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Old 20th October 2013, 02:36 PM   #641
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Are you guys talking about R5, the current setting resistor for the zener on the FE ccs, as seen in post 663?
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Old 20th October 2013, 02:41 PM   #642
12B4A is offline 12B4A  United States
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The CMF55 resistors you specced in the BOM are 1/2 watt rated @70șC and 1/4 watt @125șC.

Last edited by 12B4A; 20th October 2013 at 02:47 PM. Reason: clarification
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Old 20th October 2013, 02:43 PM   #643
Zen Mod is offline Zen Mod  Serbia
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sole resistor needing more oomph here is LED voltage dropper

make it from two in series or parallel , whatever
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Old 20th October 2013, 07:02 PM   #644
WalterW is offline WalterW  Netherlands
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Quote:
Originally Posted by Zen Mod View Post
Q1b ?

you still can ....... but correct that logic
Oeps you're right it is about 4 volts higher
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Old 13th December 2013, 07:50 PM   #645
delecoy is offline delecoy  United States
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Default Aleph J V2 store boards

How are the new V2 store board different from the last version?
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Old 13th December 2013, 09:20 PM   #646
6L6 is offline 6L6  United States
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Re-sized to fit the UMS, so the output PCBs and Front-End will fit in a 5U. (nice!)

Many more places for wire connections. (this is a big deal...)

Silkscreen updated so all PCB follow numbering of the F5Tv3 schematic in Nelson's original article.
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Old 13th December 2013, 09:23 PM   #647
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Jim,

ALEPH J!!!
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Old 13th December 2013, 09:31 PM   #648
6L6 is offline 6L6  United States
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Lol... Sorry.



All the Aleph J boards in the store have been the "v2" - the v1 was the green prototype boards that were used as proof of concept. There were a few, very minor changes made from those to the production blue ones.
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Old 13th December 2013, 10:58 PM   #649
delecoy is offline delecoy  United States
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Thank you much
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Old 22nd December 2013, 11:01 PM   #650
roger57 is offline roger57  Canada
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Default Correct Wiring - RCA Inputs to PCB

Sorry to ask this question which may be redundant - but I've been unable to see a wiring diagram that clearly shows wiring an RCA input jack to the latest rev of PCB (Blue PCB)

I understand the shield around the cable gets tied to ground at one side only, then to a STAR point; the center conductor goes to the "+IN" point.

Where does the "-IN" get connected to?

Thanks
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