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Page 1 -
Page 2 -
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.
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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. |
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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. |
