background image

.700

.320

.155

.350

1.000

.875

      

General Operation

The B234rB is a stacked (concentric) set of 25K Ohm controls for EMG Active Pickup Systems.  The top control functions as a volume control, 
while the bottom control can be either another volume control, or by installing a shorting plug it can become a tone control. Examples are shown 
in the included diagrams. The B234rB features plug-in compatibility with all EMG Pickup Systems. If necessary, you can solder existing pickup 
cables to the wiper and ground contacts on the PC Board.  If you need left handed operation (CCW) then contact EMG directly and we can supply 
one for you. Also available is the B258rA-HZ for passive pickups (Green PC Board).

0230-0283rC

 © 2013 Copyright EMG INC. All Rights Reserved.

PO BOX 4394 
SANTA ROSA, CA
95402  USA

P (707) 525-9941
F (707) 575-7046
EMGPICKUPS.COM

1
2
3
4
5
6

Schematic Diagram:

B234rB Controls

(Both controls have a similar pinout)

IN/OUT

GND

IN/OUT

GND

IN/OUT

GND

CCW

W

CW

1
2
3
4
5
6

The EMG coax cables for wiring the guitar are a 2-pin pair, 

The signal or “Hot” wire is White, the Ground (Shield) wire is Black.  

A25K

VIEWED LOOKING AT 
CONNECTOR PINS

BOTTOM
CONTROL

TOP
CONTROL

6 5 43

SCHEMATIC NOTES:

The Schematic diagram above shows how each B234 Volume control is configured.
Pins 1 and 2 are the input or output of the CW (Clockwise) terminal of the control. 
Pins 3 and 4 are the input or output of the W (Wiper) terminal of the control.
Pins 5 and 6 are duplicates of  pins 1 and 2, the CW terminal (Clockwise).
Pins 2, 4, and 6 go directly to ground, the CCW (Counter-Clockwise) terminal of the control is grounded.

INSTALLATION INFORMATION

 

EMG MODEL: 

B234rB STACKED VOLUME CONTROLS

                      OR STACKED VOLUME/TONE CONTROLS
(ACTIVE PICKUP INPUT 25K OHM, BLACK PC BOARD)

 Pickup Cable

 Pickup Cable

Solder Pickup Hots to Input Pads  

Solder Pickup Braids to GND Pads

The B234rB has solder pads that can be used
if you do not have connectors on the pickup 
cables. 

Отзывы: