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Vintage threads from the first ten years

Bobbins

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2/16/2006 12:45 AM
Cactus Curtis	Bobbins I saw an ad locally for pickup bobbins (in Australia) and they just described the bobbins as PBT or ABS material. Can someone briefly tell me what the initials stand for? I know vintage pups were made from Forbon normally but just wondering waht these PBT and ABS stands for. These would be plastics I assume.

2/16/2006 2:16 AM

I thought everbody knew that ABS was Acrylonitrile Butadiene Styrene and PBT (Valox) is Polybutylene Terephthalate.
Does this help? ;-)

;-)

OK... I Googled it.

ABS is one of the most commonly used plastics.

Maximum Temp.: 160° F
Softening Temp.: 175° to 220° F
Tensile Strength: Good
Impact Strength: Excellent
Good electrical insulator,
Machine with standard tooling
Hardness: Rockwell R105

PBT
Chemical resistance
Outstanding dielectric strength
Outstanding electrical properties
High RTI up to 284° F (140 C)
Low temperature performance down to -40° F
Flame resistance

Typical applications for Valox include:

Electrical/electric connectors
Smart network interface devices (SNID's)
Power plugs and electrical components
Switches and controls
Circuit breaker enclosures
Outdoor telecommunications enclosures
Automotive under-hood components
Electrical appliance components
Fiber optic tubes
Medical applications such as clamps, pump parts, plugs

I have my bobbins molded from PC - Polycarbonate (Lexan)

2/16/2006 7:06 AM
Cactus Curtis	Thanks Fred. That has helped indeed. Many thanks for that

3/20/2006 12:19 PM
David Schwab	Hey Fred, I assume you have custom bobbins made? Or do you make them your self? I'm about to start making some custom design bass pickups, and I'm trying to find info on having plastic parts made, like covers and bobbins. These would be EMG 40 style soap bars. Any advice/info you (or anyone else reading this) care to share? Thanks David

3/21/2006 7:32 AM
MK	Is the plastic used for PC's (computer and printer exterior) suitable?

3/23/2006 12:18 PM
Mickey Boy	Hey Curtis , I'm in Australia too , where are these bobbins? how much etc?

4/2/2006 8:38 PM
Mickey Boy	Yah , don't worry about it , just picked up 500 pairs . Mick

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