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Creating up a Relay power supply from the 6.3 volt AC heaters |
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| This diagrams shows a 6.3vac heater supply with a transformer center tap and a full wave rectifier. Note: This method did not produce enough supply voltage to run both the LED and the relay in my bench test. |
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| This diagrams shows a 6.3vac heater supply with an artificial center tap created by two 100 ohm resistors
and a full wave rectifier. Note: This method did not produce enough supply voltage to run both the LED and the relay in my bench test. |
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| This diagrams shows a 6.3vac non center tapped heater supply with an artificial center tap
created by two 100 ohm resistors and a full wave Bridge rectifier. Note: This method produced plenty of supply voltage to run both the LED and the relay in my bench test. You could easily add another LED to this system. |
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| Here's an even better way to have a steady 5 volt power supply Use a 5 Volt regulator after the bridge rectifier This method will be able to power several relays and LED's I stock 7805 regulators on my web store |
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| This diagram shows how to have an LED light up inside a footswitch Note that you must send 5 volts power from the relay power supply to the footswitch When you close the switch, the negative from the power supply is connected to the LED and the relay coil The LED inside the footswitch will light up and the relay coil will engage |
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| Populating my Single Relay and Relay Power supply boards |
| Click on the images to see a larger image |
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| This is the single relay board that I sell on my
Channel switching page The image above shows a board populated with parts, a top side shot and a bottom side shot I stock all the parts for this board The parts list for this board can be seen on the Public Parts List Page Using this board makes is way easier than building your own board from scratch |
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| Click on the images to see a larger image |
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| This is the Relay Power Supply Board that I sell on my
Channel switching page The image above shows a board populated with parts, a top side shot and a bottom side shot I stock all the parts for this board The parts list for this board can be seen on the Public Parts List Page Using this board makes is way easier than building your own board from scratch |
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| Relay install tips for the 16 pin Relay sockets and 5 volt relay listed on my catalog page | |
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| This is the schematic for the 16 pin small signal switching relay's that I stock. It can be confusing when you look at the diagram on top of the relays which is actually the bottom view. Left on the diagram above: This is the the way the pins look when looking down at the top of the relay. Right on the diagram above: This is the way the pins look when looking at the bottom of the relay. Without any power to the relay coil, pins 13 and 11 are connected on one side of the relay. On the other side of the relay, pins 4 and 6 are connected Applying 5 volts to the coil will connect pin 13 to pin 9 on one side of the relay. On the other side pins 4 and 8 will be connected. |
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| Left - Remove 8 of the relay socket pins. The socket pins on the socket should match
the pin layout on the relay. Use a pair of fine tipped needle nose pliers to carefully push the extra pins out of the socket base. If you are going to make your board from scratch and drill your own holes, use the template I send with each relay or socket Below Right - Peel off the white backing material on the socket template and stick it down on your circuit board. |
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| Use a very sharp center punch and punch the centers of each + Use a 3/32 Drill bit and drill the Turret lug holes. |
Peel off the template and install the Turret lugs |
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| Left - Solder the relay socket to the Turret lugs. This can be tricky. I find it helps to raise the socket up off the lugs just a bit so you can flow the solder down into the hole in the top of the turret lug. You can also add a tiny bit of solder to the top of each lug without closing off the hole. When you heat up the lug with your soldering iron, the solder should flow. Wrap and Solder your connection wires to the base of the turret lugs or make your wire connections under the board for a cleaner look. Right - Plug the relay into the socket |
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