Tube DIY Asylum: Get to the root of the problem - too much gain. by cheap-Jack Do It Yourself (DIY) paradise for tube and SET project builders.

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Posted by cheap-Jack (M ) on January 12, 2006 at 09:18:17

In Reply to: Re: Stepped attenuator with low profile for Fi Y pre? posted by restock on January 11, 2006 at 18:45:00:

Hi.

A cheapie & easy way is to add a 5.1K + 5.1K voltage divider before your existing pot of each channel with the full volume pin of the pot hooked up to the voltage divider cente point. This will give you -6dB fixed attenuation.

Change the voltage divider resistors to 7.5K+3.3KR, you will get -10dB attentuation.

These attenuation to stretch up the low volume control range. Chancs are you don't need to change any pots.

c-J

PS: the best way is review the overgain of your preamp. May be you want to dispose yr active pre & replace with a passive one.

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