Post reply

Name:
Email:
Subject:
Message icon:
Verification:
Unregistered users must pass a verification:



Please enter the number from the picture above which is showing FM broadcast antenna:

shortcuts: hit alt+s to submit/post or alt+p to preview


Topic Summary

Posted by: citysilverfish
« on: June 19, 2025, 12:47:34 pm »

Quote from: mtech on December 04, 2011, 01:22:37 am
There is project of 25W AM transmitter on pira.cz, but only on czech language. Did anyone else try to built it and how is works?

Here is link to project:
http://pira.cz/amtx.htmdeltarune
Yes, I’ve seen the 25W AM transmitter project — it looks solid and well-documented, even if it's only in Czech. I haven’t built it myself yet, but I’ve read that others had success with it. If you're familiar with RF basics and can translate the schematics (Google Translate helps!), it should be a good project.
Posted by: IMALU
« on: February 09, 2025, 01:22:58 am »

Hola! He montado el transmisor PIRA en AM de 25 Watts. Inicié pruebas con 15VDC y NO FUNCIONA a pesar de indica en esquema que corre desde 10 a 33VDC.
A alguien le ha ocurrido que con baja tensión de alimentación no funciona? Diseñaré una fuente de alimentación de 33VDC...
 >:( >:( >:( >:( >:(
Posted by: mtech
« on: April 06, 2012, 12:14:01 am »

Yea I worked on AM, even with tubes........was interested to built some am transmitter for fun, but still when talking AM, love to see tubes in that band :D
Posted by: DJ Adam Eve
« on: February 19, 2012, 01:41:35 pm »

Weird, I was coming on here to ask about that... I found the pdf schematic online and was after component values and info, so thanks for the link... Most of the stuff Jan designs is functional, pretty good in fact, so given that, and all the testing he's done I would say it looks good. I would just run it through Babylon or some other translator and see what comes out, if you get really struck come back to the forum... Have you worked with AM before?
Posted by: mtech
« on: December 04, 2011, 01:22:37 am »

There is project of 25W AM transmitter on pira.cz, but only on czech language. Did anyone else try to built it and how is works?

Here is link to project:
http://pira.cz/amtx.htm