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Old 5th November 2012, 10:27 PM   #111
bobfig is offline bobfig  United States
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yah i say that attachment from the link earlier you posted. i don't comprehend what its saying. if i had it in a scamatic style drawing i could maybe understand.
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Old 6th November 2012, 04:15 AM   #112
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Hi Bob,

Went window shopping for you. You could bring down the costs by using these options.
Capacitors
You may parallel as you wish
SLPX682M063E7P3 Cornell Dubilier Electronics (CDE) | 338-1651-ND | DigiKey
ECO-S1KP472CA Panasonic Electronic Components | P7372-ND | DigiKey
Transformers
1 * 800VA for stereo Antek - AN-8230
or
2 * 400VA for stereo Antek - AN-4232
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Old 6th November 2012, 04:29 AM   #113
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Quote:
Originally Posted by bobfig View Post
yah i say that attachment from the link earlier you posted. i don't comprehend what its saying. if i had it in a scamatic style drawing i could maybe understand.
Its the regular power supply represented as functional blocks .
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Old 6th November 2012, 07:15 AM   #114
bobfig is offline bobfig  United States
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Quote:
Originally Posted by OnAudio View Post
Hi Bob,

Went window shopping for you. You could bring down the costs by using these options.
Capacitors
You may parallel as you wish
SLPX682M063E7P3 Cornell Dubilier Electronics (CDE) | 338-1651-ND | DigiKey
ECO-S1KP472CA Panasonic Electronic Components | P7372-ND | DigiKey
Transformers
1 * 800VA for stereo Antek - AN-8230
or
2 * 400VA for stereo Antek - AN-4232
thanks for the help

wow so this is going to need 2 transformers and ima have to get 2 of those blue power supply boards? this thing seems like it dose swing some power. i wasn't expecting it to be so much tho. lol

so you're accepting this layout x2 with duel 400va transformers?

Click the image to open in full size.

also i notice that on the board there is coil 1 and coil 2 whats the measurement on that?
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Old 6th November 2012, 07:13 PM   #115
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Hi Bob,

Cooking an answer
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Old 6th November 2012, 07:16 PM   #116
bobfig is offline bobfig  United States
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i hope its yummy
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Old 6th November 2012, 07:28 PM   #117
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Quote:
Originally Posted by bobfig View Post
thanks for the help

wow so this is going to need 2 transformers and ima have to get 2 of those blue power supply boards? this thing seems like it dose swing some power. i wasn't expecting it to be so much tho. lol
so you're accepting this layout x2 with duel 400va transformers?
The on amp board 33u/47u capacitors are for the amp board and are part of the amp BOM. For PSU board you could parallel 3*2 = 6 : 6800 caps on the PSU board . Remember to use a line filter on the incoming a/c power line.

You have various options of transformers (assuming a stereo setup and operation with either 8 ohm or 4 ohm speakers (nominal 4 ohm, 2 ohm ), total stereo either 2 ohm or 1 ohm load on transformer). That brings recommended cap size to 20,000u per rail(total 40,000uf) for stereo.
Transformer rating
300VA*2, 400VA*2, 600VA*1, 800VA*1
Quote:
Originally Posted by bobfig View Post
also i notice that on the board there is coil 1 and coil 2 whats the measurement on that?
Thats the output inductor L1 connection. Its 1uH . The schematic is here http://www.harrisonaudiolabs.com/Amp...QC/1DIFFQC.pdf
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Old 6th November 2012, 09:58 PM   #118
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Originally Posted by bobfig View Post
i hope its yummy
Looking forward to review your choice again
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Old 6th November 2012, 10:05 PM   #119
bobfig is offline bobfig  United States
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hmm ok now i just need to slowly start buying parts as this is going to get expensive.
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Old 6th November 2012, 10:21 PM   #120
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Quote:
Originally Posted by bobfig View Post
hmm ok now i just need to slowly start buying parts as this is going to get expensive.
You could set a budget limit (just like big firms) and work around that ie , 2200u caps * 8 * $2 = $16
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