Hi @ all.
I'm new here :)
Have a Problem with A LPB 1 Booster.
The Bypass work.
But when I switch the Button to on, the loudness goes down
and not up. :?
Check the Pictures and Sound Samples I've posted on a german
Forum:
http://forum.musikding.de/yabbse/index.php?board=8;action=display;threadid=940
Thanx for your help.
I'm not good with German but I saw the first picture of your board. I see a socket for the transistor but where is the transistor? With out the transistor you won't get much of anything.
Seeing Severin's pic, and reading the quote, reminds me why I miss Germany!!!
As far as the booster, there's probly just a small wiring error or something like that.
Take some pin voltages off the Transistor legs from ground...audio probe...you're // close I think.
Hi, for an in depth look at the lpb-1, take a look at the analysis on effectronics from J. Philpott.
the file is in the "design" section : http://www.j.philpott.com/effectronics/
double check your wiring then take voltage readings on each leg of the transistor. we'll help you from there.