Sansui 771

[riverrat373]

Anyone familiar with the Sansui 771? Good? Bad?

 

[east electronics]

not really one of the very best .... its a nice classic amp though ...dont expect miracles from it

the problem will be to bring it back to life ( if not canibalized allready )

its a fact that all electrolytics ( except orange elna ) need to be replaced from inside

here is a usefull link

http://www.diyaudio.com/forums/solid-state/136261-vintage-amplifier-repair-upgrade-manual.html

 

[riverrat373]

Thanks sakis.

 

[east electronics]

upgrade like that costs nothing ....though its extremelly time consuming presuming tha you have basic skills

 

[riverrat373]

Well, after all that, I just bought a Sansui 1000X in mint condition!

 

[east electronics]

please define "mint " condition ..... since the machine is give or take same age will require one of the same ....troyble cost and time to rebuilt it

if its still playing that deosnt mean that is going to last or that it plays properly

 

[riverrat373]

My philosophy is: "If it ain't broke, don't fix it!" I have vintage Pioneer, Marantz, Kenwood and NAD equipment that I have had for some time that I listen to, none which have been "fixed". They all sound good to my ears so I see no reason to replace any caps, etc. When one stops working or does not sound "right", then I will go inside .

 

[east electronics]

this what is the problem with non solid state electronics and especially vintage audio
they grow old together with the owners ....

get your shelf a capacitance meter ...the cheapest you will find is 15 usd remove any of the capacitors test ..... and let us know ...


i ve been doing this kind of work for more than 30 years totally and almost 15 in vintage audio professionally take my word for it even the best of wquipment will have to be recaped after 15 years of operation ...

this is not a question of opinion ...this is just a fact

happy capacitor regards ...sakis

 

[hero469]

does anyone have a list of caps needed yo recap a 771? i want to order them before i tear into mine.

 

[Ian Finch]

does anyone have a list of caps needed yo recap a 771? i want to order them before i tear into mine.

Its not a hard list to make for yourself, straight from the service manual. Print out the page, highlight all listed electrolytic capacitors and voila- job done apart from assigning equivalent or better grades from modern sources. That's not so hard really - pick a popular grade like Nichicon KG for the large power supply types, Panasonic FC for the smaller types and Nichicon UEP for the Bipolar or Non-polar signal coupling caps.

You may have to edit your list to suit the brands and much reduced size of today's electrolytics and availability but you'll have that ongoing problem with buying parts for any recap of old gear, whoever made up a list and even if it was drawn up recently.

Sign up for a free, decent quality manual download here: https://www.hifiengine.com/manual_library/sansui/771.shtml