[Drake] Fw: TR-7

[John Warren]

Looking at the TR-7 from the front, the transistor is in the upper left corner of the DR-7 board. I 'm at work now, so I don't have the reference designator. All you have to do is disconnect the base of this transistor to get GenCov Tx above 5 MHz. I did this exact mod years ago to get WARC coverage on my TR-7.
   
  73,
   
  John K5QX

Jim DiMauro <radio6146 at yahoo.com> wrote:
  There's also a less damaging way of getting general
coverage that doesn't require cutting the board trace.
It involves removing a transistor (I've forgotten
offhand which one), nothing more. That's how I did
mine, worx fine and completely reversible. In no event
to you need the AUX-7 to get GenCov. The AUX-7 did
however, limit additional coverage to specific
portions of the spectrum, unlike the board trace cut
and transistor removal, both of which open the thing
up to xmit and rcv anywhere from 1.8 - 30 MHz.

73,
Jim
W2BVM

--- Floyd Sense wrote:

> Drake provided a simple mod (believe it was cutting
> a circuit board 
> trace) to provide general coverage. I've made that
> change and it works 
> great without the AUX-7 board.
> 
> 73, Floyd - K8AC
> 
> Dave Meitzen wrote:
> > The question is how can it be general coverage
> without a AUX-7 board? I
> > thought that you needed the diode chips programmed
> to get general coverage?
> > 
> > Dave AA9TT
> > 
>
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