Oh yes,That’s great! Thanks. Now we can build, measure and play too!
let me know
Oh yes,That’s great! Thanks. Now we can build, measure and play too!
I see nothing bad using a steel chassis.Do not use a magnetic steel chassis, use aluminum.
Orient the power transformer and B+ choke coils so they are 90 degrees different from both the output transformer and cathode current sink choke.
Use lots of space (distance) between the output state transformer and choke; versus the location of the power transformer and B+ choke.
Yes, this is just about the simplest push-pull circuit you can build. Yes you can take any preamp you like, and hook it up to the power section.There's so much offtopic here.
The simpler it is, the better, I'd just like to try push pull and make it amplify sound.
As I can see, yes the preamp is missing. Would it be okay to take any guitar preamp and connect it to that power section as is?
Thanks for the relevant reply!Yes, this is just about the simplest push-pull circuit you can build. Yes you can take any preamp you like, and hook it up to the power section.
Simple is good, I've preached that many times.Yes, this is just about the simplest push-pull circuit you can build. Yes you can take any preamp you like, and hook it up to the power section.
Yes, very simple.But now you need a 18Vpeak input voltage.Yes, this is just about the simplest push-pull circuit you can build. Yes you can take any preamp you like, and hook it up to the power section.
where are the test lab of this circuit?Well, it's an SRPP but with pentodes.
The result is that the cathode current of the top tube is less then the bottom one, the screen current of the bottom tube is missing. So, perhaps the cathode resistor of the top one should be a little bigger (150Ω ?).
Or making the AC and DC conditions of the top tube independent, like this.
Mona
Challenge is fun?where are the test lab of this circuit?
And why someone must have the life so complicated?
The AC15 is pretty minimalist as far as PP EL84 guitar amps go:I'm looking to build at first a guitar amp and would definitely want to try what a guitar sounds like through such minimalism, that's why saturation wouldn't matter to me. The simpler it is, the better, I'd just like to try push pull and make it amplify sound.
Simple is good, I've preached that many times.
However, that circuit, having an ultralinear tap in use with a grounded grid design, goes against traditional designs.
It's like putting cheap tires on an expensive automobile.
A 100%. That is why I started this topic in the first placeChallenge is fun?
I certainly understand you argument. There are times when what is needed is a well designed and tested plan to follow. But sometimes the journey is the goal and the process of thinking about how you could make something work even if it is a non-optimal and untested has it's own rewards.
Oooh, that's cool! Even simpler than Orange Tiny Terror.. :OThe AC15 is pretty minimalist as far as PP EL84 guitar amps go:
The AC15 is pretty minimalist as far as PP EL84 guitar amps go:
It is self-biased. The cathodes float-up to +50 or +100V. It is plenty clean enough as-is. It wastes a little B+ but the EL84 is so high-gain that drive is ample.That circuit needs a negative supply for the inopt stage,