[Elecraft] Re: K3 Bias voltage

[Ian J Maude]

Hi all,
I think we need to understand what is happening here.  I am pretty sure 
I have this correct.

The front panel socket is the same as the Kenwood one apart from the 8v 
being present on a different pin.  However, this is a bit of a 
smokescreen as it actually has very little to do with bias voltage.  The 
bias voltage as I see it drops a voltage onto pin 1 which will be the 
mic audio line.  This has been done for speaker mics and handies for 
some time.  So the bias voltage is nothing to do with where the 8v line 
is on the front panel socket.  Unless your mic requires the 8v line 
which would only normally happen for desk mics (?) I do not see a 
problem.  The vast majority of desk mics will have a blocking capacitor 
on the mic audio line.

Do I have it correct?

73 Ian

-- 

Ian J Maude, G0VGS
SysOp GB7MBC DX Cluster
Member RSGB, GQRP
K2 #4044 |K3 #455