How to approach vacuum tube circuits exploration?

[scuzzyTerminator]

Start with this:

[Kim Christensen]

Start with this:

Looks like it's AI generated.   

[Bud]

Yeah, "Pentode mjube" and "Exloring vintage electronics amufiftion" 

[BrianHG]

Second reason- radios in those days almost universally had a single ended class A audio power output stage and these by nature are sensitive to power supply ripple, so a choke helped a lot to smooth things out. Solid state stuff  almost always has a class B push pull output stage that is nowhere near as sensitive to power supply rippple.

I thought the lack of sensitivity to PSP ripple in modern amps is because of the use of a negative feedback design.  IE, the output is fed back to a negative input to be compared with the positive audio input, completely ignoring whatever the power-supply is doing.

[coppercone2]

I was going to do a tube but its alot of shit and not breadboard friendly for your first circuits.

I worked on repairing tube gear before, but I never did a circuit. Its tricky because its often HV.


You can use portable tubes (they have leads and are battery voltage friendly)

I bought a DIP-scale tube to experiment https://www.korgnutube.com/en

[Circlotron]

Second reason- radios in those days almost universally had a single ended class A audio power output stage and these by nature are sensitive to power supply ripple, so a choke helped a lot to smooth things out. Solid state stuff  almost always has a class B push pull output stage that is nowhere near as sensitive to power supply rippple.

I thought the lack of sensitivity to PSP ripple in modern amps is because of the use of a negative feedback design.  IE, the output is fed back to a negative input to be compared with the positive audio input, completely ignoring whatever the power-supply is doing.

Yep, NFB reduces sensitivity to ripple also.