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Old 7th November 2007, 11:13 PM   #91
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Quote:
Originally posted by Babowana



You don't need to worry about.
But, not me . . .



Baobabo ........ you're emotional again...........



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Old 7th November 2007, 11:23 PM   #92
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Quote:
Originally posted by Lovan
So who will be first to make som nice boards for these beauties?
I seem to remember someone selling something similar a while back, what was it..... Babble-something....?




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Old 7th November 2007, 11:29 PM   #93
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Quote:
Originally posted by mpmarino


I seem to remember someone selling something similar a while back, what was it..... Babble-something....?







but that was "pizza & beer" (ad)venture , not a group buy ........



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Old 8th November 2007, 02:59 AM   #94
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A list of changes to the BrianGT Mini-A boards would be cool...if you could even convert a Mini-A into a mini AJ. I dunno.
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Old 8th November 2007, 03:36 AM   #95
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Make a daughter board that plugs into the main board.

Grey
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Old 8th November 2007, 04:26 AM   #96
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A piggy-back board is only needed for aesthetic reasons because of J vs MOS pinouts...if you're ready to twist and shout, you get an instant AJ.
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Old 8th November 2007, 07:37 PM   #97
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Aleph J PCB? Here ya go.
Board measures 80x100 mm, single sided, no wires. It's exactly Papa's schematic, I only left out the input coupling cap (1) for greater flexibility.
Comments welcome.
Attached Images
File Type: gif aj_pcb1.gif (24.2 KB, 2250 views)
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Old 8th November 2007, 07:49 PM   #98
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Quote:
Originally posted by HBarske
Aleph J PCB? Here ya go.
Board measures 80x100 mm, single sided, no wires. It's exactly Papa's schematic, I only left out the input coupling cap (1) for greater flexibility.
Comments welcome.

I like it

if you wanna use small MF resistors , make R5 from two in series ;
dissipation issue
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Old 8th November 2007, 08:04 PM   #99
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Quote:
make R5 from two in series; dissipation issue
Good hint, thx Choky. U're right, dissipates >300 mW.
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Old 8th November 2007, 08:13 PM   #100
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Quote:
Originally posted by HBarske

Good hint, thx Choky. U're right, dissipates >300 mW.

if you ask me - I'll stick with two bjt CCS , even if Papa choose simpler one ;

besides better temp. behavior of two bjt version , comparing it with one bjt version, one issue is certainly important - thurn on thump must be greater - look at 10uF across zenner .

maybe I'm wrong , maybe I'm not ;

in any case - I'm sure that Papa's schematic is good enough , as always
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