[Amps] AL-811 Tube Swap

[Alek Petkovic]

The 572Bs will handle anything you throw at them in a AL-811 amplifier.

The power transformer won't.

73, Alek, VK6APK. Not claiming to be an experienced contributor.

On 29/04/2021 11:21 pm, Jay Sturtevant wrote:
> Could the graphite plate of a 572B transform from a solid to a gas by
> sublimation?
>
> I would want to know a rough probability of damaging the finals (gassy) by
> driving them with an input using audio compression or data in a contest or
> bench test. Doesn't compression bring thd average output closer to peak
> output? What's the area under the curve look like?
>
> Perhaps some of the experienced contributors could give soe guidance.
>
> Thanks for your help!
>
> Jay, K2ZT
>
> On Wed, Apr 28, 2021, 1:16 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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