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HHH4P

HHH4P: three humbuckers, four potentiometers

 

 HHH4P

Overview

HHH4P-1. Switching with five positions, Megaswitch M

 

 HHH4P1A

 

HHH4P-2. Switching with five positions, Megaswitch M

 

 HHH4P2A

 

Detail drawing

HHH4P-1. Switching with five positions, Megaswitch M

There are some guitars with three humbuckers. With these, the theoretically possible switching combinations are usually not fully utilized. The circuit shown here uses a Megaswitch M Rotary, which - similar to the "Stratocaster" - enables the combinations of bridge, bridge + middle, middle, middle + neck, neck. The two volume regulators are decoupled. Installation advice: First solder the wires to the contacts on the top of the switch (A to L). Then mount the switch, then solder the wires on the underside (M to X).

Switching functions:

 HHH4P1A

Electrical switching principle:

 

 HHH4P1B

 

Connection of the switch, top:

HHH4P1C

 

Complete wiring after installing the switch:

 HHH4P1D

 

HHH4P-2. Switching with five positions, Megaswitch M

This is a variant of the HHH4P1 circuit. Positions 1, 2, 4 and 5 are the same; in position 3, bridge and neck humbuckers are connected in parallel. A Megaswitch M is also used here. Installation advice: First solder the wires to the contacts on the top of the switch (A to L). Then mount the switch, then solder the wires on the underside (M to X).

Switching functions:

HHH4P2A

Electrical switching principle:

 

 HHH4P2B

 

Connection of the switch, top:

HHH4P2C

 

Complete wiring after installing the switch:

HHH4P2D

 

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