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RF Power AMP
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mithras
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Joined: 14 Apr 2004
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Post RF Power AMP Reply with quote
Hi

I am looking to amp my 1w FM transmitter to 40w+, i want to use the pcb from pcs and also the digram but its a bit unclear. I would be greaful if someone could give me a component list and a modded diagram to show where they go.

Thanks
Wed Apr 14, 2004 4:06 pm View user's profile Send private message
pcs
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Location: Radio Land

Post Reply with quote
You'll have to improvise a little.

Its a fairly simple diagram and it is not strictly
important where certain component goes on the PCB, but make
sure you stick to the diagram.

Think of it as a breadboard for RF amps. Handy to keep around
for testing RF amps and transistors.

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Wed Apr 14, 2004 6:11 pm View user's profile Send private message Visit poster's website
mithras
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Post Reply with quote
Thanks for the reply.

Do you have a component list? I dont understand what components
are used... whats 4/20p??? or 10p??? 270 4/2W???

A component list would really help.

Thanks.
Wed Apr 14, 2004 10:37 pm View user's profile Send private message
pcs
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Post Reply with quote
I fear you do not know enough about the basicy for this circuit.

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Thu Apr 15, 2004 10:40 pm View user's profile Send private message Visit poster's website
mithras
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Post Reply with quote
I have built transmitters, stereo encoders, chipped ps2's and xbox's - i dont need to understand what each component does...i just need to follow some proper instructions.

thanks for the reply tho
Sun Apr 18, 2004 2:47 pm View user's profile Send private message
pcs
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Post Reply with quote
If you don't know that 10p means 10pF you obviously
don't have much experience, if any.

4/20 is a trimmer, 4-20pF.

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Sun Apr 18, 2004 11:26 pm View user's profile Send private message Visit poster's website
mithras
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Post Reply with quote
If 10p means 10pF then why not put 10pf on the diagram? I have quite a bit of experience in building circuits as i can read and follow instructions.

The digram on the site only gives very vague idea.

However, bearing in mind what you have said i will have a go at building the amp and let you know what happens.

Thanks for the reply

BTW 10p = £0.10 where i come from
Mon Apr 19, 2004 10:29 am View user's profile Send private message
pcs
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Post Reply with quote
Why not put 10 pence in there than and see what happens?



_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Mon Apr 19, 2004 11:01 am View user's profile Send private message Visit poster's website
mithras
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Post Reply with quote
i tried that the first time and found that a 20p worked better i thought that after all the trouble i had getting the rds to work you would be a bit more helpful and forecoming with the information - i can i was wrong

btw - its still working brilliant!
Mon Apr 19, 2004 11:41 am View user's profile Send private message
pcs
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Post Reply with quote
Let me know if you have any more problems.

I think we're clear for now, no?

Have fun!

Marko

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Mon Apr 19, 2004 12:30 pm View user's profile Send private message Visit poster's website
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