Pickup Impedance

Paddy Long · Post by **Paddy Long** » 1 Feb 2004 3:04 pm

Does anyone know the impedance of BL710 and BL910 pickups ??

Thanks

David Higginbotham · Post by **David Higginbotham** » 1 Feb 2004 3:56 pm

710 30k
910 (?) probably less due to the softer tone

Ricky Davis · Post by **Ricky Davis** » 1 Feb 2004 9:22 pm

The 710's I've measured here in my shop(about 4 of them now)..have all measured 17,500.....Ohms.
Haven't measured the 910 yet > sorry.
Ricky

John Fabian · Post by **John Fabian** » 2 Feb 2004 6:21 am

710's and XR-16's are wound to approximately 30K Ohms DC resistance.

Bill Lawrence does NOT wind these pickups to a specific resistance. He winds them to a specific Inductance, 16 Henrys.

Impedance of an inductor (pickup coil) is an AC measurement of Inductive reactance and frequency dependent. The resistance is a DC measurement and is, basically, a function of the wire's diameter, composition, and length.

I suspect that Ricky is refering to the older Bill Lawrence 705's.

John Fabian
www.steelguitar.com

Paddy Long · Post by **Paddy Long** » 2 Feb 2004 12:00 pm

John and Ricky, thanks to both of you for your input - Paddy