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At cost group buy of Aleph boards

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harvardian

Member
Joined 2001
#1
Hi Guys (Gals too, if any)


Based on lots of recent requests, I am willing to buy a new round of boards and offer them at cost (plus actual shipping).

For 50 boards, the cost would be $9.00 /per board. (4 wks)

2.5 Oz copper
Standard thickness

Single sided, no plated through holes
Top side silkscreen, green solder mask.

A two sided (only for plated holes) would increase the cost to $12/board.

If we could get 100 boards, the price would be 8.00 ea

Best Regards,

Dale

P.S. This is using the Patented designs of Nelson Pass, PCB layout from BrianGT
 
#15
Class AB from AlephX?

Ive read a lot of the thread but Im a bit uncertain on the final result. Is it 50 watt class A? Im hoping to build something like the X150 multi-channel with fairly low bias.
Does this design cross over to A-B once the bias current is exceded?
Im building the Linkwitz Orion speakers and I need 8 channels with equal gain and sensitivity. 4 of those channels will drive the bass and need to be capable of 100 watts the other four will be considerably less. If I biased the channels differently could I avoid the heat and still have equal gain and sensitivity on all 8 channels?
Id really like to use a pass design but I dont want a heater bigger than about 600-800 watts.
 
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