Steve Bench 1 tube reg in all glass

[leadbelly]

I'm looking at building an all-tube version of Steve Bench's regulator shown below:


For the single diode that serves as the peak detector, would a better tube substitute be power rectifier or a high-perveance detector type? TIA

The full page is here: Tube Based Voltage Regulators - Part 1

[Wavebourn]

It is rather a tube filter, not a regulator.

[Sch3mat1c]

And a rather bad one at that, the output impedance is ballpark 1/Gm.

Tim

[leadbelly]

Please stay on topic. I didn't ask for a regulator recommendation. It's perfect for what I want, which is a non-audio application.

[Wavebourn]

Please call things by their names, in order to avoid confusion.

The common term for a voltage regulator is understanded as a voltage stabilizer, that keeps an output voltage on some level that is (ideally) independent on a voltage supply.

[Miles Prower]

Originally Posted by leadbelly

For the single diode that serves as the peak detector, would a better tube substitute be power rectifier or a high-perveance detector type? TIA

If you want to hollow state that peak detector, your best bet would be 6AL5s. You could parallel both sections here. A power type might have a higher forward voltage, nor do you need the plate dissipation capability since it's a small signal app anyway.

[leadbelly]

To Wavebourn: Stop threadjacking me. Go and read Steve Bench's page (to remind yourself that you are no Steve Bench) and then move on.

[leadbelly]

Originally Posted by Miles Prower

If you want to hollow state that peak detector, your best bet would be 6AL5s. You could parallel both sections here. A power type might have a higher forward voltage, nor do you need the plate dissipation capability since it's a small signal app anyway.

Thanks!

[Wavebourn]

Originally Posted by leadbelly

To Wavebourn: Stop threadjacking me.

Sorry, I can't. Both you and Steve Bench use a different meaning for the known term, so I took responsibility to warn about that, since it is a forum where people learn.

[janneman]

Originally Posted by leadbelly

[snip] Go and read Steve Bench's page (to remind yourself that you are no Steve Bench) [snip].

That is correct, but it is also correct that the circuit is not a regulator.
A regulator has a reference which is compared to a fraction of the output and then the error is used to 'regulate' (there's that word again ) the output.

It's an interesting circuit though; on the face of it I wonder what it does to the ripple? Does it decrease it in the same ratio of the output divider? Hmmm.

jd