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You seriously must do the complete song its awsome my man.

great video!

How’s it sound?

Schmatics please

Where is the gain pot?

I played this one live at Bogside last weekend, love this tune.

Youre a sage thank you for the knowledge

HI

Nice one mate! Awesome band, also love the Starcaster! Underrated guitar I think

So this works to turn up the audio on an entire video? I edited an hour long video and painstakingly made sure my audio wasn’t in the red but, I must’ve done too much because the audio is way too quiet. Weird cuz it sounded ok in Divinci on my computer.

The beginning part of the solo I always improvise, seeing this helped thanks man

Running the wires through the mounting holes on the resister can melt the wire when the resister heats up Best to use the mounting holes for their intended purpose and screw the resister to a large heatsink

Great video. If someone wanted to build this amp. How would the correct transformers for the power input and for the speaker. What is the ohms for the primary input of the speaker transformer. Interesting that the high voltage from the output going to the heater of the 5y3gt doesn't burn out the 5 volt winding of the output transformer. I know some stuff about electronics, but more then some beginners do. Do you have any information or numbers as to what transformers would work for this amp Thanks for your time.

Thank you

I appreciate this video a lot. Thanks for being so clear and just talking like a normal person😂

Amazing tone man, what gear/equipment did you use to get this killer tone?

This amplifier bad😢

At first I thought it was Rainn Wilson

By any chance did you see what the tubes had for a manufacture? I just have in white ECC-83 12AX7, I know that's the tube type, didn't know if you had the same or not.

I bet you say caulking instead of cocking too? 😅

What does the F mean on the screen ?

My just quit all of a sudden ,there is a F on the screen what does that mean?

What I dont get is with what kind of physics tubes can get dc power from same cable that our instrument signal is going on , I know I can put effort and find it online and I will , just sharing what I think most newbies like me will ask too Thx for the awesome video

As a new builder, this is excellent, I look forward to more!!!

Nice, cheers 😊

"Yeah!"

Excellent discussion. Thanks.

Wish I had you on my team 🫡

Sounds like some pretty decent stoner doom, tbh. I dig it though - if you do another track, maybe add some poly-metering (but not too much) and I would be hooked!

I think you should have explained how the current through the tube gets amplified. If I was a beginner, I would find this very confusing.

Nice work 😊

Really enjoyed this video. Brings back memories from HS electronics class ... a very long time ago.

Except for the lack of a dummy load, this is just like the MTI Tubes preamp.

Wow, Nardwuar knows all about tube amps. Who knew??

I know you don't have a huge number of views and comments but believe me, it's coming to the right people. I really appreciate you making this as it has cleared up many questions for me. It's literally us or nothing, these amplifiers exist on the community that support them. Please keep doing what you're doing, I'd love you to get into the nitty gritty as you said and share your knowledge with us.

Just helped me fix my Squier Telecaster. Never soldered anything before and I feel so proud lmao. Thank you!!

@3:25 FULL BRIDGE RECTIFIER!!

Tell me how much to pay you, to build me one just like it, but that has a lot of gain, to push the input into pretty strong distortion. I mean, really pile it on hard, with a 12AX7 in, and in/cranked....that way I have lots of variation in sound character across various makes of 12AX, AU, AT's..... Edit: Oh, and tell me how to pay you. I'm trying to get exactly what you just built, to experiment with my 12AX, 12AU, 12AT collection, RIGHT HOW!!!! My new studio REALLY NEEDS what you just built! 😁

Shouldn't the top of the 100R heater resistors be connected to ground instead of the wire from the P.T.'s secondary winding?

I have built a number of audio devices, including tube preamps based on Paia Electronics kits. Those were starved tube designs, so this preamp was interesting because it uses higher voltage. Did you design this preamp to generate tube distortion within the preamp, to overdrive a tube amp, or perhaps some of both? I might attempt building a preamp like this if I am confident that I can avoid the dangers of high voltage. Thanks for doing this video.

