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  1. K

    Mysterious Kenwood KA 77 Int. Amp

    Ka-77 I have one of these older units-Ebay has the later one(actually a -72B unit) amazingly heavy transformer for it's size; rated @ 50 WPC; board says"dangerous hi voltage", which means over 60 volt supply to transistor main pwr stage...
  2. K

    Amplifier Sensitivity, Decibels, and You!

    alright, I'll try, here goes; 1) The * indicates "times", or multiply. 2) The preamps usually do not have a gain stage, so they only "absorb" power, and do not "produce" any. 3) No, unless you have a schematic and/or can do the math, you won't know the mismatch amounts- you can, however...
  3. K

    Ohm walsh type ?

    Haven't tried, but can't find the difference between 1's, 2's, etc. I have four of (I think) type 1's. They look like the type 2's currently on Ebay. Anyone???
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