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John Byrns John Byrns is offline
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Default Which tube expert can do custom works?

In article ,
Eeyore wrote:

Ian Iveson wrote:

Eeyore continued:

It seems that Tynan AgviŠr isn't fooled by your
posturing.


Why should I care, why should I posture, and quite what
posture do you believe I have adopted?

Submit a sample schematic of a valve circuit of your design.
Let's see what you can really do.


A typical triode stage requires a grid, anode load and cathode resistor
(possibly 'bypassed'). What is there to 'design' ? Choosing a resistor
value ?


That's a lot more complex than designing with op=amps today where there
is nothing to choose, where you don't even need to pick values for the
"anode load and cathode resistor (possibly 'bypassed')."

The thing is that tube circuitry is astonishly formulaic. Designing with
transistors is anything but.


OK, that may be true of designing with transistors, but designing with
op-amps is considerably more formulaic even than designing with tubes.

Graham, you claim to have been a "pro audio designer", why don't give
all of us who haven't worked as "pro audio designers" a tutorial on
designing mixing networks? By mixing networks I mean the part of a
"mixer" that does the actual mixing of the multiple inputs. The design
of the various amplifiers that are required in a project like this is
not beyond the capability of many in this group, but the actual "mixing"
network and its requirements is a different matter. As a "pro audio
designer" please enlighten us about this aspect of "mixer" design.


Regards,

John Byrns

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