Hambrew Links

Close VLF Projects

Close 136 kHz Projects

Close 472 kHz Projects

Close 500 kHz Projects

Close Multiband HF Projects

Close 160m Projects

Close 80m Projects

Close 60m Projects

Close 40m Projects

Close 30m Projects

Close 20m Projects

Close 17m Projects

Close 15m Projects

Close 12m Projects

Close 10m Projects

Close 6m Projects

Close 4m Projects

Close VHF Airband

Close 2m Projects

Close 70cm Projects

Close 23cm Projects

Close 13cm Projects

Close 9cm Projects

Close 6cm Projects

Close 3cm Projects

Close 1,25cm Projects

Close EHF Projects

Close Antenna Matches

Close Shack Accessories

Close Power Supplies

Close Test Equipment

Close µController Arduino

Junk Box Circuits

Close Tubes

Close Transistors 2N-Serie

Close Transistors BC-Serie

Close Transistors BD-Serie

Close Transistors BF-Serie

Close IC 74XX-Serie

Close IC 74LSXX-Serie

Close IC 74SXX-Serie

Close IC LM-Serie

Close IC TDA-Serie

HF Propagation


   visitors online


Transistors BC-Serie - BC549

Datasheet BC549 Philips

137kHz Low Power Transmitter by DF3LP
This is a very short description of my tiny low power cw transmitter for long wave. Depending on the PI-Filtercomponents and voltage for the final stage this transmitter would be able to reach the 100 Watts output level.

A very simple VLF Pocket receiver by DJ1WF
The following receiver concept may give an idea how to build a tiny and sufficiently performant RX without using expensive filters.

Click to enlargeFrequency Divider by one transistor BC549
This circuit designs to upward for divide by the frequency of a signal input , give down left just the half then to export come to the way output.

Click to enlargeLow Power FM Transmitter
This low power fm transmitter is designed to use an input from another sound source and transmits on the commercial FM band. This low power fm radio transmitter it is actually quite powerful…

Click to enlargeMultipurpose VFO For Your Rigs by VU3NSH
The Frequency instability in VFO stage is a common problem. This is usually occurred in VFO's due to low “Q” of the tank circuit, capacitors real value, power supply regulation, stray capacitance, lead inductances and over feed back levels etc.

Click to enlargeSimple audio amplifier
This simple circuit can be used to boost the signal sources that are not able to excite your amplifier, or from entering your PC, such as microphones for low and medium impedance, sound-heads, guitar pickups, guitar, etc.

Click to enlargeVideo amplifier splitter by transistor BD137-BC547-BC557
This is the video amplifier circuit or the video splitter circuit, it is designed to take video signal is stronger. Compensate for the loss of signal, and is video splitter video, which can connect up to three outputs. so is suitable for display on several television screens at the same time too.

Creation date : 29/12/2012 @ 22:24
Last update : 09/09/2018 @ 22:46
Category : Transistors BC-Serie
Page read 20023 times

Print the article Print the article

Google Ads

^ Top ^