Seymour Duncan Zephyr Silvers

[bagman67]

Actually, I submit to you that 2.794E+20 (+/- a dozen) angels can dance on the head of this particular pin.

 

[Jeremiah]

Isn't the "secret" of Lace Alumitones that they use aluminium rather than copper? They also claim that they are a "current driven design" rather than a "voltage driven design," whatever that means.  :icon_scratch:

 

[Dan025]

Isn't the "secret" of Lace Alumitones that they use aluminium rather than copper? They also claim that they are a "current driven design" rather than a "voltage driven design," whatever that means.  :icon_scratch:

it's a completely different design. the coil is only like 3-5 turns then it goes into a copper step up transformer. i'm sure it reduces the production cost significantly. copper isn't cheap and it takes time to put all those thousands of winds on them.

 

[TroubledTreble]

Yep, the leg that the C.T.(current transformer) is attached to counts as one turn. It works just like a transformer and boost the signal enough to drive the amplifier circuit. The original design called for the main piece to be made from copper. Very interesting design.

 

[Dan025]

Yep, the leg that the C.T.(current transformer) is attached to counts as one turn. It works just like a transformer and boost the signal enough to drive the amplifier circuit. The original design called for the main piece to be made from copper. Very interesting design.

yeah. i just took a look and i kinda had it wrong. i always thought the cover was cut into a coil and was in series withthe transformer. well it's more like 1 turn or a pair of loops in opposite directions and the the transformer is more of a current probe clamped over that one loop. or you could look at it as the main plate is itself the primary coil of a transformer as well as the pickup. so yeah it's "current driven." instead of voltage being induced with a moving magnetic feild it's induced by circular currents in the main plate with basically no readable voltage. i'm honestly surprised this works at all. i wouldn't have thought it would be efficient enough to make near the output of a normal pickup. not that the efficiency matters if the load is near 0 (high ohms) but i wouldn't have thought the standard pot values and all could work in this type of arrangement.