OLD THREAD Simplistic Mosfet HV Shunt (The Simpler Simplistic Design by Salas)

[Ferrari]

More flexibility with off-board heatsink, especially at higher current setting.

 

[Jean-Charles]

Changed the quatities for PCB

1. Jogi = 2PCB
2. qusp= 2-3PCB
3. Bas Horneman = 2 PCB
4. hihopes = 2PCB
5. guglielmope = 2PCB
6. Ryssen = 2PCB
7. kstlfido = 6PCB
8.cygnus x1 = 8PCB
9. regal = 4PCB
10. le`flu = 4 PCB
11. vgeorge = 2 pcb
12.jameshillj = 2 pcb
13.dodo = 1 pcb (one)
14.normundss = 2-3 PCB
15. stoolpigeon 4 PCB
16. Nikon1975 = 2 PCB
17. pchw = 4 pcb
18. boudy = 2 PCB
19. Yunick = 1 PCB
20. JimS = 4PC
21. Cambe = 3 PCB
22. av-trouvaille = 6-8 pcb
23. Jean-Charles = 4 pcb
24. Ferrari = 4 PCB
25. piero7 = 2 pcb
26. Zekk needs ONE
27. Joshua_G = 1 PCB
28. ernesternest 2 PCB
29. wobii = 2 pcb
30. Jaap = 2 pcb
31. noizas = 4 pcb
32. housing = 2 pcb
33. h-wan = 1 pcb
34. ichiban = 2 pcb
35. Adamus = 2 pcb
36. mikel_ann = 2 pcb
37. flyboi = 2 pcb
38. ims = 1 pcb
39. touchdown = 1 PCB

 

[Joshua_G]

More flexibility with off-board heatsink, especially at higher current setting.

To my view, it's better to have both options enabled.

 

[noizas]

Updated my need for PCB



1. Jogi = 2PCB
2. qusp= 2-3PCB
3. Bas Horneman = 2 PCB
4. hihopes = 2PCB
5. guglielmope = 2PCB
6. Ryssen = 2PCB
7. kstlfido = 6PCB
8.cygnus x1 = 8PCB
9. regal = 4PCB
10. le`flu = 4 PCB
11. vgeorge = 2 pcb
12.jameshillj = 2 pcb
13.dodo = 1 pcb (one)
14.normundss = 2-3 PCB
15. stoolpigeon 4 PCB
16. Nikon1975 = 2 PCB
17. pchw = 4 pcb
18. boudy = 2 PCB
19. Yunick = 1 PCB
20. JimS = 4PC
21. Cambe = 3 PCB
22. av-trouvaille = 6-8 pcb
23. Jean-Charles = 4 pcb
24. Ferrari = 4 PCB
25. piero7 = 2 pcb
26. Zekk needs ONE
27. Joshua_G = 1 PCB
28. ernesternest 2 PCB
29. wobii = 2 pcb
30. Jaap = 2 pcb
31. noizas = 3 pcb
32. housing = 2 pcb
33. h-wan = 1 pcb
34. ichiban = 2 pcb
35. Adamus = 2 pcb
36. mikel_ann = 2 pcb
37. flyboi = 2 pcb
38. ims = 1 pcb
39. touchdown = 1 PCB

 

[regal]

To my view, it's better to have both options enabled.

For the shunt reg, off board heatsinks are the only practical solution in all but the most rare low current applications. I think this layout is the best option.

 

[quanghao]

Heater-Power-Supply

 

[quanghao]

Simpler Simplistic design by Salas Group buy PCB

A. Information about Salas low shunt:
http://www.diyaudio.com/forums/powe...stic-mosfet-hv-shunt-regs-97.html#post2084348

Thank you Salas
_______________
B. COST OF One PCB * 4 supply* (2 Simpler Simplistic + 2 Heater Power Supply)
2 x Simpler Simplistic
2 x Heater Power Supply

The price:
Board set (of 4):
Shipping from Vietnam: US$ 6 (surface mail)
Payment fee (PayPal) at 3.5%: US$
TOTAL: US$ 30
my email address: quanghao168@yahoo.com.vn
my papal: quanghao168@yahoo.com.vn
Thank you.


Please Update the list yourselves when you type:
1. Jogi = 2PCB
2. qusp= 2-3PCB
3. Bas Horneman = 2 PCB
4. hihopes = 2PCB
5. guglielmope = 2PCB
6. Ryssen = 2PCB
7. kstlfido = 6PCB
8.cygnus x1 = 8PCB
9. regal = 4PCB
10. le`flu = 4 PCB
11. vgeorge = 2 pcb
12.jameshillj = 2 pcb
13.dodo = 1 pcb (one)
14.normundss = 2-3 PCB
15. stoolpigeon 4 PCB
16. Nikon1975 = 2 PCB
17. pchw = 4 pcb
18. boudy = 2 PCB
19. Yunick = 1 PCB
20. JimS = 4PC
21. Cambe = 3 PCB
22. av-trouvaille = 6-8 pcb
23. Jean-Charles = 4 pcb
24. Ferrari = 4 PCB
25. piero7 = 2 pcb
26. Zekk needs ONE
27. Joshua_G = 1 PCB
28. ernesternest 2 PCB
29. wobii = 2 pcb
30. Jaap = 2 pcb
31. noizas = 3 pcb
32. housing = 2 pcb
33. h-wan = 1 pcb
34. ichiban = 2 pcb
35. Adamus = 2 pcb
36. mikel_ann = 2 pcb
37. flyboi = 2 pcb
38. ims = 1 pcb
39. touchdown = 1 PCB

