Vintage 1974 Pioneer Stereo Receiver SX-636 #VK3947008S
Working with Limited Testing
Up for auction is a Pioneer SX-636 Stereo Receiver.
The
Pioneer SX-636 was a mid-range offering from Pioneer in 1974, and produces 25 watts per channel into 8 ohms.
The FM tuner employs a low-noise FET, and a frequency-linear 3-gang variable capacitor in the front end. The FM IF section features a 5-stage limiter of high-performance IC, and phase-linear ceramic filters.
To ensure stability under all operating conditions, the FM MPX circuit is the advanced PLL (Phase-Lock-Loop) type with an IC.
Receiver Specs:
• Tuning range: FM, MW
•
Power output: 25 watts per channel into 8Ω (stereo)
•
Frequency response: 20Hz to 30kHz
•
Total harmonic distortion: 0.5%
•
Damping factor: 35
•
Input sensitivity: 7mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
•
Signal to noise ratio: 65dB (mic), 70dB (MM), 90dB (line)
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Output: 150mV (line), 30mV (DIN)
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Speaker load impedance: 4Ω (minimum)
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Semiconductors: 1 x FET, 3 x IC, 33 x transistors, 17 x diodes
Dimensions:
18.75 in (L) x 14 in (W) x 5.25 in (H)
Condition:
Good condition. Receiver turns on, and all buttons appeared to function correctly. Was able to gather and maintain an AM radio signal - stations came through clearly, and the speakers in the receiver seemed to have no issues. Both the signal and tuning gauges work properly, and the signal hand will move to the right upon receiving a solid signal. Item is somewhat dusty/dirty.
Item #6115-08368
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