DAC-END The best DAC AD1865- UPDAT 2011 - Page 19

quanghao · 18th January 2013, 09:42 PM

Quote:

Originally Posted by ua3grn

Hi all! Who bought the components here, the original?
CS8414 CS8414CS CS8414 CS 96K Digital Audio Receiver Soldered on DIP Adapter | eBay
1pcs AD1865 AD1865N AD1865N K Dual 18bit 16XFS DAC DIP 24 Adi Brand New | eBay

it is so so, not good!
thanks

quanghao · 19th January 2013, 06:11 AM

I've learned a lot from this DAC!
Thank you very much, people were cheering for me complete this DAC 32!

danielkol · 17th February 2013, 12:20 PM

Hi, Quanghao!
Did you try 6H30 valve in this board?
Yesterday I tried to change 5687 to 6H30, so, I revired all jumpers and filaments to get 6.3v, P - 90v.
This resulted in noise and tube ringing during turn on.
Could you suggest what to do?

quanghao · 2nd March 2013, 05:10 AM

Quote:

Originally Posted by danielkol

Hi, Quanghao!
Did you try 6H30 valve in this board?
Yesterday I tried to change 5687 to 6H30, so, I revired all jumpers and filaments to get 6.3v, P - 90v.
This resulted in noise and tube ringing during turn on.
Could you suggest what to do?

please check all Jum and the transformer for it,

filaments 6h30 need min 2A for 6.3V

60h30 will sound more balanced, and more preferably 5687.
thanks

danielkol · 2nd March 2013, 05:19 AM

And what should be the values for R1 and R11?
I have 240v 90 mA AC input and P voltage is only 83v.

quanghao · 6th March 2013, 08:23 PM

Quote:

Originally Posted by danielkol

And what should be the values for R1 and R11?
I have 240v 90 mA AC input and P voltage is only 83v.

100R for R 11
and 27 to 33R for R 1

thanks

danielkol · 11th March 2013, 07:36 AM

Hi Hao!
I still have a couple of questions concerning LL1660 board:
1. I should use LL1660 10 ma version?
2. For 6h tube - which one (6H30 or 6H6)?
3. R1 and R11 values for power supply?
Thanks!

danielkol · 13th March 2013, 08:18 AM

Hi, Hao!
It seems that you have reworked the SSHV supply on the latest LL1660 board, as it has 2 MJE350 instead of 1 before.
Maybe you can give a circuit scheme?
Thanks!

quanghao · 14th March 2013, 10:09 PM

[QUOTE=danielkol;3405359]Hi Hao!
I still have a couple of questions concerning LL1660 board:
1. I should use LL1660 10 ma version?

I make parallel ( 10mA * 2)

2. For 6h tube - which one (6H30 or 6H6)?
for 5687 or E182cc, or can use 6h30 better than 6h6

3. R1 and R11 values for power supply?
R1 = 33R

R 11 = 100K to 330 /2W

Thanks!

la1209 · 20th March 2013, 02:37 PM

Hi Quanghao,

Please check PM, thanks!

Kenneth

14th March 2013, 10:09 PM	#189
quanghao diyAudio Member Join Date: Sep 2009 Location: Vietnam Blog Entries: 2	[QUOTE=danielkol;3405359]Hi Hao! I still have a couple of questions concerning LL1660 board: 1. I should use LL1660 10 ma version? I make parallel ( 10mA * 2) 2. For 6h tube - which one (6H30 or 6H6)? for 5687 or E182cc, or can use 6h30 better than 6h6 3. R1 and R11 values for power supply? R1 = 33R R 11 = 100K to 330 /2W Thanks! __________________ Group buy DAC-END R (ES9018) full assembled board update 21/5/2013 : https://docs.google.com/spreadsheet/...FE&hl=en#gid=0

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17th February 2013, 12:20 PM	#183
danielkol diyAudio Member Join Date: Apr 2011	Hi, Quanghao! Did you try 6H30 valve in this board? Yesterday I tried to change 5687 to 6H30, so, I revired all jumpers and filaments to get 6.3v, P - 90v. This resulted in noise and tube ringing during turn on. Could you suggest what to do?

2nd March 2013, 05:19 AM	#185
danielkol diyAudio Member Join Date: Apr 2011	And what should be the values for R1 and R11? I have 240v 90 mA AC input and P voltage is only 83v.

11th March 2013, 07:36 AM	#187
danielkol diyAudio Member Join Date: Apr 2011	Hi Hao! I still have a couple of questions concerning LL1660 board: 1. I should use LL1660 10 ma version? 2. For 6h tube - which one (6H30 or 6H6)? 3. R1 and R11 values for power supply? Thanks!

13th March 2013, 08:18 AM	#188
danielkol diyAudio Member Join Date: Apr 2011	Hi, Hao! It seems that you have reworked the SSHV supply on the latest LL1660 board, as it has 2 MJE350 instead of 1 before. Maybe you can give a circuit scheme? Thanks!

20th March 2013, 02:37 PM	#190
la1209 diyAudio Member Join Date: May 2006	Hi Quanghao, Please check PM, thanks! Kenneth