[TR] Problem with J-type overdrive blowing fuses

[Dave1massey at cs.com]

Good point, Greg, except Allan has a J-type overdrive which uses a pilot 
operated valve and has only one winding.  But to everyone with an A-type take 
these words to heart.  I suggest a 5 amp slow blow.

Dave

In a message dated 6/12/2012 7:09:53 AM Central Daylight Time, 
greg at gelhar.com writes: 
> Its good that you supplied the overdrive with a fused circuit. The
> overdrive solenoid has two windings. A heavy 'closing' coil and a lighter
> 'holding' coil. The heavy coil draws 18 to 19 amps and is only in the
> circuit momentarily. The solenoid should close with a surge of current and
> the ammeter should show arround 1 to 1 1/2 amps.  That shows the 'holding'
> coil is working and the 'closing' coil has been switched off by the
> solenoid plunger action. The plunger switch is under the top cap of the
> solenoid.
> 
> Without your fuse, the solenoid won't last long if the switch fails to 
> work.