| Power supply 0-15V |
Regulated power supply in range 0-15V with 2N3055. |
2.93 |
8,103 |
| Li-Ion button cell battery charger |
Charges Li-Ion button cell batteries. |
2.91 |
3,839 |
| Power source 13.5kV |
Power source 13.5kV. |
2.91 |
3,595 |
| Automatic emergency light |
Automatic emergency light with charger and automatic light switch. |
2.91 |
8,541 |
| Power inverter 12V-220V |
A very simple power inverter 12V to 220V with astable multivibrator. |
2.90 |
42,386 |
| Smart battery tester and charger |
Intelligent battery tester and charger of all types of rechargeable batteries. |
2.90 |
8,734 |
| Regulated power supply v2 |
Laboratory power source with regulation 1.2-12V, fixed 5V and 12V. Current up to 1A. |
2.90 |
5,202 |
| Linear power regulator |
Linear power regulator. |
2.90 |
4,979 |
| NiCd battery charger v2 |
Another NiCd battery charger. |
2.90 |
3,745 |
| Simple power supply without regulation |
Simple power supply without regulation that delivers 12V. |
2.89 |
4,120 |
| Pulsed power supply for lasers |
Pulses red keychain laser. |
2.88 |
2,439 |
| Regulated power supply 1.27V to 25V |
Schematics of great power supply with voltage regulation with LM338K (1.27-25V, up to 5A). |
2.86 |
11,604 |
| PC AT power supply |
Schematics of PC AT power supply. |
2.86 |
2,723 |
| 5V and 3.3V from USB port |
How to get 5 i 3.3 Volts from USB port. |
2.86 |
4,535 |
| Solar battery charger |
Charges batteries from solar panel's power. |
2.86 |
5,794 |
