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Sansui RA-500

Reverberation Amplifier

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Sansui RA-500


Rated output voltage: 300mV

Maximum input voltage: 3V

Harmonic distortion: less than 0.2%

Frequency response: 20 to 30,000Hz

Signal to noise ratio: 65dB

Reverberation time: 1.9 to 3.2 sec

Semiconductors: 11 x transistors, 3 x diodes

Dimensions: 320 x 162 x 265mm

Weight: 5.2kg


service manual  English

brochure  English - danickd

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Submitted by ganesa

Yes.. its really help me a lot, i plant to modify this Sansui to have 'mix' potentio, and i got it where the point (fixed resistor) should i replace




keeping it alive

i too was in veitnam and korea in the early 70s this stuff will still blow away the audio of today..the spec on this stuff was way ahead of its time and still is..long live the good stuff..thank you for letting us keep it alive,,,,,chuck b dr.dodge aka silver bullitt

caxambu's picture

Service Manual for Sansui RA-500 Reverb Amplifier

I have tried everything that I can think of to be able to download the service manual. What I am looking for is the proper fuse to use. The unit that I have is missing this. On the back it states 100/117V - 0.5A; would this be the correct fuse to be used?
Thank you for your help.

Fuse rating

Yes, the fuse is rated @ 0.5 amp @ 100-117 vac.

sansui ra 500


Sansui RA 500 Reverb:

I spent some time in SouthEast Asia in the US Marine Corps and I had a pick of spending time away from war in a nearby country of Sasebo & Yokusko,Japan. Had a bunch of US dollars to spend tax free on whatever my heart desired and I chose to make some of my purchases in Hi-Fi equipment. At the time in 1960's thru 70's Sansui sold very well made Audio products. I bought a whole system -Amp/Rec;Tape decks,Reverbs,Speakers & Belt Drive Turntables just as 10's of 1000's soldiers & sailors did TAX FREE.I still have these old vintage audio components and lost some of the manuals through the years.It's been 40 yrs since and I just about gave up finding mauals that date back this far.I want to thank you for this it made my day! I will always keep your site handy because I now have other older manuals that are in bad shape. Most of my war buddies still have their very 1st stereo systems,it's like a war chest,you keep, store it because of memories.

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