John,

I used a relay on mine.  I saw a schematic somewhere, or read that the best to do was to use the alt warning lead from the alternator to pull a relay.  I then used a normally open contact on the relay to provide 12VDC to an LED on the I/P through a 680 ohm resistor.

 

Mine seems to work fine.

 

Steve Brooks

Cozy MKIV #1071

CH 25-finishing

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of John Slade
Sent: Friday, March 12, 2004 8:10 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] charging

 

I'm still having trouble with my alternator warning light.

I know we discussed this before, but would someone refresh my mind?

Currently I have an LED in the circuit as the warning light. It doesn't go out. Buss voltage seems fairly stable at 14.2v with engine running. Do I need a regular bulb rather an LED, and what are the specs of the diode shown in the schematic?

John Slade (hit 25 mph last night)