Single voltage powered Tone Control

elctronn · 9th August 2012, 07:47 PM

Hi, I'm new here.

Please, advise to me, what is the meaning of these parts:

Can be used VR1 10k ?
And what is your opinion about this preamp?

Thank you for your help.

DF96 · 9th August 2012, 08:03 PM

My guess is that the components you have circled provide a simple 'loudness compensation' so the tone is altered according to the volume setting. Very common at one time on mid-fi stuff but generally avoided in equipment aiming at good sound quality.

My general opinion is that this looks like early 1970s mid-fi.

9th August 2012, 07:47 PM	#1
elctronn diyAudio Member Join Date: Aug 2012	Single voltage powered Tone Control Hi, I'm new here. Please, advise to me, what is the meaning of these parts: Can be used VR1 10k ? And what is your opinion about this preamp? Thank you for your help.

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9th August 2012, 08:03 PM	#2
DF96 diyAudio Member Join Date: May 2007	My guess is that the components you have circled provide a simple 'loudness compensation' so the tone is altered according to the volume setting. Very common at one time on mid-fi stuff but generally avoided in equipment aiming at good sound quality. My general opinion is that this looks like early 1970s mid-fi.