Sorry, I don't know. All I know is that Digikey is the only source for genuine AD1865N-K I'm confided in. Don't buy anything that you're not sure whether it's real or fake. It hurts.
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Housing if you make it GB im in with 2 pcs AD 1865N-K
they will place at my wadia 12
thank you
I measured all pins regarding connectivity and all check out fine. Also the supply voltages are fine (4.98-5.02V).
I will get my scope tomorrow to see if I can measure the digital signals.
Thanks
Go Housing go! I'm sure the guys in the second batch of DAC boards will need this DAC chip and that also includes me and Ponyo. Keep us posted.
Thanks,
Fred
Register Now
Im in for 2 pcs AD1865 N-K
will be 3 if i build andrea DAC 😀
AD 1865N-K Group Buy by HOUSING
1. Pocoyo 2 pcs
2. FredLock 1 pcs
3. Housing 1 pcs
4.
5.
6.
7.
8.
9.
10.
Total GB : 4 pcs minimum order must 15
Will buy from DIGIKEY not from CHINA
Im in for 2 pcs AD1865 N-K
will be 3 if i build andrea DAC 😀
AD 1865N-K Group Buy by HOUSING
1. Pocoyo 2 pcs
2. FredLock 1 pcs
3. Housing 1 pcs
4.
5.
6.
7.
8.
9.
10.
Total GB : 4 pcs minimum order must 15
Will buy from DIGIKEY not from CHINA
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GB Update
AD 1865N-K Group Buy by HOUSING
1. Pocoyo 2 pcs
2. FredLock 1 pcs
3. Housing 1 pcs
4. jasujonas 1 pcs
5. jims 2 pcs
6.
7.
8.
9.
10.
Total GB : 7 pcs in view order (minimum order must 15)
Will buy from DIGIKEY not from CHINA
AD 1865N-K Group Buy by HOUSING
1. Pocoyo 2 pcs
2. FredLock 1 pcs
3. Housing 1 pcs
4. jasujonas 1 pcs
5. jims 2 pcs
6.
7.
8.
9.
10.
Total GB : 7 pcs in view order (minimum order must 15)
Will buy from DIGIKEY not from CHINA
Im very sorry
For a new Group Buy of AD 1865 N-K moved here
http://www.diyaudio.com/forums/group-buys/163183-ad-1865-n-k.html#post2118986
thank you
* Dont forget to support your AD 1865 N-K with another 🙂 *
For a new Group Buy of AD 1865 N-K moved here
http://www.diyaudio.com/forums/group-buys/163183-ad-1865-n-k.html#post2118986
thank you
* Dont forget to support your AD 1865 N-K with another 🙂 *
Thank you very much for clarifying this. So what is the right way of testing the HV? If anyone can make a similar drawing I will be very thankful.
1. Pocoyo 2 pcs
2. FredLock 1 pcs
3. Housing 1 pcs
4. jasujonas 1 pcs
5. jims 2 pcs
6. mikelm 1 pcs
7.
8.
9.
10.
2. FredLock 1 pcs
3. Housing 1 pcs
4. jasujonas 1 pcs
5. jims 2 pcs
6. mikelm 1 pcs
7.
8.
9.
10.
O.K. guys. Move your intention to buy AD1865N-K from Digikey here :
http://www.diyaudio.com/forums/group-buys/163183-ad-1865-n-k.html
Further entry in this thread will be neglected. Sorry!
Thanks to Jeff for setting up the thread for the new international group buy.
http://www.diyaudio.com/forums/group-buys/163183-ad-1865-n-k.html
Further entry in this thread will be neglected. Sorry!
Thanks to Jeff for setting up the thread for the new international group buy.
After comparing three DACs with some people, they all choose my old DAC with AD1865 with different tube setup.
I think in this project the I/V tube stage can be improved.
The bottom line is: this DAC costed three times the old one, it's far more complicated and it does not reach the performance of my old one.
Good lesson.
I think in this project the I/V tube stage can be improved.
The bottom line is: this DAC costed three times the old one, it's far more complicated and it does not reach the performance of my old one.
Good lesson.
Attachments
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So where to now??
Are you gonna try and upgrade this dac or I/V tube stage to improve its performance?
do the led bias mod, it makes a very good impact.
cathode bypass caps to my ears sound a little confused and muddy.
Replace the anode resistors with a CSS or gyrator (the later i have not tried). 7.5ma is a little too low on the 5687's, 12ma + is a good idea to be linear.
cathode bypass caps to my ears sound a little confused and muddy.
Replace the anode resistors with a CSS or gyrator (the later i have not tried). 7.5ma is a little too low on the 5687's, 12ma + is a good idea to be linear.
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