Single voltage powered Tone Control - diyAudio
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Old 9th August 2012, 07:47 PM   #1
diyAudio Member
Join Date: Aug 2012
Default Single voltage powered Tone Control

Hi, I'm new here.

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

Click the image to open in full size.

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

Thank you for your help.
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Old 9th August 2012, 08:03 PM   #2
DF96 is offline DF96  England
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.
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