8 relays controlled by DTMF by Michel VE2WMG

 
 

Michel VE2WMG

 
 
Michel VE2WMG shows the group how to use two software Sprint Layout and
Proton IDE, these software are not free.
 
 
 

The Controller PCB was made with Sprint Layout

 
 
 

The relay PCB

 

 

 

The PCB are made with Press & Peel paper

 
 

 

You must print the circuit on a white sheet

 

 

 

Apply the paper on the copper

 

Check all lines and make repairs if needed

 
 

 
 

Pass through the ''Laminator'' many times to transfer the paper to the copper

 
 
 

Michel is using Muriatic Acid et du Peroxidize 30v

 
 
 

Use Acetone to clean the PCB

 
 
 

The circuit is now clean

 
 
 

The easiest way... using the fingers 

 
 

Michel shows the group how to transfer the file to the printer

We need two PCB, the controller et the relay

Jacques VE2ESM and Jacques VA2JCK

Jean VE2JM, Ronald Ve2ESX, Réal VE2DSK and Martin VE2MJT

Daniel VA2KEY, André VE2BJU and Roger VE2PB

 
 
 

The final product