>If the TR6 turn signal indicator lamp is connected both the left and
>right turn signals, then the solution is to use 2 diodes with the
>buzzer. Any 2 diodes will do.
>
>Connect the anode of the first diode to one side of the lamp. Connect
>the anode of the seconde diode to the other side of the lamp. Connect
>the cathodes (banded ends) of both diodes together and to the red wire
>(positive side) of the buzzer. Connect the black wire (negative side) of
>the buzzer to ground.
>
>The diodes will steer current (they're called steering diodes in such an
>application) from the side of the lamp that has positive voltage (if
>any) to the buzzer without bypassing the lamp.
>
>--
>George Richardson
>'57 TR3, TS15559L
>(getting ready to paint - and now on the web!)
>http://www.merlingroupinc.com/tr3.htm
Thanks, this should be a much better configuration than my suggestion of
using a bridge rectifier to connect the buzzer across the indicator lamp.
It gives the buzzer a direct connection to ground, rather than through the
opposite turn signal lamps, so that there is no need to worry about the
effect of the voltage drop across those lamps on the operation of the 12V
buzzer.
As you point out, it also will not shunt current from the indicator lamp;
although it appears that this lamp has now been appropriated for a dozen
other purposes.
Trevor Jordan
74 TR6 CF29281U
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