Yes, that is reference pre for my systum .
use 6h6, anode 150 v to 170 v, 5 -10 ma for 1/2 tube.
6h30 ,it best th choice. Thank
this is PRE 818 update, I use all Cap MKP for power supply, and use tube 6h30 DR + R2R volume control
you can buy tube in :Parts ConneXion - The authority on hi-fi DIY parts and components
you can buy tube in :Parts ConneXion - The authority on hi-fi DIY parts and components
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Yes it should, and it will be shortly.
It looks very similar to an item on the website. They even, quite coincidentally I'm sure, have the same name: 818.
My understanding is that a commercial vendor may discuss his products in the DIY area, provided he makes enough information available for anyone else to freely copy his design. Have I got that right?
My understanding is that a commercial vendor may discuss his products in the DIY area, provided he makes enough information available for anyone else to freely copy his design. Have I got that right?
Hi SY,
I look at the quanghao commercial website but I don't find this particular preamplifier kit, in fact, there seem to be no preamplifier kits at all at this moment. Of course, if he make a PCB for it, he will probably sold a kit for this preamp one of these days.
If you see a page on is website about this preamplifier, can you please give me the link ?
I am not interested to buy anything, I am just a bit curious ... Thanks !
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I think he should have this right, since he give all the necessary information to build one, nobody here have to buy is kit. Also, members of this forum can participate to the commercial development of is product, that's fun !
It is possible to be a diyer and a business man at the same time, many start their business like that, they first make projects for themselves, then for some friends having them paying the parts and finally for everybody on Internet, making a small profit for living ...
Hi DF96!
yes, it was on my website, but I have not sold any PCB!
Previously, I opened this thread in the discussion, to share, but do not understand why it was included in the trade.
In this design, you can use the schematic to make themselves a PRE, it sounds very good, but not commercial!
Thank you and hope you enjoyed it!
quanghao
yes, it was on my website, but I have not sold any PCB!
Previously, I opened this thread in the discussion, to share, but do not understand why it was included in the trade.
In this design, you can use the schematic to make themselves a PRE, it sounds very good, but not commercial!
Thank you and hope you enjoyed it!
quanghao
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