While removing a defective speaker from a KPA100 and replacing it with a
speaker from the QRP top of a basic K2 I discovered that they are wired
different. On the KPA100 the silver wire goes to the positive speaker
terminal and on the basic K2 the copper wire goes to the positive terminal.
The difference in color on each goes all the way back to the P5 SPKR
connector on the K2. I"ve verified that both are wired per their respective
manuals. Both terminals on the speaker are isolated from ground. Their
speaker jacks are also reversed by color so there is no problem of the
positive being connected to ground there if wired per instructions.
It doesn't seem to be a problem unless you are carrying the wire colors from
one to the other as I was about do (until I realized the difference) and
then to ground the negative side of the speaker.
Just a bit of trivia that I stumbled into today and thought it worth
mentioning. So much for carrying the same wiring convention between
different equipment.
Jim, AB0UK
K2/100 S/N 4787
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