DT Tx23 Transmitter Kit






DESCRIPTION:
This kit includes the core components to make a Tx23 transmitter.
Tx23 is a compact wireless transmitter intended to control 1-3 model railway train engines.
It has controls for Speed, Direction, Inertia and Lights (depending on how used).



KIT CONTENTS:

QtyItem
1Medium plastic box
3Direction toggle switch
1Bind pushbutton
1On/Off pushbutton with Led
410k pot 300° rotation with center click (detent)
3Medium Speed knob
1Small Inertia knob
610k resistorBrown-Black-Orange-Brown
21k resistorBrown-Black-Red-Brown
1PP3 plug
1Tx2
50mm30mm heatshrink for Tx2
1Plastic sheet for battery compartment
1Wiring diagram
1Drill template
1This page (www.DelTang.co.uk/tx23-kit.htm)

OTHER ITEMS NEEDED:
PP3 9v battery, hookup wire.
Solder, Iron, Multimeter, Glue, heat-shrink tubing, Drills, Files, Knife, Screwdrivers etc.

WIRING DIAGRAM:
v202
v204 and higher

DRILL TEMPLATE:
Tx23 layout

NOTES:
1. The circuit diagram shows the required connections.
2. The 'Tx2' radio module is usually powered with a 9v battery. Some exceed 10v when new which exceeds the Tx2 specification. So the supplied 1N4148 diode is an optional component used to reduce the battery voltage by about 1v.
3. Tx2 has an on-board regulator which provides a 3.1v reference voltage to the other components.
4. The 2 longer wires in the middle of the on/off switch are 'Led2'. The shorter of those is marked '-' and goes to negative.
5. The on/off switch has an anti-rotation ridge that makes its diameter larger at that point. File a notch in the box to avoid crushing the switch.
6. The pot has a protrusion to prevent body rotation. This is not needed and can be cut off with side-cutters or hacksaw.
7. The Tx2 module can be protected with with the heatshrink covering provided.


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