Read me first
 
I suggest you read the following pages in the numbered order.
Some important information may be covered in an earlier page and not repeated later.
At the end of the pages, you will find various downloads -
- Hex files for VFOs
- Circuit diagrams
- A few pages from my "experimenter's journal," which may be updated occasionally.
- A few pages written as an afterthought – see what I have said about OLEDs!
 
Eric ZL2BMI
 
 
1.  Why have these pages been updated after 12 years?
 
2.  Circuits and Bob ZL2ASO
 
3.  Digital VFOs for Dummies (Article in Sprat Magazine – join GQRP club – great articles!)
 
4.  Building the ZL2PD Sugar Cube  (Google ZL2PD for his website)
 
5.  The EWV VFO (Eric's Wonder VFO) – produced by Neville  ZL2BNE
 
6.  J Cesar VFO – modified by ZL2FSK.
 
7.  BEWARE the Asian OLED display!
 
 
DOWNLOADS
 
a)  EWV hex                                                              Download
 
b)  EWV  Circuit Diagram         View                            Download
 
c)  J Cesar hex                                                          Download
 
d)  J Cesar Circuit Diagram      View                            Download
 
e)  J Cesar Sketch                  View                            Download
 
For the Sugar Cube – download the required files from his site.
 
f)   ZL2BMI SSB                     View                           Download
 
THE ZL2BMI EXPERIMENTER'S JOURNAL  -  and more
 
g) My SugarCube Circuit for the Generic Si5351 board.       View          Download
 
(These will be added as time permits.)