[TenTec] Omni VI+ mic input

[Anthony Bowyer]

I'm using the 705 (without a battery) with the Pegasus
with no problems. I did have to turn the mike gain up
to about 80% to drive the pegasus sufficiently. I also
have a Plantronics headset (usually used on
telephones) I modified, that works very well with the
Pegasus, but it only has an electret element.

--- "Dale L. Martin" <kg5u@hal-pc.org> wrote:
> 
> I think if you look at the Model 563 Wiring Diagram,
> microphone jack, you will
> see that the GND is, indeed, indicated as being
> connected directly to chassis.
> This was just confirmed on my radio with a voltage
> check (no difference) and
> with a resistance check (dead short) just a moment
> ago.
> 
> 73,
> dale, kg5u
> 
> 
> >Al, a lot of rigs - like my Icom IC-765 - do not
> use the same "ground"
> >for chassis and PTT, for example, and for the audio
> input. Icom "floats"
> >their mic input ground all the way up to the input
> of the first active
> >stage in the mic channel. So, the audio ground line
> at the connector does
> >not show zero ohms to chassis ground.
> >
> >Don't know about Tentec but they might do something
> similar which would
> >account for your finding.
> >
> >72/73, George
> >Al Williams wrote:
> >>
> >> I am happy to see the information on where the
> info about the mike voltage
> >> is located as I looked for it in isolating a
> failure in my 14 mos old
> >> omni6+.  (on my first call in fone SS contest,
> there was no indication of
> >> output).  I have since determined that it works
> if I jumper
> >> the hand held tt mikes ground to chassis ground. 
> The gnd pin on the
> >> tt front panel has no continuity to chassis
> ground.  I haven't yet asked
> >> tt for the proper repair.  Noticed that there
> appear to be some ferrite
> >> cylinders on some to leads from the tt front
> panel mike connector.
> >>
> >> I have started a cross-reference list for the
> omni6+ to help in tracing
> >> circuits from one board to another.  I wonder if
> others have already
> >> done this (besides TenTec!) or are interested. 
> Or am I missing some
> >> means already in place?
> >> alwilliams@olywa.net k7puc
> >
> 
> 
> 
> --
> FAQ on WWW:              
> http://www.contesting.com/tentecfaq.htm
> Submissions:              tentec@contesting.com
> Administrative requests: 
> tentec-REQUEST@contesting.com
> Problems:                
> owner-tentec@contesting.com
> Search:                  
> http://www.contesting.com/km9p/search.htm
> 
> 

__________________________________________________
Do You Yahoo!?
Thousands of Stores.  Millions of Products.  All in one place.
Yahoo! Shopping: http://shopping.yahoo.com

--
FAQ on WWW:               http://www.contesting.com/tentecfaq.htm
Submissions:              tentec@contesting.com
Administrative requests:  tentec-REQUEST@contesting.com
Problems:                 owner-tentec@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm