This circuit can be operated using dc 6 12v supply.
Transistor flasher circuit diagram.
I have many ways but today you see this three of the lamp flasher circuits.
1 in above circuit can the blinker time be adjusted like on for 1sec and off for 1 sec.
The circuit is using 2n3904.
The flash rate can be adjusted by changing the value of 1k resistor used in the circuit.
Power transistors may be added for handling higher current loads.
In the second circuit a power fet is used in place of the npn.
The circuit is using single transistor as driver which is taking flash rate from the led 2 which is a self flashing led.
The two circuits below are typical connections.
Circuit diagram blinking led circuit.
Use 9v or 12v battery or adaptor for this circuit.
Both npn transistor you can use of bc547 548 or 2n2222.
The transistors do not necessarily have to be bc547 you may use 2n2222 or similar small signal transistors but it is recommended to always use the equivalent transistors.
This led flasher circuit is very easy and simple and there is no ic used.
This circuit basically works on the charging and discharging of capacitors.
And instead of led how can i connect transistor which can act as a switch the transistor switch will be on for 1sec and off for 1sec 2 the circuit diagram is shown in the link below.
If you want one a lamp flasher circuit using transistors that flashing for general to use.
Can be used on roads for signaling purposes.
Here is a one transistor led flasher circuit which will flash a super bright led.
Which it has highlights is there are two types of transistor are npn and pnp.