thank you 🙂
the attenuator was built by myself.it is 24step shunt type.
i buy the switch from a local shop.
zang
the attenuator was built by myself.it is 24step shunt type.
i buy the switch from a local shop.
zang
Hi Zang
do you have a circuit for us?
Do you think to get a hearable advantage in comparison to an OPA2134 or LM4562? Or AD815?
do you have a circuit for us?
Do you think to get a hearable advantage in comparison to an OPA2134 or LM4562? Or AD815?
hi Thomas,
here is the sch file,
http://www.diyaudio.com/forums/attachment.php?s=&postid=1263082&stamp=1185325175.
the below is my BOM,
R1,R2------------------102,
R3,R4------------------104,
R5,R6,R7,R8----------103,
all resistor are 0805 packaged smt.
C1,C2------------------0.33uf/63V philips mkt
C3,C4------------------200p,smt
UA1,UA2,UB1,UB2---LM6171
U1----------------------LM78L15
U2----------------------LM79L15
CA1,CA2,CA3,CA4---10uf/63V elna
L1-----------------------10uH
i like nsc's chip much better,because its cost and performance.i would use lm4562 as backup.
sorry for the slow reply,i am out of town 🙂
greetings from beijing,
zang
here is the sch file,
http://www.diyaudio.com/forums/attachment.php?s=&postid=1263082&stamp=1185325175.
the below is my BOM,
R1,R2------------------102,
R3,R4------------------104,
R5,R6,R7,R8----------103,
all resistor are 0805 packaged smt.
C1,C2------------------0.33uf/63V philips mkt
C3,C4------------------200p,smt
UA1,UA2,UB1,UB2---LM6171
U1----------------------LM78L15
U2----------------------LM79L15
CA1,CA2,CA3,CA4---10uf/63V elna
L1-----------------------10uH
i like nsc's chip much better,because its cost and performance.i would use lm4562 as backup.
sorry for the slow reply,i am out of town 🙂
greetings from beijing,
zang
Zang:
Like always nice piece of "art".
really like those smd parts on a nice board.
Hope it sounds as good as its nice Layout.
Like always nice piece of "art".
really like those smd parts on a nice board.
Hope it sounds as good as its nice Layout.
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