sv_clintrace999
New Member
Hi to all!
I have made this 13.8V Regulated Power Supply of mine which I used for my portable vhf transceiver so that i can get rid of using it`s battery pack when i'm at home. But this power supply produces a humming sound output for the receivers which is very annoying to hear, my fellow Ham said i should put a lot of high valued electrolytic capacitors to the output but seems nothing had happened. The transformer that i used was a 3amp. 12vac and now i am asking for your help so that i can get rid of that annoying sound when i listen to another portable radio, Did i missed something perhaps a components for the schematics or there`s another schematics for removing that hum? I guess there`s somebody which is a Ham here or knows about tansceivers please help.
Salamat,
Clint
I have made this 13.8V Regulated Power Supply of mine which I used for my portable vhf transceiver so that i can get rid of using it`s battery pack when i'm at home. But this power supply produces a humming sound output for the receivers which is very annoying to hear, my fellow Ham said i should put a lot of high valued electrolytic capacitors to the output but seems nothing had happened. The transformer that i used was a 3amp. 12vac and now i am asking for your help so that i can get rid of that annoying sound when i listen to another portable radio, Did i missed something perhaps a components for the schematics or there`s another schematics for removing that hum? I guess there`s somebody which is a Ham here or knows about tansceivers please help.
Salamat,
Clint
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