Unknown OT - color codes?

Olaf · Post by **Olaf** » Fri Dec 21, 2007 6:19 am

I need some help guys, a friend gave me a (black) OT, labelled "60 OT, 9960312".
I can measure the primaries with my DMM, but what about the secondaries? My guess is that this is a Heyboer . . . .

prim are: brown, blue, red
sec are: yellow, orange, green, black

Any idea how I can see what's common, 4, 8, and 16?

Thanks a lot

Olaf

JerryP · Post by **JerryP** » Sat Dec 22, 2007 6:42 pm

Run a 1K 1V signal into the primary and measure the secondary. You should be able to figure out which wire is which.
Jerry

JerryP · Post by **JerryP** » Sat Dec 22, 2007 6:53 pm

Peavey uses those colors. For Peavey red is the center tap of the primary. On the secondary black is common, green 4 ohm, white 8 ohm, and orange is 16 ohm. I'd try that when measuring it. Does it have a flat plat of steel on the bottom for mounting with 4 threaded holes for screws? That would indicate another sign of a Peavey to me.
Jerry