transistors / tubes / IO phase angle

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darkspeed

transistors / tubes / IO phase angle « on: 2010-06-18, 20:27:09 »

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Posts: 812

Iv been giving the whole transistors thing a lot of thought and here is what i have so far..

Switching speed between transistors and tubes - with a properly designed system this is not a huge deal

Noise between transistors and tubes - this can go either way depending on what you are ding but in general tubes are better at sine waves.

Amplifiers ( as a complete system ) between transistors and tubes - Huge difference if you are considering the input to output phase angle and noise

The time it takes a signal to pass through a transistor amplifier ( 1995 pre amp / amp ) is magnatudes longer than it takes for a tube ( pre amp / amp )

So... if your system was a feedback system and relied on exact phase angle between input and output.. to say hit a natural RF then tubes win hands down.

Grumpy	Re: transistors / tubes / IO phase angle « Reply #1 on: 2010-06-18, 20:52:11 »
Group: Tinkerer Hero Member Posts: 4265 tExB=qr	you would not want things to drift toward "max conversion" for any reason

darkspeed	Re: transistors / tubes / IO phase angle « Reply #2 on: 2010-06-18, 21:08:22 »
Hero Member Posts: 812	Quote from: Grumpy on 2010-06-18, 20:52:11 you would not want things to drift toward "max conversion" for any reason Yes!! you do - you want exact conversion - then you can introduce the desired delay " you want " to control the reaction

darkspeed	Re: transistors / tubes / IO phase angle « Reply #3 on: 2010-06-18, 21:25:54 »
Hero Member Posts: 812	O' sorry G - i see what you mean now....

Grumpy	Re: transistors / tubes / IO phase angle « Reply #4 on: 2010-06-19, 02:35:15 »
Group: Tinkerer Hero Member Posts: 4265 tExB=qr	all depends on the setup some VCO's and crystal multivibrators are very stable