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Johnson Valiant Audio Modifications – W8JI Website
https://new.w8ji.com/johnson-valiant-audio-modifications/
Valiant. I found many mods did nothing, and a few that actually hurt performance. I added negative feedback from the secondary of the modulation transformer to the cathode of the 6C4. I did this through a .01uF 2kV capacitor in series with a 2 megohm HV resistor. Reversing the modulator plate caps is sometimes necessary to get
Johnson Valiant Audio Modifications
https://www.w8ji.com/johnson_valiant_audio.htm
Johnson Valiant Audio Modifications. Amplitude Modulation Heising Modulation. After extensive search, review, and testing, I wound up doing minimal modifications to my Valiant. I found many mods did nothing, and a few that …
Valiant Mods - Amfone
http://amfone.net/ECSound/Valntmods1.htm
Johnson Viking Valiant Audio Mods. by Keith, WA1H Call 603-548-0125 anytime to talk about your Johnson! Here is the audio section schematic for the Viking Valiant Audio Mods. I have a few versions of the schematic. your format. These have been done & redone over the years by myself - WA1HZK, Tim-WA1HLR, Chuck - K1KW , Brent - W1IA & Mike - N1IW
Audio Mod Ranger Valiant – W8JI Website
https://new.w8ji.com/audio-modranger-valiant/
Valiant Audio Mods Johnson Valiant The Ranger and Valiant Audio System When I was first getting into amateur radio in Toledo, around 1960, I mostly listened to 160 meters. I was awestruck at how powerful and clear Ranger and Valiant …
Audio Mod Ranger Valiant - w8ji.com
http://www.w8ji.com/Johnson%20audio%20mods.htm
My Valiant Audio Mods. Johnson Valiant . The Ranger and Valiant Audio System. When I was first getting into amateur radio in Toledo, around 1960, I mostly listened to 160 meters. I was awestruck at how powerful and clear Ranger and …
Audio Mods for the Johnson Valiant Transmitters - AM Window
http://www.amwindow.org/tech/htm/valiantaudio.htm
I have found that most of the noise picked up by the Valiant audio system gets introduced in that first stage mic preamp. Getting rid of that stage and feeding the audio into the "phone patch" input works perfect. The stage will now require about 1/2 volt P-P audio to function. To get your front panel audio level control to function you will need to rewire it to the second stage audio …
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