NIKKO 8085 Bias setting HELP!
- Thread starter johndoe10
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xrayspex77
Super Member
Don't know if this will help but this is from the SM for the 9095 ( free to join and no spam from them https://www.hifiengine.com/manual_library/nikko/9095.shtml )
johndoe10
Active Member
Thanks for the info, but I don't think it's going to work for my unit.
Kind regards -- John
Last edited:
xrayspex77
Super Member
There is a SM for the 8080 here https://elektrotanya.com/nikko_sta-8080_service.pdf/download.html
maybe between the 2 you can figure it out
maybe between the 2 you can figure it out
johndoe10
Active Member
The 9095 manual says 30 mA (15 mV across .47 ohm resistor)
The 8080 says 20 to 30 mA (10 to 15 mV across .47 ohm resistor)
I think you will be fine with 20 mA, but I wouldn't go over 30.
Was the bias pot replaced. They are a known weakness in some of the receivers of that vintage....YMMV
The 8080 says 20 to 30 mA (10 to 15 mV across .47 ohm resistor)
I think you will be fine with 20 mA, but I wouldn't go over 30.
Was the bias pot replaced. They are a known weakness in some of the receivers of that vintage....YMMV
johndoe10
Active Member
Hi Steve -- I didn't replace them yet, I had to order new ones. One of the old pots had fallen apart at some point before I took possession of the unit, I found pieces of it floating around inside. I'll take your advice and set the bias for 20mA, just to be on the safe side.
Thanks -- John
