My original question was to see if anybody had any experience with the "no
Tx audio" problem. As it turned out, there was a bad 330uF 10V electrolytic
cap that was causing the problem. As it turned out, this unit turned out to
be another unit that was
"peaked and clipped" by somebody who didn't know what they were doing. In
other words, another piece of eBay junk.

Pete

"Frank Gilliland" wrote in message
...
On Sun, 25 Feb 2007 16:23:27 -0600, "Pete KE9OA"
wrote in
:

There is no such thing as an intended frequency. Now, if you said that if
a
resistor is used, taking into account its limitations. Must we continue
this
silly bantering?


My apologies. I'll rephrase:

When a resistor is used within it's intended operating frequency
range.....

When a resistor is used below the frequency where it no longer behaves
like a resistor.....

When a resistor is used in the frequency range for which it was
designed.....

Better?

And if you don't like "silly bantering", why are you in this group?

On Sun, 4 Mar 2007 11:09:00 -0600, "Pete KE9OA"
wrote in
:

My original question was to see if anybody had any experience with the "no
Tx audio" problem. As it turned out, there was a bad 330uF 10V electrolytic
cap that was causing the problem.


15 volt?


As it turned out, this unit turned out to
be another unit that was
"peaked and clipped" by somebody who didn't know what they were doing. In
other words, another piece of eBay junk.


Too many of those out there.

It was actually a 10V unit. I don't know why they would use something like
that either. All I've got to do is isolate the problem with whatever sets
the parameters for AM mode. It receives fine in AM mode, transceives fine in
SSB mode. Looking at the schematic, I saw a 220 Ohm resistor that is
switched in for biasing the output stage for SSB. In the AM mode, the mode
switches bypasses this resistor. Could be a bad mode switch. I have been
working 60+ hours every week, so I get about an hour each weekend to work on
this thing. Unless they send me out to Singapore for
awhile....................

Pete

"Frank Gilliland" wrote in message
...
On Sun, 4 Mar 2007 11:09:00 -0600, "Pete KE9OA"
wrote in
:

My original question was to see if anybody had any experience with the "no
Tx audio" problem. As it turned out, there was a bad 330uF 10V
electrolytic
cap that was causing the problem.


15 volt?


As it turned out, this unit turned out to
be another unit that was
"peaked and clipped" by somebody who didn't know what they were doing. In
other words, another piece of eBay junk.


Too many of those out there.

On Sun, 4 Mar 2007 11:09:00 -0600, "Pete KE9OA"
wrote:

+++My original question was to see if anybody had any experience with the "no
+++Tx audio" problem. As it turned out, there was a bad 330uF 10V electrolytic
+++cap that was causing the problem. As it turned out, this unit turned out to
+++be another unit that was
+++"peaked and clipped" by somebody who didn't know what they were doing. In
+++other words, another piece of eBay junk.
+++
+++Pete
********

Yep, Seen many an electrolytic go bad. Especially in power supplies.
Heat is the enemy of electrolytics.

As for EBAY CB radios, mostly useless other than parts.

james