Keyboard Shortcuts
Likes
Search
12vDC wiring and hookup
|
I am pacing the house waiting for my Bitx40 to arrive (we. Should be mere days away now) and looking over the build plans. I am looking for some clarification on the 12v power. From the power jack do you run direct to the volume pot for on/off and then distribute to the board or are all the connections made in parallel?? If you parallel the connection wouldn't that keep power flowing into parts of the board after other pieces (via the on/off volume pot) had been turned off? |
¿ªÔÆÌåÓýYup. Run a wire from the + side of the
power jack to one side of the switch. Then put all three of the
other + wires to the other side of the switch, orange from the VFO
and the brown wires from both the PA and PWR.
On 3/17/2017 4:59 AM, Crippen81@... wrote:
|
¿ªÔÆÌåÓýI use a separate switch DPDT ON-OFF-ON switch. In one position you feed 12V to both the main board and the final, in the other on position I feed 19.8 volts to the final and 12 volts to the board as follows: Switch contacts ? 1?????????? 2 3?????? ???4???? ?Rear of switch view. 5?????? ???6 ? Connect 12V ?from power supply to 1,2 and 5 Connect pin3 ?to power for the board (PWR1) Brown wire Connect pin 4 to final power (PA-PWR) brown wire Connect pin 6 to Final voltage. (In my case 19.8V) ? When the switch is in the center off position no voltage is fed to any circuit. In the down position 12 volts is fed from pin 1 to 3 powering the board and via pin 2 to pin 4 sending 12 volts to the final. In the up position pin 5 feeds 12 volts to the board and the final voltage on pin 6 is fed to the final. (Remember when the switch is in the down position the upper contacts are connected and vice versa.) This allows me to select either high or low power. ? V/R Fred W4JLE ? From: [email protected] [mailto:[email protected]] On Behalf Of Crippen81@... ? I am pacing the house waiting for my Bitx40 to arrive (we. Should be mere days away now) and looking over the build plans. I am looking for some clarification on the 12v power. From the power jack do you run direct to the volume pot for on/off and then distribute to the board or are all the connections made in parallel?? If you parallel the connection wouldn't that keep power flowing into parts of the board after other pieces (via the on/off volume pot) had been turned off? |