2008多項課程召集 - (1) 春季 DAC 原理和製作班 （完滿結束）

Please reserve a place for me, I have reserve it last time.

Hi Admin,

I want to join the course, what shoudl I do.

Hi Admin,

I have paid through Paypal, please let me know the detail. Thanks.

Hi KK,

Yes, I know KK Lin, and I have seen you before at the ariport. Looking forward to see you and the course. cheers.

Hi KK,

Do my package could add on tube out? Or have I have purchased the wrong one? I get the $1380 one.
Thanks.

Admin,

I don't want to trouble but I have paid for the performance kid, how could I pay for the different for the tube output? Thanks.

Hi KK Sir,

I could not come on the coming Friday, I could only arrive after 6:00pm. How long will you stay? Since I need to complete all the component first may I have all the values for the tube buffer circuit diagram?

By the way, the testing at home is very good, thanks a lot for your help.

Thanks.

KK Sir,

Sorry to bother you again, I need to assemble the tube buffer at home and bring back to assemble at Friday after 6:00pm. May I have the figures for the components?  I have attached my portion for your reference.

D203        IN4001
D204        IN4001
D205        IN4001
D206        IN4001
C218        103uf
C219        103uf
C220        104uf
C221        104uf
C214        6800uf
IC201        LM317T
R219        220r
R220        910r
C215        1uf
C216        4700uf
C217        10uf

D201        MR760
D202        MR760
R216        150K
R217        6K8
R218        3K6
C211        47uf
C212        100uf
C213        47uf

C201        104uf
R201        1M
R203        1M
R213        6K8
R205        10K
R206        10K
R211        680R
R209        100R
C203        220pf
R1        ?
R2        ?
C205        1000pf
C207        4.7uf/100V
C7        680p
R221        1M

U1        ?
R20        ?
R21        ?
C11        ?
D11        ?
DELAY        ?




Thanks very much for your help!!

BCheong

AP,

Thanks very much for your information. You have finished your board?

BCheong

KK Sir,

Thanks very much for all your help in the past few weeks. I could see how hard you tried to help fools like me to construct a DAC. I really really appreciate your work. The DAC is great and I turned on my amp everyday since then. Further, I am looking forward to joining the CD workshop in the near future.

By the way, what time will the session start this saturday? I need to complete my tube buffer. On the other hand, I have damaged the sample DAC board last time, I think I need to pay for it this time.

Cheers.

BCheong

KK sir,

Let me know if there is a chance to complete my DAC from 12 to 16 April. I could come on office hour. Thanks.

Hi KK,

No too much, I got some cables to reconnect. Some holes to drill (as I done it incorrectly last time), and test the tube buffer. Could I come at office hour during the CDM9 course, therefore, I could finish it first before the CDM9.

Thanks.

B Cheong