Re: How would one use NPN transistors only?

From: John Larkin (jjlarkin_at_highSNIPlandTHIStechPLEASEnology.com)
Date: 06/11/04 

Date: Fri, 11 Jun 2004 10:59:35 -0700

On Fri, 11 Jun 2004 06:58:05 GMT, Rick<rik_nntp@dsl.pipex.com> wrote:

>Jim Thompson <thegreatone@example.com> wrote:
>>
>> See "MC1554-AudioPowerAmp.pdf" on the S.E.D/Schematics Page of my
>> website.
>
>
>Don't see how this can work - the output stage's darlington has its
>base and emitter clamped to almost the same voltage by the two
>diodes connected to pin 8; it won't conduct.
>

I sure Jim will be dismayed to discover that hundreds of thousands of
these chips were manufactured, and none of them ever worked!

John

ps - two questions:

1) was this the first ocurrence of...

      +----+---v+
      | |
      r |
      | c
      +---b
      | e
      | |
      +-ka-+-----out
      |
      |
      c
 in--b
      e
      |
     gnd

2) Did Jim Thompson invent crossover distortion?