Re: Audible buzzer

[George Richardson <gprtech@ix.netcom.com>]

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