M: Ein Humbucker

Circuit M1

There are a number of electric basses with just one humbucker, mostly close to the bridge. If this has four output wires - as is usually the case - different coil combinations are possible with a Megaswitch T: here each individually for stronger highs and both in series for stronger bass and midrange.

1. Bridge coil

2. Both in series

3. Neck coil

Switching functions

M-1A

Electrical switching principle

M-1B

Bass with Megaswitch T, two potentiometers

M-1C

Wiring diagram with Megaswitch T

M-1D

Bass with Megaswitch T rotary switch, two potentiometers

Connection of the rotary switch before installation

M-1F

Wiring after installing the rotary switch

M-1G

Connections:

position

1 spool on the bridge side

2 both in series

3 neck-sided coil

connections

1 -

2 mass

3 hot connection on neck side coil, volume control right connection, tone control slider

4 hot connection on the bridge-side coil and cold connection on the neck-side coil

5, 6, 7, 8 ̶

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Circuit M2

Here, in switch position 1, both coils are connected in parallel, switch position 2 is single-coil operation. Both positions sound rather high-pitched. In switch position 3, both coils are connected in series, which results in stronger bass and mids and less highs.

1. Both in parallel

2. Neck coil

3. Both in series

Switching functions

M-2A