| Part | Total Qty. | Description | Substitutions |
| R1 | 1 | 100K 1/4W Resistor | |
| R2 | 1 | 150K 1/4W Resistor | |
| R3 | 1 | 10K 1/4W Resistor | |
| R4 | 1 | 1K 1/4W Resistor | |
| R5 | 1 | 22 Ohm 1/4W Resistor | See "Notes" |
| C1 | 1 | 10nF Ceramic Disc Capacitor | |
| C2 | 1 | 1uF Electrolytic Capacitor | |
| D1, D2, D3 | 3 | High Output IR LED | |
| Q1 | 1 | 2N4403 PNP Transistor | |
| Q2 | 1 | 2N4401 NPN Transistor | |
| S1 | 1 | Normally Open Momentary Push Botton | |
| B1 | 1 | 4.5V Battery (Three "AA"'s In Series) | |
| MISC | 1 | Wire, Case, Board
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- Email Carl with questions, comments, etc.
- You may need to adjust the value of R3 for the right frequency. A pot can be used.
- You may only need one IR LED.
- It goes without saying that this circuit should be used with descretion.
- The value of R5 depends on your supply voltage and LED. For a standard 4.5V supply and standard IR LED, use 22 Ohm as specified on the parts list. This forum topic covers this resistor as well as a few other issues with the circuit.
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