Peavey T-40 bass pickup specs?

[salvarsan]

Need specs for an upcoming rewind.
DC resistance would be sufficient.

The older T-40's were wax-potted and relatively accessible
for repair (unlike much of Peavey electronics) so this one
has a good chance of success.

thanks all,
-drh

[Dave Kerr]

I came up empty for specs, but did see this contact info for the T40/T60 dude:
chipscorner
chiptodd@austin.rr.com

[Enzo]

Have you tried asking Peavey? Someone there like Anthony John should be helpful.

[salvarsan]

Chip Todd, the T-40 designer, responded quickly and forwarded
my question to the pickup builder, R.T. Lowe.

We'll see if he has interest in replying.

One old forum mentioned a 13k DC resistance for both coils combined.
The core is a blade, interestingly.

Thanks again,
-drh

[David Schwab]

On the newer pickups you could see the blades. They were exposed, right up the middle of the black plastic area. They looked pretty thin too.

[salvarsan]

R.T. Lowe, the pickup's creator, reports that each coil is 3750 winds of #42.

Chip Todd, who built the T-40 bass, maintains a web site and referred my question to R.T.Lowe.

Good guys, both of 'em.

-drh

[xaxxat]

My Toasters average 2.8k per coil. My Blades average 5.3k per coil.

My pups are epoxy potted, not wax potted. The epoxy is a pain in the butt to remove. The first one I stripped took several hours. The bobbin is plastic so one needs to be very careful with it. The wire is a red coated 42 awg type. The pups have a weird soldering post sticking out from the bobbin. These can be brittle as I broke one when bending it out of the way. These pups were designed for manufacturing ease and not rework. I had 2 pups lose a coil because the wire broke. It looks like a combination of brittle wire and shrinking epoxy dit it.


I haven't wound mine yet but will do a 4 wire connection when I do. The 3 wire is just hokie. I did do a 4 wire mod to one and it makes series/tap/parallel switching so much easier. Wiring to a 4 pole 6 throw rotary switch offers a bunch of possibilities. Plus, a 4 wire gives back a real tone control. I'm contemplating rewinding most of mine. I have both Essex red wire and Heavy Formvar 42 awg. I'll probably replace the soldering posts with brass eyelets. Wax potting is a definite.

The 3750 winds of 42 awg sounds about right for 2.8k.