A selection of vintage amplifier very representative of a beautiful era for high fidelity and music. Quality audio equipment, with useful information to carry out their restorations: equivalent transistors, list of electrolytic capacitors. Manual and Owner's Manual services are available at vintageshifi.com for your vintage amplifier. 
 AKAI AM 2250 (1979) AMPLIFIER, Continuous Power (RMS) 25 watts stereo at 8 ohms. Frequency response: 10Hz to 40kHz, Output Impedance: 8 ohms
Total Harmonic at rated output: 0,2% at 8 ohms, Damping factor: 50. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 AKAI AM 2350 (1979) AMPLIFIER, Continuous Power (RMS) 35 watts stereo at 8 ohms. Frequency response: 10Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,2% at 8 ohms, Damping factor: 30. Equivalent transistors and list of available electrolytic capacitors Service Manual available 
 AKAI AM 2400 (1976) AMPLIFIER, Continuous Power (RMS) 40 watts stereo at 8 ohms. Frequency response: 7Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,15% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual and Owner's Manual available 

AKAI AM 2450 (1979) AMPLIFIER, Continuous Power (RMS) 45 watts stereo at 8 ohms. Frequency response: 6Hz to 60kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,1% at 8 ohms, Damping factor: 30. Equivalent transistors available Service Manual available 
 AKAI AM 2600 (1976) AMPLIFIER, Continuous Power (RMS) 60 watts stereo at 8 ohms. Frequency response: 7Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,1% at 8 ohms, Damping factor: 60.
Equivalent transistors available Service Manual available 
 AKAI AM 2800 (1976) AMPLIFIER, Continuous Power (RMS) 80 watts stereo at 8 ohms. Frequency response: 7Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,08% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual available 
 AKAI AM 2850 (1979) AMPLIFIER, Continuous Power (RMS) 85 watts stereo at 8 ohms. Frequency response: 10Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,08% at 8 ohms, Damping factor: 50. Equivalent transistors available Service Manual available 
 HARMAN KARDON PM 665 (1982)
AMPLIFIER, Continuous Power (RMS) 100 watts stereo at 8 ohms. Frequency response: 2Hz to 150kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,08% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual available 
 LUXMAN L30 (1977) AMPLIFIER, Continuous Power (RMS) 32 watts stereo at 8 ohms. Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,05% at 8 ohms, Damping factor: 90. Equivalent transistors available
Service Manual and Owner's Manual available 
 LUXMAN L31 (1977) AMPLIFIER, Continuous Power (RMS) 38 watts stereo at 8 ohms. Frequency response: 15Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,5% at 8 ohms, Damping factor: 90. Equivalent transistors available Service Manual available 
 LUXMAN L81 (1976) AMPLIFIER, Continuous Power (RMS) 45 watts stereo at 8 ohms. Frequency response: 5Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms, Damping factor: 40. Equivalent transistors available Service Manual available 
 LUXMAN L100 (1976)
AMPLIFIER, Continuous Power (RMS) 110 watts stereo at 8 ohms. Frequency response: 5Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,07% at 8 ohms, Damping factor: 50. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 LUXMAN L550 (1982) AMPLIFIER, Continuous Power (RMS) 50 watts stereo at 8 ohms. Frequency response: 10Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,005% at 8 ohms.
Equivalent transistors available Service Manual and Owner's Manual available 
 MARANTZ 1030 (1973) AMPLIFIER, Continuous Power (RMS) 15 watts stereo at 8 ohms. Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,5% at 8 ohms, Damping factor: 45. Equivalent transistors available Service Manual available 

MARANTZ 1040 (1974) AMPLIFIER, Continuous Power (RMS) 20 watts stereo at 8 ohms. Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,3% at 8 ohms, Damping factor: 20. Equivalent transistors available Service Manual available 
 MARANTZ 1060 (1971) AMPLIFIER, Continuous Power (RMS) 30 watts stereo at 8 ohms. Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms
Total Harmonic at rated output: 0,5% at 8 ohms, Damping factor: 45. Equivalent transistors available Service Manual available 
 MARANTZ 1070 (1974) AMPLIFIER, Continuous Power (RMS) 35 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance:4,8 ohms Total Harmonic at rated output: 0,3% at 8 ohms, Damping factor: 20. Equivalent transistors available Service Manual available 
 MARANTZ 1090 (1977) AMPLIFIER, Continuous Power (RMS) 50 watts stereo at 8 ohms. Frequency response: 10Hz to 70kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0,1% at 8 ohms, Damping factor: 35. Equivalent transistors available Service Manual available 

