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Qrp Am transmitter idea with schematic

 
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Qrp Am transmitter idea with schematic
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daretodream
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Joined: 30 Nov 2003
Posts: 4

Post Qrp Am transmitter idea with schematic Reply with quote
Hi all,
Great site!!!

I have come up with a low power am tx.Maximum modulation is 85%.Should be ok for a small town or village.

Schematics will be posted soon.

Very Best Regards from joy
Sun Nov 30, 2003 9:01 pm View user's profile Send private message
daretodream
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Joined: 30 Nov 2003
Posts: 4

Post Re: JOY TO THE WORLD Reply with quote
Please take a look at -

http://www.geocities.com/amtx2003

What do you think?

YS,

joy
Mon Dec 01, 2003 2:11 am View user's profile Send private message
R_QRP
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Joined: 01 Oct 2003
Posts: 30

Post Reply with quote
Why not try this one for SW AM QRP:

http://www.geocities.com/radio_qrp/

What do you think now?

73s de R_QRP
Mon Dec 01, 2003 9:32 am View user's profile Send private message Visit poster's website
daretodream
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Joined: 30 Nov 2003
Posts: 4

Post hi Reply with quote
Hello Radio Qrp,

Yes seen those schematics.Great site of yours!
I made poppet part15 transmitter.It uses solid state modulation but distortion figures were high.So a voltage follower was added which could suppy more current without loading the lm386 chip.Now one could have 2 watts output on peaks.

Last year I got frustuated trying various modulation transformers hehe that's why I now prefer solidstate modulator.

Very best regards from joy




R_QRP wrote:
Why not try this one for SW AM QRP:

http://www.geocities.com/radio_qrp/

What do you think now?

73s de R_QRP

Mon Dec 01, 2003 6:11 pm View user's profile Send private message
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