I'm working on designing and building a Cyclotron which includes an RF oscillator sub-system. Since we're high school students and lack funds, we're building the system from scratch. I've done a significant amount of research on circuits and electronics, having started from little knowledge, and am still having trouble wrapping my head around RF oscillators and linear amplifiers.

The goal is to design and amplify a 5 MHz signal, that itself is very stable and has no bias, to around 300-400 watts. I've been looking into Clapp oscillators and using triodes to amplify.

I could really use any help or somebody to talk to who has experience in the field. Thank you!

 

why not use an older ham transmitter with an amplifier? an 80 meter transmitter should be able to tune to 5 mhz, and most older tube type amps should too.
cliff

 

That would be a pretty good idea but I have no idea where I could find one, let alone identify a correct one. Sure there's plenty online but how would i know it could do what I want?

 

You look at the specifications for frequency response and maximum continuous average output power.

 

5 MHz? and cyclotron?

I don't think you can build such a device to operate at such a LOW freq with a standard american working family budget.

read and reconsider your choice of amplifier configurations.

http://www.answers.com/topic/cyclotron

 

One of the original cyclotrons at the University of Michigan was built with a 15M (21 Mhz.) amateur radio transceiver. The Dees are what is going to cost you along with detectors and instrumentation.

 

Again, as I stated. Budget is going to be the biggest barrier.

Universities can easily afford multi thousand dollar projects. Working american families seldom have such financial reserves.

 

why not use an older ham transmitter with an amplifier? an 80 meter transmitter should be able to tune to 5 mhz, and most older tube type amps should too.
cliff

Can only comment on the UK market where I am - but Ham gear isn't cheap to start with, a tube PA is likely to be collectible and priced accordingly!

 

I'm a high school student. And cyclotrons are widely built for a couple hundred dollars. There is such a thing as amateur science research. All I'm asking is how to amplify a RF signal with triodes at this point.

 

Hello,

On the following page there are several links to HF amplifiers:
http://www.dxzone.com/catalog/Technical_Reference/Amplifiers/HF_Amplifiers/

I hope the RF signal is not going into free space.
When that happens you might get in trouble with the authorities.

Bertus