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From: john larkin <JL@gct.com>
Newsgroups: sci.electronics.design
Subject: Re: big L
Date: Sat, 21 Dec 2024 11:35:54 -0800
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On Sat, 21 Dec 2024 16:53:07 +0000, Cursitor Doom <cd@notformail.com>
wrote:

>On Sat, 21 Dec 2024 11:16:18 -0500, legg <legg@nospam.magma.ca> wrote:
>
>>On Tue, 17 Dec 2024 06:58:32 -0800, john larkin <JL@gct.com> wrote:
>>
>>>What's the biggest inductor, the most Henries, that you know of? I
>>>seem to recall some audio transformer that was something like 100 H.
>>
>>The SAFT/Alcatel plant in Scarborough used to have 
>>largish inductors for loading. Air-cored - ~10ft 
>>on a side.
>>
>>Your watch would stop, if you were too close.
>>
>>Large L ? Who needs it?
>
>In the olde days we used to have audio output transformers  for
>impedance matching purposes, but modern amps don't seem to need 'em.

And long ago tubes were expensive so it made sense to get voltage gain
from interstage transformers.