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Ken C
Posted: Thu Feb 01, 2007 7:42 am
Guest
I bought the referenced mixer kit on eBay. The vendor knows nothing
technical and has not been helpful in communicating with the kitter,
which I suspect is in eastern Europe. The instructions are not quite
up to USA kit standards.

In particular, I have been unable to learn what pots P!-P3 and P1'-P3'
are supposed to do.

Can someone please take a look at the schematic and give me an
opinion? See:
http://home.att.net/~cprstn54/mixer.pdf

Ken C
tempus fugit
Posted: Thu Feb 01, 2007 10:06 am
Guest
I think P1 and P2 are bass and treble controls, and P3 is a balance or
wet/dry control.

As for the P1', all I see there is a connection for it on the board layout -
it doesnt appear in the schem does it?


"Ken C" <cprstn54@nospam.att.net> wrote in message
news:huj3s25jkup0pciq72r1mov099ijh4oe0o@4ax.com...
Quote:
I bought the referenced mixer kit on eBay. The vendor knows nothing
technical and has not been helpful in communicating with the kitter,
which I suspect is in eastern Europe. The instructions are not quite
up to USA kit standards.

In particular, I have been unable to learn what pots P!-P3 and P1'-P3'
are supposed to do.

Can someone please take a look at the schematic and give me an
opinion? See:
http://home.att.net/~cprstn54/mixer.pdf

Ken C
Homer J Simpson
Posted: Thu Feb 01, 2007 2:36 pm
Guest
"tempus fugit" <toccata@quitspammingme.ciaccess.com> wrote in message
news:439b7$45c1f318$d1d89b6f$20794@PRIMUS.CA...

Quote:
I think P1 and P2 are bass and treble controls, and P3 is a balance or
wet/dry control.

P3 is volume. The 'prime' version of the P1 to P3 pots are the other channel
(right?). Only one channel shown.

Quote:
As for the P1', all I see there is a connection for it on the board
layout -
it doesnt appear in the schem does it?

The other P pots appear to be for the mixer function, 2 lefts and 2 rights.
Ken C
Posted: Thu Feb 01, 2007 2:49 pm
Guest
On Thu, 01 Feb 2007 06:42:34 -0500, Ken C <cprstn54@nospam.att.net>
wrote:
Quote:
I bought the referenced mixer kit on eBay.

FWIW, this is the eBay page:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=6031715442&rd=1&rd=1

Maybe P1-P3 and P1'-P3' are for the
"sound regulator for low and high audio frequencies and a
preamplifier,"

or maybe have to do with

"Supply voltage is bipolar and can be adjusted in the range of ±9 V to
±18 V."

What is life without some mystery?

If only I could be sure I wouldn't lose the magic smoke, I would just
twiddle and see what happens.

Ken C
 
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