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JJ: Zwei Singlecoils

Circuit  JJ1

A circuit with three controls, two of them volume and one tone, without a switch is widely used. Only a single volume regulator is smarter for practical stage operation. A hole will be free during the conversion; So two tone controls can be connected, one for each pickup. A Megaswitch T enables individual and parallel switching.

1. Bridge

2. both in parallel

3. Neck

 

 

Switching functions

 

JJ-1A

 

 

 

Electrical switching principle

 

JJ-1B

Bass with Megaswitch T, three potentiometers

 

JJ-1C

Wiring diagram with Megaswitch T

 

JJ-1D

 

Bass with Megaswitch T rotary switch, three potentiometers

 

JJ-1E

 

  

Connection of the rotary switch before installation

 

JJ-1F

 

 

Wiring after installing the rotary switch

 

JJ-1G

 

 

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Circuit JJ2

This is a simplified version of circuit JJ1, intended for basses with only two controls (1x volume, 1x tone).

1. Bridge

2. both in parallel

3. Neck

 

 

Switching functions

 

JJ-2A

 

Electrical switching principle

 

JJ-2B

 

Bass with Megaswitch T, two potentiometers

 

JJ-2C

 

Wiring diagram with Megaswitch T

 

JJ-2D

 

Bass with Megaswitch T rotary switch, two potentiometers

 

JJ-2E

Connection of the rotary switch before installation

 

JJ-2F

 

Wiring after installing the rotary switch

 

JJ-2G

 

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Circuit JJ3

With this circuit, both pickups are connected in series when the switch (Megaswitch T) is in the middle position. This results in stronger bass and mids as well as fewer highs. Only one tone control makes sense here.

1. Bridge

2. both in serial

3. Neck

 

 

Switching functions

 

JJ-3A

 

Electrical switching principle

 

JJ-3B

 

Bass with Megaswitch T, two potentiometers

 

JJ-3C

 

Wiring diagram with Megaswitch T

 

JJ-3D

 

Bass with Megaswitch T rotary switch, two potentiometers

 

JJ-3E

Connection of the rotary switch before installation

 

JJ-3F

 

Wiring after installing the rotary switch

 

JJ-3G

 

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