Hi Quang Hao,
you wrote that you´d use 6c45 as Valve.
But this is a mono-triode-Valve and the e182cc
has got double triodes.....what did you change in
circuit?
Also Andrea wrote that D3A could be used...well
this is a pentode.....how to implement this one?
Greetings Ulf
you wrote that you´d use 6c45 as Valve.
But this is a mono-triode-Valve and the e182cc
has got double triodes.....what did you change in
circuit?
Also Andrea wrote that D3A could be used...well
this is a pentode.....how to implement this one?
Greetings Ulf
To go on.
May i haved looked at A. Ciuffoli schematic before !!!
I don't understand few things :
- Why CS8414 pin 24 (M1) is connected to CS8414/AGND and not DGND
- Why using specific regulator (TL431) for CS8414 pin 18 which is M2
as M0 to M4 is to select CS8414 mode.
- Usually LC schematic is used for digital PS for proper decoupling, here there is no L used, is there any specific reason ?
Is there any specific tweak behind schematic used ?
No! i dont change Cricuit of Andrea, I can by E182cc, D3a! I have 2 6c45, I used them!
You can see!
Attachments
Last year I bought 2 from ferdsaudio on ebay and both were faulty. I asked the replacement and again were faulty. Incredible.
I then bought one here:
CS8414 CS8414CS to DIP28 (PCB adapter- SOIC28) - eBay Other, Electronic Components, Electrical Test Equipment, Business Industrial. (end time 12-Feb-10 04:54:58 AEDST)
and it works!!
Remember to always ground your soldering iron when soldering these kind of chips.
There is 3 small area behind the CS8414, the AD1865 and the 74Hcxx but not "wide enough" to form a large groundplane.
May be one complete layer could have been used to form the ground plane but may be difficult to route. But I haven't tried so i don't know if possible
How critical are the Sanyo Os-Con caps? Can't we just use something decent like Panasonic FC's?
in the Board DAC-end you do not use other Cap, only Sanyo Os-con! you can ask Andrea!
In the Salas shunt you can use other Cap! with one If you like!
Is there a finalized parts list up yet (BOM)?
Or should we take the parts as shown here: DAC End 2 - the AD1865N-K with single ended vacuum output stage
Thanks
Or should we take the parts as shown here: DAC End 2 - the AD1865N-K with single ended vacuum output stage
Thanks
You could, but I would say NO because Oscon is unique (special) cap and is the best for digital signal decoupling. On the analog though you could use something else like Elna Silmic for example.
Oscon SP is best for this purpose then SH.
Oscon SP around 220uF is easy to get from eBay while I cannot find the 47uF SP 16V
Anyone can help to find Oscon 47uF 16V SP series please? I can only find SA
Quanghao,
where did you find 47uF 16V Oscon? Are they SP series?
Farnell got them in stock at $8.00 each !!! Too expensive
where did you find 47uF 16V Oscon? Are they SP series?
Farnell got them in stock at $8.00 each !!! Too expensive
The secondary for the filaments should be 8v 3A instead of 9v 1A.
and the 2 x 2.2ohm 3w resistor should be 2.2ohm 5w
and the 2 x 2.2ohm 3w resistor should be 2.2ohm 5w
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