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Old 10th February 2013, 04:57 AM   #181
mikelm is offline mikelm  England
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Brianco

Lateral Mosfet

and

Farnell UK have something also
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Old 10th February 2013, 06:06 PM   #182
sonnya is offline sonnya  Denmark
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I could buy Them at Farnell or another distributor.

Just how Many should i Stock???
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Old 10th February 2013, 06:12 PM   #183
brianco is offline brianco  Ireland
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Thanks for that mikelm and Sonnya.

Farnell UK have the p devices, but out of the n version.

mikelm,

your Essex based guys didn't even show on my searches! I will try them tomorrow am.

Incidentally Sonnya, can these amps be bridged?
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Old 10th February 2013, 06:17 PM   #184
sonnya is offline sonnya  Denmark
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Yes but the output impedance will be doubled.
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Old 10th February 2013, 06:25 PM   #185
brianco is offline brianco  Ireland
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Many thanks.
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Old 28th April 2013, 03:09 PM   #186
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Sonny.
Got the boards built up today, but will not get to listen, as I accidentally clipped R3 when trimming wire after solder. What brand SMD's did you use. I have an order coming from Mouser and I can add it.
Mike, Salas,
Any mods that you have done that have improved things. I have read a few, but do not know where the final decision stands. Going with Caddock TF for important spots, as I have heard this amp is worth it and i like the sound of these. If other suggestions, please let me know.
I will be running 26V rails and will try bias at 1A, as I see that Vgeorge has done so.
PSU will be dual mono with 400VA transformer and 44mF per rail.
Also,
Little unsure about all the WIMa's I got. NOt sure which to use, as ther are just a couple of spots and I have an excess. No part numbers, so there value is not so clear either.
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Last edited by buzzforb; 28th April 2013 at 03:19 PM.
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Old 28th April 2013, 05:36 PM   #187
vgeorge is offline vgeorge  Greece
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Try without the bypass 1uF capacitors on the rails. We listened with and without and liked more without.
Also my impression is that sounded better at the lower gain setting, but difference is marginal.
An excellent amplifier anyway!
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Old 28th April 2013, 05:48 PM   #188
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THank Vgeorge. Any special parts or did you stick with what you had? TF is upgrade, but PRP is cheaper and good quality.
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Old 28th April 2013, 06:13 PM   #189
vgeorge is offline vgeorge  Greece
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I bought all the parts from Sonny. You can see in the BOM.
What is TF and PRP? Caps?
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Old 28th April 2013, 06:29 PM   #190
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Resistors for the positions he said were important.
Caddock TF and PRP9372
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