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DIY Stompboxes => Building your own stompbox => Topic started by: Hypnotize on January 17, 2015, 11:11:47 AM

Title: Quiet buffer
Post by: Hypnotize on January 17, 2015, 11:11:47 AM
Hi there :)

Today i build "klon buffer" using Tl072 , but it's quiet :(
What should i do to make it louder ?

P.S.

I used :
http://tagboardeffects.blogspot.com/2011/04/klon-buffer.html

P.S.S.

After removing 560r resistor , sound is a bit louder , but it's still quiet and most of bass is cut :(
Title: Re: Quiet buffer
Post by: nocentelli on January 17, 2015, 03:38:08 PM
Is the input cap definitely 100n?
Title: Re: Quiet buffer
Post by: Hypnotize on January 18, 2015, 06:22:19 AM
yap , should i lower the value of that cap ?
Title: Re: Quiet buffer
Post by: nocentelli on January 18, 2015, 07:01:33 AM
No, I was just guessing if you're lacking bass and level you might have a 1n or 100p cap instead of 100n. Lower values than 100n might affect the frequency, 100n is plenty for full guitar range. That buffer should be unity, it might seem slightly brighter due to the fact you're used to unbuffered long cable runs dulling the treble slightly. A large level drop suggests a wrong value used somewhere, or a fault in the construction.
Title: Re: Quiet buffer
Post by: knutolai on January 18, 2015, 08:39:38 AM
Quote
Today i build "klon buffer" using Tl072 , but it's quiet

The first layout asks for a tl071 opamps (single opamp package). If you are building that, using a tl072 (dual opamp package) wont work.