Thread: Pizza's Transmitter Build
View Single Post
  #29 (permalink)  
Old 01-20-2024, 09:21 PM
pizzaguy's Avatar
pizzaguy
pizzaguy is offline
Administrator
Join Date: Jun 2009
Location: Fort Worth, Texas
Age: 64
Posts: 13,469
Received 888 Likes on 692 Posts
Default Re: Pizza's Transmitter Build
I did it. 61 dB of carrier suppression. A lot of messing with capacitor values, wound THREE output transformers, struggled for three weeks, but I have my carrier down 61 dB with 32 to 40 dB of sidebands above that.
I will now put it in the transmitter and see how it interacts with the other stages. If it acts poorly in the transmitter, well, Im' not giving up.

The big trick was getting the new trimmer capacitor from Mouser Electronics and then playing with the audio input network. Also, I did not realize how fussy the ring is to loading effects from the audio driver , I had to use a smaller input capacitor than expected, once I did that, my sidebands looked better.

I was told, "No one can build an SSB transmitter on their own". I might be about to prove that guy wrong, but can't say for sure, yet.


 
Reply Like
The following 2 users liked this post by pizzaguy:
GraphiteGhost (01-21-2024), M60A3Driver (01-21-2024)