[Lowfer] My Prototype LOWfer transmitter PC Board

[Paul Daulton]

lee I would like to see your layout. 

I recommend Farcircuits for the production. Fred is working with me on 
a reciever project and is very reasonable on the board prices. 

I did a layout last spring but havent finished it. I used a 3 pin dip, 
and I added a 10 turn 1k pot in the ground lead of the Epsom chip for 
frequency adjustment. 

I have been tied up on the rec project and also have my good friend and 
neighbor Paul Wynne AF5M  in the terminal stages of brain cancer, the 
wife and I help as much as we can. Paul is in home hospice care. 

If you want I can contact Fred about the boards. 

good luck with it

Paul k5wms

Quoting LEE BAHR <pulsarxp at embarqmail.com>:
> If anyone wants to see my Prototype Printed Circuit Board for my LOWfer
> transmitter, send me an e-mail.  I layed out the diagram with EXPRESS PCB
> and then hand etched a prototype board to see if it is going to work before
> I have some made up professionally.  I installed the 3 IC chip sockets and
> the 4-pin dip switch plus the 5 volt regulator today.  That's about half of
> the solder connections. 
>
> The board has a dip switch to turn on the transmitter all the time, select 1
> of 7 msgs on the K1EL chip, Epson oscillator, divide bye 10 chip, drive pot,
> balance pot, push-pull output, low pass filter with the option to tap to
> antenna before or after the low pass filter.  5 volt regulator to power the
> ICs.  Seperate power input for final transistors (12-24 volts). 
>
> Lee, w0vt
>
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Paul Daulton K5WMS
beacon WMS 185.302 khz qrss30/slow 24/7
Jacksonville,Ar 72076
em34wu