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Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor?

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On 11/12/2020 11:29 pm, Peter Wieck wrote:
> The Dynaco PAT-5 biFet makes 15V @ 50MA +/- 5%

**Umm, not quite. The specs for the LF357 indicates significantly lower 
numbers than that. At 25 degrees C:

* Maximum output Voltage (god, I forgot just how primitive that old 
things was - zener regulation!?), with a +/- 15 Volt supply - 25 Volts 
p-p = 8.8 Volts RMS (theoretically).
* Maximum output current @ 25 V p-p (dunno what the value of the output 
series resistor is, as that will change the final figure somewhat) - +ve 
20ma and (wait for it) -ve 5ma.

> There is an Aktika (sp?) pre-amp that makes 20V @ 50MA +/- 5%
> And there is a mod for the PAT-5 to get it to 42V @ 20MA +/- 5%
> 
> The reasoning for those superficially absurd voltages is headroom. And that is a long, difficult, and very nearly futile discussion mostly based on revealed religion.

**Well, once the input Voltage limits of the power amp are exceeded, 
it's all over red rover.

> 
> And, that is AC voltage. Not DC - so those electrons are flying back and forth at whatever the audio frequency might be.  Not departing for parts-unknown and in only one direction.

**Of course.


-- 
Trevor Wilson
www.rageaudio.com.au

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Thread

Audio Interconnect cable Performance - is Return Wire Diameter a Factor? "oben...@gmail.com" <obenings@gmail.com> - 2020-12-03 03:03 -0800
  Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Peter Wieck <peterwieck33@gmail.com> - 2020-12-03 06:30 -0800
    Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Dick Pierce <dpierce.cartchunk.org@gmail.com> - 2020-12-08 06:42 -0800
    Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Dick Pierce <dpierce.cartchunk.org@gmail.com> - 2020-12-10 14:33 -0800
      Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Peter Wieck <peterwieck33@gmail.com> - 2020-12-11 04:29 -0800
        Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Trevor Wilson <trevor@rageaudio.com.au> - 2020-12-12 10:06 +1100
        Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Dick Pierce <dpierce.cartchunk.org@gmail.com> - 2020-12-11 18:26 -0800
  Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Trevor Wilson <trevor@rageaudio.com.au> - 2020-12-05 08:48 +1100
    Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Peter Wieck <peterwieck33@gmail.com> - 2020-12-06 04:59 -0800
      Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? -dsr- <dsr-usenet@randomstring.org> - 2020-12-06 10:23 -0500
      Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Trevor Wilson <trevor@rageaudio.com.au> - 2020-12-07 10:48 +1100
        Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Peter Wieck <peterwieck33@gmail.com> - 2020-12-07 04:37 -0800
          Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? -dsr- <dsr-usenet@randomstring.org> - 2020-12-07 08:07 -0500
            Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Peter Wieck <peterwieck33@gmail.com> - 2020-12-07 07:35 -0800
              Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? -dsr- <dsr-usenet@randomstring.org> - 2020-12-07 12:13 -0500
        Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Peter Wieck <peterwieck33@gmail.com> - 2020-12-07 04:34 -0800
          Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? -dsr- <dsr-usenet@randomstring.org> - 2020-12-07 07:55 -0500
            Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Trevor Wilson <trevor@rageaudio.com.au> - 2020-12-08 07:37 +1100
          Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Dick Pierce <dpierce.cartchunk.org@gmail.com> - 2020-12-08 06:45 -0800
      Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Dick Pierce <dpierce.cartchunk.org@gmail.com> - 2020-12-08 06:42 -0800
        Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? "harris...@gmail.com" <harrisonspace@gmail.com> - 2020-12-09 05:45 -0800
          Re: Audio Interconnect cable Performance - is Return Wire Diameter a Factor? Dick Pierce <dpierce.cartchunk.org@gmail.com> - 2020-12-10 14:05 -0800

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