Stainless steel on Lawrence?

[Electricdaveyboy]

Hello!
I am searching for 3/16stainless rods like Bill Lawrence is unsing on his stacked noiseless pickups.Should be magnetic of of course.Can anyone name a source or a material number?
thanks
david

[David King]

Here's a little article with some suggestions...
http://www.mceproducts.com/knowledge...-dtl.asp?id=18

[SK66]

I have magnetic SS slugs if you need some to try.

[David Schwab]

Bill loves SS. it probably gives lover eddy currents. His blades are SS also.

SS has been on my list of things to try.

[SK66]

I've had several hundred sitting here for a couple of years....never got around to using them. I have measured thier guass transfer (if that's even a term) and it's surprisingly close to the plain carbon steel slugs. A bit softer, like A2 vs A5 maybe...maybe not even that big a difference. Would probably be "just the thing" to try to get ceramic bars to a "classic sound"

[Electricdaveyboy]

Thanks SK!

Hope you recieve my PM.
cheers
david

[JGundry]

I heard Bill uses Supermalloy for the blade pickups. Maybe I have him confused with someone else though. Or maybe it's Permalloy.

http://en.wikipedia.org/wiki/Supermalloy
http://en.wikipedia.org/wiki/Permalloy

[David Schwab]

I heard Bill uses Supermalloy for the blade pickups. Maybe I have him confused with someone else though. Or maybe it's Permalloy.

Any way of telling? I have a broken Lawrence pickup I took apart.

This particular pickup looked like an EMG with a closed cover. It had a really bright glassy tone for a humbucker.

The whole thing was potted in clear polyester resin.

The blades are very shiny.

[JGundry]

Any way of telling? I have a broken Lawrence pickup I took apart.

This particular pickup looked like an EMG with a closed cover. It had a really bright glassy tone for a humbucker.

The whole thing was potted in clear polyester resin.

The blades are very shiny.

Evidently the nickel content of Supermalloy is so high it looks nickel plated. I have no first hand experience with Supermalloy though. But I was told it was used in the blade pickup but whether or not that is really the case I don't know.

[David Schwab]

I heard Bill uses Supermalloy for the blade pickups. Maybe I have him confused with someone else though. Or maybe it's Permalloy.

http://en.wikipedia.org/wiki/Supermalloy
http://en.wikipedia.org/wiki/Permalloy

Any idea where to get either of these materials?

[David King]

Arnold has a soft magnetics division:
http://www.grouparnold.com/products/powder/index.htm

http://www.ferroxcube.com/

do a search for MPP (Molybdenum Permalloy powder)
Sendust etc

Most of this stuff seems to go into transformer cores and choke beads. I couldn't find anyone selling it in rods but I know it comes in ribbon or tape form.

It won't be cheap no matter what, even silicone steel is pricey.

[David Schwab]

I saw that... all toroidal transformer cores. I was trying to find some bars made of the stuff.

[salvarsan]

Permalloy sources

Any idea where to get either of these materials?

Carpenter Technology in Pennsylvania http://www.cartech.com

Look for trade names of HyMu-80, HyMu-800, High Permeability "49".

You can search on hi-mu alloys at http://www.matweb.com

[David King]

I signed up for the soft magnetics catalogue.
You can register to dig into the tech resources on the cartech site

Here's Matweb's take on High Permeability "49" in cold rolled bar stock:
http://www.matweb.com/search/DataShe...D=17306&ckck=1

no vendors:-(

Here's a pretty comprehensive datasheet PDF for "49":
http://www.candcmachininginc.com/CarpenterDatasheet.PDF.

This place sells round rods starting at .375" dia. http://www.edfaganinc.thomasregister...758/highpe.htm

[Possum]

....

Most of these alloys you'll find are priced like gold. I got a quote on some Carpenter stuff, it was only available in 1/2" diameter. A foot length of it was $150!!!