MARANTZ 1122 DC (1978) AMPLIFIER, Continuous Power (RMS) 61 watts stereo at 8 ohms Frequency response: 5Hz to 60kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual available 
 MARANTZ 1150 D (1976) AMPLIFIER, Continuous Power (RMS) 75 watts stereo at 8 ohms Frequency response: 5Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms.
Equivalent transistors available Service Manual available 
 MARANTZ 1180 DC (1978) AMPLIFIER, Continuous Power (RMS) 90 watts stereo at 8 ohms Frequency response: 5Hz to 60kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual available 
 MARANTZ 4140 (1973) AMPLIFIER, Continuous Power (RMS) 70 watts x 2 at 8 ohms per channel, Continuous Power (RMS) 25 watts x 4 at 8 ohms (quadraphonic) Frequency response: 7Hz to 70kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.3% at 8 ohms, Damping factor: 40. Equivalent transistors available Service Manual available 

MARANTZ PM 400 (1980) AMPLIFIER, Continuous Power (RMS) 36 watts stereo at 8 ohms Frequency response: 20Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms, Damping factor: 100. Equivalent transistors available Service Manual available 
 MCINTOSH MA 6900 (2000) AMPLIFIER, Continuous Power (RMS) 200 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.005% at 8 ohms, Damping factor: 40.
Owner's Manual available Service Manual and brochure available 
 NAD 3020E (1980) AMPLIFIER, Continuous Power (RMS) 25 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms. Equivalent transistors and list of available electrolytic capacitors Service Manual available 
 NAD 3130 (1985) AMPLIFIER, Continuous Power (RMS) 30 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms. Equivalent transistors available Service Manual and Owner's Manual available 
 NIKKO NA 550 (1978) AMPLIFIER, Continuous Power (RMS) 50 watts at 8 ohms per channel
Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.08% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual available 
 NIKKO NA 1090 (1980) AMPLIFIER, Continuous Power (RMS) 63 watts at 8 ohms per channel Frequency response: 5Hz to 45kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.02% at 8 ohms, Damping factor: 50. Equivalent transistors available Schematics available 
 NIKKO TRM 650 (1978) AMPLIFIER, Continuous Power (RMS) 50 watts at 8 ohms per channel Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.07% at 8 ohms. Equivalent transistors and list of available electrolytic capacitors Schematics available 
 PIONEER SA 508 (1979) AMPLIFIER, Continuous Power (RMS) 25 watts at 8 ohms per channel Frequency response: 20Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 30. Equivalent transistors available Service Manual available 
 PIONEER SA 7500 (1976)
AMPLIFIER, Continuous Power (RMS) 40 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.3% at 8 ohms , Damping factor: 25. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 PIONEER SA 8500 (1976) AMPLIFIER, Continuous Power (RMS) 60 watts stereo at 8 ohms Frequency response: 7Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 30.
Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 PIONEER SA 8500 II (1978) AMPLIFIER, Continuous Power (RMS) 60 watts stereo at 8 ohms Frequency response: 5Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms , Damping factor: 30. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 PIONEER SA 9100 (1974) AMPLIFIER, Continuous Power (RMS) 60 watts stereo at 8 ohms Frequency response: 10Hz to 70kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 70. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 PIONEER SA 9500 II (197778) AMPLIFIER, Continuous Power (RMS) 80 watts stereo at 8 ohms Frequency response: 5Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms , Damping factor: 30. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 ROTEL RA 812 (1978) AMPLIFIER, Continuous Power (RMS) 45 watts stereo at 8 ohms Frequency response: 5Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.3% at 8 ohms , Damping factor: 50. Equivalent transistors available Service Manual and Owner's Manual available 
 ROTEL RA 1312 (1978) AMPLIFIER, Continuous Power (RMS) 80 watts stereo at 8 ohms Frequency response: 5Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 70. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 SANSUI A40 (1980)
AMPLIFIER, Continuous Power (RMS) 25 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.09% at 8 ohms , Damping factor: 30. Equivalent transistors available Service Manual available 
 SANSUI A60 (1980) AMPLIFIER, Continuous Power (RMS) 45 watts stereo at 8 ohms Frequency response: 5Hz to 70kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms , Damping factor: 80. Equivalent transistors available Service Manual available 
 SANSUI A80 (1979) AMPLIFIER, Continuous Power (RMS) 65 watts stereo at 8 ohms Frequency response: 5Hz to 70kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms , Damping factor: 80. Equivalent transistors available Service Manual available 

SANSUI AUD7 (1982) AMPLIFIER, Continuous Power (RMS) 80 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.02% at 8 ohms , Damping factor: 200. Equivalent transistors available Service Manual available 
 SANSUI AU 101 (1971) AMPLIFIER, Continuous Power (RMS) 15 watts stereo at 8 ohms Frequency response: 20Hz to 60kHz, Output Impedance: 8 ohms
Total Harmonic at rated output: 0.8% at 8 ohms. Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI AU 222 (1968) AMPLIFIER, Continuous Power (RMS) 18 watts stereo at 8 ohms Frequency response: 20Hz to 30kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.8% at 8 ohms , Damping factor: 30. Equivalent transistors available Service Manual available 
 SANSUI AU 317 (1978) AMPLIFIER, Continuous Power (RMS) 50 watts stereo at 8 ohms Frequency response: 5Hz to 70kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms , Damping factor: 70. Equivalent transistors available Service Manual available 

