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Up Down, button Mic Mod

Rogerbird1

Well-Known Member
Apr 24, 2002
525
133
53
Massachusetts
rogerbird.tripod.com
You will need 2 unused wires in the Mic Cord.

you can drill and add 2 Normally open pushbutton Switches

to the Mic. Connect one side of each switch to each other, and then to the the wire connected to Pin2 of the mic connector (Ground , Sheild or Common).

Connect the remaining connection of the 'UP' Switch to wire connected to pin 4 of the Mic connector.

Connect the remaining connection of the 'DOWN' Switch to wire connected to pin 5 of the Mic connector.



For more help see the Mic diagram at:

Accessory and MIC page



I hope this helps..



Roger




</p>
 

You will need 2 unused wires in the Mic Cord.

you can drill and add 2 Normally open pushbutton Switches

to the Mic. Connect one side of each switch to each other, and then to the the wire connected to Pin2 of the mic connector (Ground , Sheild or Common).

Connect the remaining connection of the 'UP' Switch to wire connected to pin 4 of the Mic connector.

Connect the remaining connection of the 'DOWN' Switch to wire connected to pin 5 of the Mic connector.



For more help see the Mic diagram at:

Accessory and MIC page



I hope this helps..



Roger




</p>
 
I was wondering, is it possible to mod my Astatic 575 with up/down buttons ? If so how can I do it


</p>
 
I was wondering, is it possible to mod my Astatic 575 with up/down buttons ? If so how can I do it


</p>
 

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    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
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