I need help
I have, since 1975, an integrated amplifier by Sansui model AU 7700.
It had what I think were jumpers connected to the right and left entry RCA connectors of Phono 2 that I suppose were, in the absence of the Phono 2, to simulate it.
I also suppose that the jumpers have an specific impedance.
I recently send it to maintenance and the technician lost these jumpers.
If anyone is familiar with this equipment, and what I am calling jumpers, could you please check if I am right about my idea of their function and, if so, which is their impedance so that I can manufacture a replacement?
Thank you very much for any information.
Fabio
Here’s a downloadable user manual (I was off by 3 as phono 2 is fixed @ 50-:). https://steampoweredradio.com/pdf/sansui/manuals/au7700%20operating%20instructions.pdf I’ve seen/used this amp when it was new (lots a veteran’s were buying it @ PX discounts just after the end of the Vietnam war) and I do not recall the plugs you are referring to - nor could I find a pic of them in use. My brother-in-law used one with AMT1's for a while and the pics brought back memories. DeKay
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Those are plastic cover to protect the RCA jack from dirt, dust, oxidation or corrosion, not a shorting plug or phono impedance plug. You can purchase them on eBay or Amazon...
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OK - found a pick of Sansui RCA Phono Input shorting plugs on a later Sansui model from 1978, but you have to be registered (AudioKarma) to view the pics. It’s the pic in the first post and the plugs have a paper instructional tag attached to them. I don’t post there, but I recently registered because I like the site.
DeKay |
Here is what is printed on the paper instructions tag in the photo I linked above... IMPORTANT Do not insert these pin plugs into jacks other than PHONO. Inserting them into certain jacks will cut sound off.
This is what they look like if you can’t see the pic (and they are shorting caps).
"That is all."
DeKay |
