Here is a chart I made in response to a question about direct 12ax7 substitutions. There are more than most people realize. The RCA manual designates the pinout as "9A", so I've included all "9A" pinout tubes here.
I've included all the industrial and military designations of these tubes also (where applicable), and arranged them in order of amplification factor. I did not include European designations like ECC83, etc. Hope this helps someone with their experimentation. As for which of these will work in certain applications, you'll have to do more research and conduct your own experiments. Generally, if a 12ax7 is called for in a certain position in one of your amps, probably any of these tubes will work as a drop-in substitute. The lower the amp factor, the less gain you'll get from that stage, which might be desirable. If the stage is a cathode follower and calls for a 12AT7 or 12AU7, subbing a 12AX7 or another of these tubes might create issues. I encourage you to experiment. This would actually make for a nice video comparing as many of these as possible. I think I have most of them in my tube collection already. If you'd like to see a video like that, let me know.
I posted this as a live stream earlier today, but as with most of my more controversial live streams on YouTube, I usually either take them down or put them behind a paywall within a day so as not to give my enemies an easy way to attack me. If they want to attack me, I would rather make it slightly harder for them. As I say in the video, whether someone is Jewish is not material to me. That fact alone does mean I cannot be someone's friend. I have Jewish members of my extended family, in fact, who I love and would also fight for. But when Israel (which happens to be a Jewish state) starts behaving like a mafia and using their collective power to attack people I care about to deprive my family of power or access to resources, I start to get angry. Now you're acting like a mafia. Now you're fucking with my world. At some point we have to fuck back. More to come on this as my thoughts evolve, but at this point, I'm seeing no good way forward other than punishing the GOP who take their ...
Not sure if this is something I'll ever publish on the channel, so I thought I'd include it here as an exclusive. Enjoy!
In this video, I put on the cloak of a preacher and talk about why the modern state of Israel spoken about in Genesis 12 is NOT the same as the modern state of Israel we see today and why this idea that we should never oppose Israel is a false teaching. I will back my argument up with Christian scripture. This is something I've never attempted to do before - offer up a Biblical teaching. I do not feel qualified at all. In fact, I am probably one of the least qualified preachers on earth. But maybe that's why you should listen anyway. If you have more to add, or if you have a rebuttal, feel free to comment. I'm all ears and willing to learn more.
I voted for Donald Trump 3X. I have NEVER voted for a single Democrat and I have vowed in the past I never would. But this November, I'll be voting STRAIGHT TICKET DEMOCRAT, and I'll tell you exactly why...
Trump told us he wanted "no new wars" and yet here we are. He started a war with Iran because Israel told him to. This is the same country that just, through billionaires like Miriam Adelson and others who are dual citizens of Israel, bought an election in my home state of Kentucky for $30M. Trump helped them. And why? Because Thomas Massie dared to demand we hold the participants in Epstein's obvious honeypot blackmail scheme to account and we stop sending billions of foreign aid to Israel.
Trump has betrayed his base on every conceivable front, and yet many boomer Fox News watching retards still make excuses for him. There are enough completely uninformed sheep in the GOP to unseat the best congressman of our time when enough foreign money is poured into the campaign with enough ...