Wow! Thanks for the shout out! FYI - When looking at power transformer specs, if you see VCT, that means "Voltage; Center Tapped". So, in that first example you show (the 290WX @ 28:33), the filament is already center tapped. You do not need to create your own. Whenever you see V by itself, it isn't center tapped. Whenever you see VCT, it is center tapped. Also, at 30:28 when you go to Hammond's website, you're actually only looking at a very small list of their transformers in the 200-series. Their website is very convoluted in that regard. They make many thousands of transformers, with hundreds of them suitable for tube amps, and there is no single comprehensive list of all of them. You have to look in multiple places, under multiple categories to find all the different ones that might work. Here's a secret... If you're building off of a popular existing schematic, like a Champ/5F1, it's much easier to just use their "Guitar Amp Replacement Transformers" page to find them. It is linked in the header of all of our transformer category pages visible at 26:19. Or, you can find it on Hammond's website by going "Transformers > Classic Transformers > Guitar Amp Replacement Transformers". There, they list the dedicated guitar amp transformers by amp brand and model name. So, you can just look up Fender, Marshall, etc, find the model of the amp, and they list recommendations for that model. For example, you're building a Champ. They have a page dedicated to the Champ. Sadly, again, they do not list all possible transformers that would work, just the ones they specifically design for those amps. If you really dig through all of their transformer sections, you'll find many others with specs that will work. But those 290/291/1750/1760-series ones are designed specifically as replacements/upgrades for those classic guitar amp circuits. Keep up the awesome work! Can't wait to see how the amp turns out!

Ive been building pedals, guitar, amps (tube and solid state) and restoring vintage radios/receivers (when i get the chance) for years. My last project was a Fender Champ type amp with solid state rectification and optional output tubes. I used a cathode lift switch to select either the stock 6V6 or and EL84 for the output. Each of the power tubes pins are basically in parallel except the cathodes whicn go to a ground lift switch and each tube has its own grid resistor. I got the idea from the Mesa Blue Angel line of amps. I had to work out how to do it on my own from a few similar schematics but none were available for a Champ circuit. The EL84 needs less input signal so its quite a bit louder all other thing being equal compared to the 6V6 especially when the negitive feedback loop is bypassed, it also brakes up quicker than the 6V6. Both tubes work great in that circuit. Its also got a handful more mods. Anyways point was that this would be a great project for anyone wanting to build their first tube circuit. The power section is where things get a bit more dicey but by building a preamp first you learn about biasing and bypass caps etc. This would also be a great project for someone who wants tube tone without the cost of having to buy expensive power tubes about once a year. You could pair this preamp with a solid state power amp and an eq pedal and youd be set. Or ecen better you could add a FMV tone stack to the preamp (or banxandall if you want more shapeability). Building your own equipment is incredibly satisfying and i cant recommend it enough. Now that you got me thinking about it i just might build a vavlestate amp next. My Marahalls powertubes are starting to go again and thats another $140 for a new quad (which needs replacing every year to year and a half) so having a valvestate would give me the benefits of my solid state amps while having a warmer more pleasing tube preamp response. And if i did my daily practice with that amp i could seriously extend the life of my powertube in my all tube amps.

There is no "290X" in the Hammond catalog. There's always another letter like 290somethingX. I think the closest to what you describe is the 290XX.

Heck yeah buddy

🤝🤝🤝

I'd love to see an explanation of picking component values, etc!

Nice one mate just found youre ch , I’ve just started my frst guitar build ,custom 😂.so Thnks for the help I’ll get ,🏴󠁧󠁢󠁳󠁣󠁴󠁿

Looking forward to seeing more of the "combo amp series". It's great hearing you explain your thought process

Lovin’ it

Well that was fantastic. I straight up loled with that "and now it's ready for my dog to chew through again" after 20 minutes of non-trivial work 😆 If only you had affiliate links 'cause now I gotta buy some of that shrink tubing stuff! Anyhoo, thanks. I'ma make my dog watch this.