Thanks! I would have to say that border walls work good to keep undesirable things out of areas where they dont necessarily belong. RF is no different. Hahaha
Thanks man, I really appreciate it. That was one of the reasons I decided to start my channel a few years ago. Number one was to provide unbiased and honest info about amps. Number 2 was to provide an alternative for people to be able to see inside a box and to know what value components I have used. Unlike a few builders out there that forbid their customers from sharing pictures of the inside of their boxes. ( Must be some space tech in there, top secret first class garbage. Hahaha)
Very next level stuff Tony . Great video and very interesting . I’ll have to read into the original story . I love how challenging bets and bragging rights between smart people raise the bar and open up the door for the once impossible !
That a nice circuit. That always best practice to use center tap on filament transformer. It it possible the transformer they had was not taped . But if you are having one made just ask for tap . I seen multi tap on primary. This is good to correct for line voltage. Naturalization can be done with triode' and pentode' as well . helps keep tube stable and clean on SSB. You still can cathode drive but loose power gain. That 9:1 UNUN is the same used in a random wire antenna . You can wrap with RG 400 or use trifeller wind of PTFE or mag wire. In this case you want better isolation and less RF leakage from UNUN. Coax much better , For multi band antenna the mix 61 ferrite works good for high power. Also type 52 and 43 ferrite also work. just pick for the bands you want. You will find this tetrode circuit more efficient for plate input power to watts out than triode amp. When you do full power test let us know current on the mains . 73
Great Video once again Tony. Also a great job tip toeing around a few sensitive subjects 😉🤣
Thanks! I would have to say that border walls work good to keep undesirable things out of areas where they dont necessarily belong. RF is no different. Hahaha
Bro...I'll say it again...best builder on TH-cam. No secrets. Schematic and all your the mvp
Thanks man, I really appreciate it. That was one of the reasons I decided to start my channel a few years ago. Number one was to provide unbiased and honest info about amps. Number 2 was to provide an alternative for people to be able to see inside a box and to know what value components I have used. Unlike a few builders out there that forbid their customers from sharing pictures of the inside of their boxes. ( Must be some space tech in there, top secret first class garbage. Hahaha)
Very next level stuff Tony . Great video and very interesting . I’ll have to read into the original story . I love how challenging bets and bragging rights between smart people raise the bar and open up the door for the once impossible !
Yeah the original design, the guys built this thing in a sb220 case basically. Pretty incredible stuff.
That a nice circuit. That always best practice to use center tap on filament transformer. It it possible the transformer they had was not taped . But if you are having one made just ask for tap . I seen multi tap on primary. This is good to correct for line voltage. Naturalization can be done with triode' and pentode' as well . helps keep tube stable and clean on SSB. You still can cathode drive but loose power gain. That 9:1 UNUN is the same used in a random wire antenna . You can wrap with RG 400 or use trifeller wind of PTFE or mag wire. In this case you want better isolation and less RF leakage from UNUN. Coax much better , For multi band antenna the mix 61 ferrite works good for high power. Also type 52 and 43 ferrite also work. just pick for the bands you want. You will find this tetrode circuit more efficient for plate input power to watts out than triode amp. When you do full power test let us know current on the mains . 73
Thanks for your input!