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| How to use a relay to switch the Hot switch gain mod. |
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| This the the schematic for the DPDT 5 and 12 volt relay's that I stock. |
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| This is a relay power power supply board. The white wires are the 6.3 vac coming from the amps heater supply. To relay coil + goes to the relay coil positive. The relay coil minus is what you ground with a switch to turn the relay on. I used 4700uf/25V caps because that's what I had on hand. I stock 4700uf/16Volt caps to use on these relay power supplies. |
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| This is the schematic for the relay power supply board above. I have two 4700/16V filter cap and I have them separated by a 180 ohm 1/2 watt resistor. The 180 ohm resistor drops the supply voltage to the relay down close to 5 volts. Without out it I was closer to 7 volts. You can adjust the value of this resistor to suit your particular amp. |
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