SANSUI AU 505 (1972) AMPLIFIER, Continuous Power (RMS) 25 watts stereo at 8 ohms Frequency response: 20Hz to 60kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.5% at 8 ohms , Damping factor: 50. Equivalent transistors available Service Manual available 
 SANSUI AU 517 (1977) AMPLIFIER, Continuous Power (RMS) 65 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.025% at 8 ohms , Damping factor: 60.
Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI AU 519 (1979) AMPLIFIER, Continuous Power (RMS) 70 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.08% at 8 ohms , Damping factor: 100. Equivalent transistors available Service Manual available 
 SANSUI AU 555A (1969) AMPLIFIER, Continuous Power (RMS) 25 watts stereo at 8 ohms Frequency response: 20Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.5% at 8 ohms , Damping factor: 50. Equivalent transistors and list of available electrolytic capacitors Service Manual available 
 SANSUI AU 666 (1968)
AMPLIFIER, Continuous Power (RMS) 35 watts stereo at 8 ohms Frequency response: 20Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.5% at 8 ohms , Damping factor: 40. Equivalent transistors available Service Manual available 
 SANSUI AU 717 (1975) AMPLIFIER, Continuous Power (RMS) 85 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.025% at 8 ohms , Damping factor: 60. Equivalent transistors available
Service Manual available 
 SANSUI AU 777A (1968) AMPLIFIER, Continuous Power (RMS) 30 watts stereo at 8 ohms Frequency response: 20Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.5% at 8 ohms , Damping factor: 15. Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI AU 999 (1967) AMPLIFIER, Continuous Power (RMS) 50 watts stereo at 8 ohms Frequency response: 5Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.4% at 8 ohms , Damping factor: 45. Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI AU 7500 (1972)
AMPLIFIER, Continuous Power (RMS) 54 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 50. Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI AU 7700 (1974) AMPLIFIER, Continuous Power (RMS) 54 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 30. Equivalent transistors available
Service Manual available 
 SANSUI AU 7900 (1974) AMPLIFIER, Continuous Power (RMS) 75 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 80. Equivalent transistors available Service Manual available 
 SANSUI AU 8500 (1974) AMPLIFIER, Continuous Power (RMS) 60 watts stereo at 8 ohms Frequency response: 15Hz to 30kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 50. Equivalent transistors available Service Manual available 
 SANSUI AU 9500 (1971)
AMPLIFIER, Continuous Power (RMS) 75 watts stereo at 8 ohms Frequency response: 15Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 50. Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI AU 9900 (1975) AMPLIFIER, Continuous Power (RMS) 80 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.08% at 8 ohms , Damping factor: 80. Equivalent transistors available
Service Manual and Owner's Manual available 
 SANSUI AU 11000 (1974) AMPLIFIER, Continuous Power (RMS) 110 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.08% at 8 ohms , Damping factor: 80. Equivalent transistors available Service Manual available 
 SANSUI AU 20000 (1975) AMPLIFIER, Continuous Power (RMS) 170 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms , Damping factor: 80. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 SONY TA 1630 (1975) AMPLIFIER, Continuous Power (RMS) 22 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.5% at 8 ohms , Damping factor: 40. Equivalent transistors and list of available electrolytic capacitors Service Manual available 
 SONY TA 2650 (1976) AMPLIFIER, Continuous Power (RMS) 43 watts stereo at 8 ohms Frequency response: 20Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.2% at 8 ohms , Damping factor: 25. Equivalent transistors and list of available electrolytic capacitors Service Manual available and Owner's Manual 
 SCOTT A436 (1976)
AMPLIFIER, Continuous Power (RMS) 42 watts stereo at 8 ohms Frequency response: 15Hz to 35kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.3% at 8 ohms , Damping factor: 35. Equivalent transistors available Service Manual available 
 SCOTT 460A (1978) AMPLIFIER, Continuous Power (RMS) 70 watts stereo at 8 ohms Frequency response: 10Hz to 40kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.04% at 8 ohms , Damping factor: 100. Equivalent transistors and list of available electrolytic capacitors
Service Manual and Owner's Manual available 
 TEAC BX 300 (1979) AMPLIFIER, Continuous Power (RMS) 35 watts stereo at 8 ohms Frequency response: 10Hz to 30kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 50. Equivalent transistors and list of available electrolytic capacitors Service Manual available 
 TECHNICS SU 7300 (1978) AMPLIFIER, Continuous Power (RMS) 41 watts stereo at 8 ohms Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.08% at 8 ohms , Damping factor: 40. Equivalent transistors and list of available electrolytic capacitors Service Manual available 

