----- Original Message -----
Sent: Wednesday, April 15, 2009 12:44
AM
Subject: [LML] Re: spike suppresion
diodes
Hi Gene,
The post from Scott and the
schematic doesn't have the spec for the diode on it, but I recall talking to
a local electronic guru who assured me that a diode from Radio Shack would
work to prevent the high voltage spikes... but that info is at the
airport.
The problem I had was
because I had wired the landing gear so that I could pull the breaker
for the hydraulic pump, while the master eminedremained on. The
master runs continuous 12v through the solenoids, which are not
continuous duty, and I melted the down solenoid, while adjusting the gear
light switches.
That caused me to realize
that what Scott said was true.... the only way to prevent this happening was
to wire the solenoids after the big 50a breaker for the hydraulic
motor ... which I did. Thus, as soon as the pump increases the
pressure enough the pressure switches cut off voltage to the
solenoids.
I also replaced the
melted solenoid. And to obviate the spikes, wired a diode into the
plus side of the solenoid... will check the diode tomorrow at the
airport.
Terrence
L235/320
N211AL
----- Original Message -----
Sent: Tuesday, April 14, 2009
20:06
Subject: [LML] spike suppresion
diodes
Does anyone have a part# for the Diodes. I
was going to place a order with Mouser but am overwhelmed by the 20 some
pages of diodes.
Terrence you posted you saved a
schematic from Scott K. could you or Scott post that again, I
remember seeing it and thought I saved it but can't find it .
Gene Martin
LNC2/320