Large Scale Central

airwire problem

Electronics Power and Sound
#1

I need some advice

I am installing a airwire drop in gp38-2. the front and rear lights have a two prong adapter but the airwire board is 4 prong for the rear and three for the front

I am guessing that my GP is an older version

Does anyone have a solution for this

my only thought is ordering replacement electronics from Charles Ro

thanks in advance

JKS

#2

No, because the voltages are different between the 2 versions.

Greg

#3

John I would contact Air Wire, when Al was there a number of years ago I had a problem with a drop in that I put in the new wiring at that time he told me not to change the wiring that he had a much cheaper fix.

cheers

Richard

#4

You would have to change out the light boards and bulbs… you don’t want to do that.

Greg

#5

thanks for the info

helpful as usual

JKS

#6

John I found it Like said you don’t have to change the boards and wiring like I did, First Generation GP38 Light Hookup Kit Soldered together and covered with heatshrink tubing GP38 Drop-In Wire Colors May Vary Pin n u m bers are for the plu g Plu gs are polarized an d will only plu g in one way. 4 Ccon ductor Miniature Plu g 3 Con ductor Miniature Plu g Designed for use with first generation USA-Trains GP38-2 locomotives. The locomotive did not have a voltage regulator and used 18V incandescent lamps. This kit provides two matching plugs to the Drop-In sockets. The wires are then hooked up to the locomotive internal light boards as shown

cheers

Richard

#7

Richard, I don’t see a link, did you mean to post one?

Greg

#8

Along the lines of his questions , is there a LED conversion kit, or a constant lighting kit to keep the lights on bright instead of with track voltage?

#9

this was the CVP respons

We offer an adapter cable for the GP38 Drop-In. Part number is GP38LITE

The Cost is $10 plus postage. It is a custom cable-made cable with plugs
that fit the GP38 Drop-In with about 18 inches of wire that connects to the
old style GP38 lighting boards.

Here is a link to the app note shows what you have to do to use the cable.

http://www.cvpusa.com/doc_center/r3a_nonstd_lightg_kit_4_GP38.pdf

CVP

#10

Interesting, reading the instructions, you get a cable to connect, but I don’t see the changes to make the 18v bulbs work where the units are originally set up for LEDs…

Weird.

Greg

#11

It does say that the lights are tied to motor polarity. So maybe the cable plus into a connector that is set up for bulbs, whereas the LED lighting board would connect to a different connector set up for LEDs.

#12

the board is set up for full voltage and low voltage out side pin is full, center pin is around 4 volts if you look you will see the out side pin is being used.

cheers

Richard,