FWIW - The OII has a separate amplifier for headphone independent of the
speaker amp. OI did not have this. The headphone amp appears to be in the
order of 3 ohms output impedance as close as I can measure .The side tone
level is independent of how the normal speaker or headphone level is set.
I think they are running out of lines on the screen to put every adjustment
we would like on a menu .
Hank K7HP
> And furthermore, it would be different for every difference impedance
> headset. The only way Ten-Tec could make this work to everybody's
> satisfaction would be to have two separate audio power amplifiers, one
> for speaker and one for headphones, with separately adjustable soft pots
> for each. Or a logic input from auxiliary switch contacts on the head
> phone jack could make the control system switch between two audio gain
> settings.
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|