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Page 3 |
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How to use a relay to switch the Hot switch gain mod. |
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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. The Bridge
method is what I am using since it seems to be the most flexible. |
| Notes :
The pin numbers on the relay above are the same pin numbers used on the
DPDT switch for the Hot switch mod.
You can use 1N4001 diodes instead of 1N4007's. |
| See page 3 for the final
design that I have dialed in and used on a few amp projects. Page links are at
the top of this page. |
