Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!pikes!mercury.cair.du.edu!isis!cbrandau
From: cbrandau@isis.cs.du.edu (carl brandauer)
Newsgroups: sci.electronics
Subject: Re: TUBE DESIGN
Message-ID: <1990Oct24.162042.26571@isis.cs.du.edu>
Date: 24 Oct 90 16:20:42 GMT
References: <13b593cad136270a1244@canremote.uucp> <57@sierra.STANFORD.EDU> <271c8c45-4b1.2sci.electronics-1@vpnet.chi.il.us> <1990Oct20.220252.1269@zoo.toronto.edu> <1990Oct21.171736.9918@wsrcc.uucp>
Reply-To: cbrandau@isis.UUCP (carl brandauer)
Organization: Math/CS, University of Denver
Lines: 12

In article <1990Oct21.171736.9918@wsrcc.uucp> wolfgang@wsrcc.uucp (Wolfgang S. Rupprecht) writes:

	[much stuff deleted]

>Tube amps all have very limited gain in all the stages, and little or
>no global feedback.  This is all becaues tubes have very limited gains
>at best.  Notice how they force you to do a good job.
>

Hogwash - there is not a single instance of a tube power amplifier without
global feedback in such classic references as the 'Radiotron Designer's
Handbook' by Langford-Smith and others.