Codan 8727 info (And 7727)

V

VK3ZYZ

Guest
The filter looks a lot better made on a bit of Vero Board!
1.65MhxFilterTop.JPG
1.65MhxFilterBtm.JPG
And here it is installed.
1.65MhxFilterInstalled.JPG
The resonance is a bit high , 1.8Mhz, as I used 470pF caps in stead of 510pF.
But it goes ok.
 
V

VK3ZYZ

Guest
Codan8727VFO_Delux3.png

Here is a 3D printed front for the Codan 8727, fitted with the VFO-Delux board.
This is not all wired up and the pushbuttons still need to get here.
Also, there is the aux meter code to do, as well as a general code build. Still, this is what it will look like.

Codan8727Front.png

Another thing to do is an interface to give pushbutton volume control in place of the original pot.
AND, band switching.....
Lots more to do.
 
V

VK3ZYZ

Guest
As I'm trying to get this going for tomorrow's ham meeting, a pot and various switches have been added. It is pretty rough, but I hope it will work enough.
(A quick trip yesterday to Jaycar for parts)
Codan8727VFO_Delux3_1.png


Codan8727VFO_Delux3_2.png


Most of the push buttons will not be used.
It looks like a bit of black tape over the ESP32 board LED may be a good addition too.
But, eventually, the front will be in black plastic.

EDIT:
I changed to an S meter as a VU meter is not what a radio really needs :)
Codan8727VFO_Delux3_3.png
 
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