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Old 18th May 2010, 01:13 PM   #11
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very nice ,

for the filament you have some board ?
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Old 18th May 2010, 02:04 PM   #12
neskor is offline neskor  Serbia
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maybe some group buy for filament pcb?
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Old 19th May 2010, 01:11 AM   #13
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Quote:
Originally Posted by neskor View Post
maybe some group buy for filament pcb?
i think it depend your like this design and the sound when you use this design for all DHT.
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Old 19th May 2010, 06:25 AM   #14
neskor is offline neskor  Serbia
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Quote:
Originally Posted by quanghao View Post
i think it depend your like this design and the sound when you use this design for all DHT.
we trust you
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Old 19th May 2010, 11:29 AM   #15
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at last Rod
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Old 19th May 2010, 12:24 PM   #16
работник
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Quote:
Originally Posted by nicoch46 View Post
at last Rod
The group buy really needs the transistors as well as the PCB. Amp builders are having trouble getting the low-Vce Japanese transistors, and the MJ150xx are nowhere near as good.

Maybe it is time I offered a board & transistor kit, or maybe a basic module (no heatsink for easy shipping), tested.

Is there a need for something like this?
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Old 20th May 2010, 12:34 AM   #17
mach1 is offline mach1  Australia
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Rod,

I think a lot of members would be interested.
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Old 20th May 2010, 01:25 AM   #18
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tonight, i use Salas shunt for drive HQ-DHT, its is very good
V-in 340 v vout 320V, I = 76 mA, Load 26+45 = 55mA. the sound is very detail.
It is better, when i not use Salas.
Thank Salas again!
Quanghao
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Old 20th May 2010, 07:54 AM   #19
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We know very well that Salas shunt sound good but the heat vs Rod ?
I need to power four 10Y .....
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Old 20th May 2010, 08:37 AM   #20
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Quote:
Originally Posted by nicoch46 View Post
We know very well that Salas shunt sound good but the heat vs Rod ?
I need to power four 10Y .....
This circuit is unique advantages:

1. great for all kinds of DHT tube (EX. tube 26 - no noise)

2. Better than AC filament

3. Special design ever

disadvantages:

1. Components not available

2. Heat, heat 2 to 8-10W for a burning heart
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