PCB
Is that Amp board aquired from South Korea looks like a site that I was lookink at from there but could not read description given site is mostly written in Korean I did do conversion exchange's on the variou s circuit boards that the site offered a the price's appear to be very good
Is that Amp board aquired from South Korea looks like a site that I was lookink at from there but could not read description given site is mostly written in Korean I did do conversion exchange's on the variou s circuit boards that the site offered a the price's appear to be very good
Banned
Joined 2002
The PPA,Meta42,or mint Boards can be aquired from Tangent for a very good price and the boards are professionally made.www.tangentsoft.com
yep, on my sitte http://www.electronet.5u.com/schematics/amplifiers/lm4881.htm
if you want the surface mount pcb (much much much better designed, for the lm4881M chip, i can email it to you. the surface mount board is only about 1 1/4 inch by 1 inch, and even includes a bicolor LED for charge/power.
dont use the shutdown mode, it doesnt work well, just slice the trace between the output of the regulator and pin 8 of the chip and connect a switch there.
or you can design your own pcb
then, finally, put a 10uf can on the input and a 1000 uf on the output unless you want no bass.
if you want the surface mount pcb (much much much better designed, for the lm4881M chip, i can email it to you. the surface mount board is only about 1 1/4 inch by 1 inch, and even includes a bicolor LED for charge/power.
dont use the shutdown mode, it doesnt work well, just slice the trace between the output of the regulator and pin 8 of the chip and connect a switch there.
or you can design your own pcb
then, finally, put a 10uf can on the input and a 1000 uf on the output unless you want no bass.
JasonL said:do you have a schematic.? Does any one have a good schematic for a decent headphone amp. a friend of mine asked me last night to build him a good sounding one..
Have you tried Headwize.com it has all this headphone amp projects. The link at the right seem to be the most popular design.
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