Some of our customers tell us that they put their assembled breadboard circuit in a project box and then replace the supplied potentiometers with larger, linear taper potentiometers that they mount on the project box. So we decided to begin stocking these potentiometers together with some other parts that we've found to be useful. 

Potentiometers and knobs

These linear taper potentiometers can be mounted on a project box. They provide easy adjustment of trigger sensitivity and delay. LP1k  Linear taper potentiometer, 1k - $1.45 LP10  Linear taper potentiometer, 10k - $1.45 LP100  Linear taper potentiometer, 100k - $1.45 LP1M  Linear taper potentiometer, 1M - $1.45 PK  3/4" hex knob - $1.20 - This pointer knob will fit any of the above potentiometers.

Switches

SW1  SPST min. toggle switch - $1.60 Can be used as an on-off power switch. SW2  SPDT min. toggle switch (on-on) - $1.75 Can be used to toggle between a sound trigger or a photogate as the input to a single delay unit.

AC/DC Adapter

Project Box

PBX Project Box - $3.75
This box is 5x2.5x2" (12.7x6.3x5 cm) and is large enough to place one of our breadboards inside.