 

[guglielmope]

Hello,
for 2 pcb there are 12 US$ of shipping costs?
We can start to pay?
When you will be ready to send the pcbs?
Ciao
Guglielmo

 

[quanghao]

Cricuit-'Simpler-Simplistic

Cricuit-'Simpler-Simplistic A, I use for PCB

 

[quanghao]

Cricuit-'Simpler-Simplistic file PDF

 

[gabanyayaya]

Quanghao

For I/V stage using 2 dual triod tubes how many PCB needed....?? 1 Simpler Simplistic + 1 Heater Power Supply PCB or 2 Simpler Simplistic + 2 Heater Power Supply ???

 

[quanghao]

Quanghao

For I/V stage using 2 dual triod tubes how many PCB needed....?? 1 Simpler Simplistic + 1 Heater Power Supply PCB or 2 Simpler Simplistic + 2 Heater Power Supply ???

what the I/V stage do you want to say?? you like parallel 6h6??

2 simpler + 2 heater suppy you can sen last post.

 

[quanghao]

Hello,
for 2 pcb there are 12 US$ of shipping costs?
We can start to pay?
When you will be ready to send the pcbs?
Ciao
Guglielmo

no! i answer you later, i ask post office!

thank

 

[Joshua_G]

Will it be possible to ship by air mail for extra cost?
How much will the shipping be to Israel, both surface and air mail?

 

[gabanyayaya]

what the I/V stage do you want to say?? you like parallel 6h6??

2 simpler + 2 heater suppy you can sen last post.

quanghao

this is the I/V stage I'm talking about....

An externally hosted image should be here but it was not working when we last tested it.

Can I parallel 1 shunt & 1 heater psu board to each tube like in the circuit?

 

[noizas]

gabanyayaya

I'm pretty sure to parallel one shunt regulator for both channels (L and R) is really bad idea, because of too strong crostalk between channels via same PSU source.
Even with white cathode follower which has strong PSRR, it is not good idea.
Your schematic however is symetrical totem pole amp, which has medium PSRR value.

regards

 

[quanghao]

quanghao

this is the I/V stage I'm talking about....

An externally hosted image should be here but it was not working when we last tested it.

Can I parallel 1 shunt & 1 heater psu board to each tube like in the circuit?

In this Tube (6n2 or 12AX), use some mA. you can use one suppy for it.
But i dont like SRPP for DAC, i fin in my house, if i still have PCb SRPP, i will gift you, don't pay money.

 

[noizas]

quanghao

Can I make Paypal transfer for 3 PCB in amount 3x30 USD, or I need to wait some options for postage cost?

Concerning gabanyayaya SRPP schematic - it shows like I/V ala Lampizator with 6N2P - one solution for I/V, amp and even buffer. If here is question of space in box, it is not worst solution, IMHO.
What is wrong with SRPP as I/V - can you share your experience?


gabanyayaya

Indeed you can use one shunt regulator as power suplly, but better substitute by it only diodes D1-D4 - leaving RC filters separate for L and R channels. This would be reasonable because even SRPP's upper tube works as CCS, this is true only if SRPP designed well - matched on specific Rload.
You can read about it here - The Tube CAD Journal,SRPP Decoded .

If you need to calculate SRPP, just please write me - s.navikas@zebra.lt, I will do it with TubeCAD for my pleasure.

 

[regal]

SRPP sounds awful in a DAC, it is very load dependant. Just use a low Rp high gain tube in bypassed cathode with output from the anode. Use 6n6p or 5842 (for more gain), sounds much better than a SRPP, trust me I've tried many tube DAC stages.

 

[quanghao]

Simpler Simplistic design by Salas

A. Information about Salas shunt:
http://www.diyaudio.com/forums/powe...stic-mosfet-hv-shunt-regs-97.html#post2084348

Thank you Salas
_______________
B. Information PCB
+ One PCB:
2 x Simpler Simplistic
2 x Heater Power Supply+ Quality:
two layers , gold-plated, 1.6 mm thickness

C. The price includes:
PCB + Shipping (surface mail) + fee PayPal :

1. PCB = 30$
2. PCB = 55$
3. PCB = 85$
4. PCB = 110$

Hi everyone. Current everything I was ready to submit designs for manufacturers to make circuits.

So you have registered, please let me transfer the funds to my order soon.

Time to receive funding to start from today to 16-3-2010
When I receiving funding will be made immediately,
on the 22-3 production was finished 2 – 4 - 2010
Then I will send the first day for all of you!

Thank you and please transfer money to my account
My papal account: quanghao168@yahoo.com.vn