The above circuit produces an OFF delay of 30 minutes. The switch SW1 can be thrown on the other side at starting to get a 30 minute ON delay. The capacitor C2 can be changed to get various timings. The required load can be connected in place of LED D1
| Authors | Jayapal Ramalingam |
| Main Document | Article «Long delay timer sans large capacitors» |
| Description | Figure 1 |
| File Format / Size | PDF / 19 Kb |
| Document Language | English |
