[Amps] AL-811 Tube Swap

[Kim Elmore]

What I’ve read on this says not to expect much more out because the B+ is a bit low for 572Bs. But otherwise, it’s a simple swap. The 572Bs are more rugged. 

Kim N5OP

"People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith

> On Apr 28, 2021, at 12:16 PM, Richard Solomon <dickw1ksz at gmail.com> wrote:
> 
> I have an old AL-811 on the Test Bench
> I use when I need a little more starch for
> test purposes.
> 
> I thought about replacing the 811's with
> 572B's.
> 
> Any pitfalls on that idea ?
> 
> Tnx, Dick, W1KSZ
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