Lee Joon Hon Alvin (Abcinventor)
Post Number: 10
|Posted on Sunday, December 11, 2005 - 5:47 am: || |
What's the 1200 ohm resistor used for in the amplifier project?
May be you had some typo error?
Anyway i was having trouble!
The amplifier worked fine when it was on breadboard prototype
but after i transfer it to the circuit board(the one with parallel
copper tracks and a board behind) it gave me some sound that
are only the loudest part of the songs and it wasn't clear.
Even when i turn up the input volume, it only gave popping
sounds at the peaks(eg.,drum beats)
well maybe i burned the chip or other components but my soldering iron is
I am using flux though. those flux may conduct electricity and short
Anyway there are some black stuff that are in between the copper tracks
that might conduct electricity.They can be scraped out to give better sound
but i have them all scraped out now!!!
What should i do now? whats the problem?Whats next?
Hope you can give me some advice or tips!