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Hitachi HCA-7500 , Pretpojacalo pali sve normalno povezano sa pojacalo ali ne daje zvuk preko snagasa nije cackano unutra , ostalo je sve u redu
Hitachi HMA-6500
Specifications
Power output: 50 watts per channel into 8Ω (stereo)
Frequency response: 5Hz to 100kHz
Total harmonic distortion: 0.02%
Damping factor: 50
Input sensitivity: 1V
Signal to noise ratio: 115dB
Speaker load impedance: 4Ω to 16Ω
Dimensions: 435 x 153 x 306mm
Weight: 9.4kg
Year: 1979
Hitachi D-3300M
Specifications
Type: 3-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.75 cm/s
Heads: 1 x combination record/playback, 1 x erase
Motor: 1 x uni-torque, 1 x DC
Tape Type: type I, CrO2, FeCr, Metal
Noise Reduction: B
Frequency Response: 20Hz to 22kHz (Metal tape)
Signal to Noise Ratio: 69dB (dolby B)
Wow and Flutter: 0.023%
Total Harmonic Distortion: 1.0%
Input: 85mV (line), 0.5mV (mic)
Output: 0.775V (line)
Semiconductors: 20 x IC, 71 x transistors, 2 x FET, 85 x diodes, 15 x LED
Dimensions: 165 x 435 x 256mm
Weight: 8.7kg
Year: 1980
Hitachi HCA-7500
Specifications
Frequency response: 5Hz to 100kHz
Total harmonic distortion: 0.005%
Input sensitivity: 2mV (MM), 100mV (line)
Signal to noise ratio: 87dB (MM), 100dB (line)
Output: 100mV (line), 1V (Pre out), 7V (Pre out Max)
Dimensions: 480 x 166 x 348mm
Weight: 7.8kg
Year: 1978