Hi everyone!
I recently built 2 AMZ GE PNP buffers with a couple of subs.
http://www.muzique.com/tech/ge_buff.htm
I used 100k instead of 10k for r4, and i used a 2n3906 instead of a GE for the transistor.
(i used the 100k instead of 10k for R4 because i found the buffer didnt work porperly without it. The sound was MUCH WORSE (muffled) on then off!) PRR Suggested this modification in another thread and it did fix this problem.
I built two of these. For some reason, when i turn the volume up and down on my guitar, i get 'crackle' sounding very much like the SHO. Is that the normal behaviour of a buffer? 2nd thing is that as i said i built two, one of them crackles MUCH LOUDER then the other. I tried changing their position, tested solo, etc, one is ALWAYS louder then the other. The only difference between the two is that i used a 1.5k CLR with a diffused red LED for one and a 1.5k CLR (same) and WATERCLEAR red LED for the other. Could the waterclear LED be causing extra crackle!?? Or the HFE of transistor prehaps..?
Any help is greatly appreciated!
Paul