistors and the power transistors (with equivalents, not original parts) but it still does not work! Any suggestions, previous experience, comments? As well, the service manual does not show the voltages at the test points (too dark). Do anybody have a better copy? Thanks!
PS: I have listened to this unit when it was still functioning and it was clearly an exceptional amplifier (for the time). I'd love to resuscitate it!