TECHNICS SU 7700 (1978) AMPLIFIER, Continuous Power (RMS) 53 watts stereo at 8 ohms Frequency response: 8Hz to 55kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.08% at 8 ohms , Damping factor: 50. Equivalent transistors available Service Manual available 
 YAMAHA CA 600 (1976) AMPLIFIER, Continuous Power (RMS) 30 watts stereo at 8 ohms Frequency response: 10Hz to 50kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 70.
Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
Vintage Hifi  Power amplifier
 ACCUPHASE P250 (1975) POWER AMPLIFIER, Continuous Power (RMS) 100 watts stereo at 8 ohms Frequency response: 5Hz to 90kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms , Damping factor: 50. Brochure available 

ACCUPHASE P300 (1975) POWER AMPLIFIER, Continuous Power (RMS) 150 watts stereo at 8 ohms Frequency response: 5Hz to 90kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms, Damping factor: 60. Equivalent transistors and list of available electrolytic capacitors Service Manual available 
 QUAD 405 I & II (19751993) POWER AMPLIFIER, Continuous Power (RMS) 100 watts stereo at 8 ohms
Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.01% at 8 ohms. Equivalent transistors and list of available electrolytic capacitors Service Manual and Owner's Manual available 
 MARANTZ 170 DC (1978) POWER AMPLIFIER, Continuous Power (RMS) 86 watts stereo at 8 ohms Frequency response: 7Hz to 80kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 60. Equivalent transistors available Service Manual and Owner's Manual available 
 MARANTZ 250 M (1976) POWER AMPLIFIER, Continuous Power (RMS) 126 watts stereo at 8 ohms Frequency response: 2Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms, Damping factor: 100. Equivalent transistors available Service Manual and Schematics available 
 NAD 2140 (1985) POWER AMPLIFIER, Continuous Power (RMS) 50 watts stereo at 8 ohms Frequency response: 10Hz to 30kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 150. Equivalent transistors available Service Manual available 
 NAD 2155 (1985) POWER AMPLIFIER, Continuous Power (RMS) 55 watts stereo at 8 ohms
Frequency response: 20Hz to 20kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 50. Equivalent transistors available Service Manual available 
 SANSUI BA 2000 (1975) POWER AMPLIFIER, Continuous Power (RMS) 110 watts stereo at 8 ohms Frequency response: 5Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.03% at 8 ohms, Damping factor: 70. Equivalent transistors available Service Manual available 
 SANSUI BA 3000 (1975) POWER AMPLIFIER, Continuous Power (RMS) 170 watts stereo at 8 ohms Frequency response: 5Hz to 100kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.05% at 8 ohms, Damping factor: 100. Equivalent transistors available Service Manual and Owner's Manual available 
 SANSUI BA 5000 (1974) POWER AMPLIFIER, Continuous Power (RMS) 300 watts stereo at 8 ohms Frequency response: 15Hz to 30kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms, Damping factor: 10. Equivalent transistors available Service Manual and Owner's Manual available 
 SCOTT ALPHA 6 (197677)
POWER AMPLIFIER, Continuous Power (RMS) 60 watts stereo at 8 ohms Frequency response: 15Hz to 35kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.1% at 8 ohms, Damping factor: 50. Equivalent transistors available Service Manual available 
 SCOTT ALPHA 10 (197677) POWER AMPLIFIER, Continuous Power (RMS) 100 watts stereo at 8 ohms Frequency response: 15Hz to 35kHz, Output Impedance: 8 ohms Total Harmonic at rated output: 0.15% at 8 ohms, Damping factor: 50.

Vintage Hifi  Préamplifier
 MARANTZ 3200 (1973) PREAMPLIFIER, Frequency response: 20Hz to 70kHz, Total Harmonic at rated output: 0.1%. Out Put: 0.5v Equivalent transistors available Service Manual available 

MARANTZ 3250 B (1978) PREAMPLIFIER, Frequency response: 5Hz to 60kHz, Total Harmonic at rated output: 0.01%. Out Put: 3v to 10v Equivalent transistors available Service Manual available 
 SANSUI CA 3000 (1975) PREAMPLIFIER, Frequency response: 20Hz to 70kHz, Total Harmonic at rated output: 0.03%. Out Put: 1.3v Equivalent transistors available Service Manual and Owner's Manual available 
 SCOTT ALPHA 1 (197677) PREAMPLIFIER, Frequency response: 15Hz to 35kHz, Total Harmonic at rated output: 0.05%. Out Put: 2.5v Equivalent transistors available Service Manual available 
