Proper name for a part

[hustlerfastrack54]

Hey everyone, I have become interested in constructing a linear amplifier but have ran into a problem. Where do I find the transformers for an amp, what it looks like is 2 ferrite beads laid on there sides with 2-4 turns of wire running through the center. On the ends, it looks like cardboard that is soldered to the PCB ( I know this isn't cardboard because you can't solder cardboard silly) but thats what it looks like. Is there some where you can by these or do you buy the ferrite beads and make them yourself. This is probably a must know part for anyone building amplifiers but just can seem to think of the name to save my life. Thanks for the help

-hustler

 

[mackmobile43]

ferrite core transformers

 

[hustlerfastrack54]

Thank you mack

 

[mackmobile43]

anytime hustler

 

[hustlerfastrack54]

Oh I got one more question for you, I am looking at the Palomar HD450FET amplifier schematic and need to know what an EXCITER is. Located in the top left corner of the diagram then again about dead center coming from a relay.
Thanks in advance for your patience,

-Hustler

 

[Robb]

IIRC, the 'exciter' is the term used to describe the amp driver.

 

[mackmobile43]

Oh I got one more question for you, I am looking at the Palomar HD450FET amplifier schematic and need to know what an EXCITER is. Located in the top left corner of the diagram then again about dead center coming from a relay.
Thanks in advance for your patience,

-Hustler

This amp does not have a drive stage so not having the schematic I would say it's probably the bias stage which produces 4 to 6 volts at the gate of the final devices.

 

[Captain Kilowatt]

Oh I got one more question for you, I am looking at the Palomar HD450FET amplifier schematic and need to know what an EXCITER is. Located in the top left corner of the diagram then again about dead center coming from a relay.
Thanks in advance for your patience,

-Hustler

The word "exciter" is used to mean the driver RF power from the transmitter. Note on the relay on the schematic the input labeled TXMTR1 which is the transmitter input. It goes to the relay and then is switched to the FET's. If you follow the path the TXMTR1 becomes EXCITER.

 

[hustlerfastrack54]

Sorry for the delay responding back to every ones replies, thanks for the information. I am trying to learn as much as possible, I've learned a good bit so far but still have a lot left to go, mainly trying to learn schematic reading and component identification. Is there a better suited area on the forum to discuss CB Amplifiers, as I am sure I will have plenty more technical questions before this project is over. Things like filtering and such, well thanks for all the help so far.

-Hustler