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Old 27th June 2009, 08:13 AM   #921
EUVL is offline EUVL  Europe
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Right at the bottom of the "Post Reply" page, you can attach files.
You need to reduce them to 100kB and less than 1000 pixels first.


Patrick
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Old 28th June 2009, 03:44 PM   #922
syn08 is offline syn08  Canada
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Default VSOP amp

Click the image to open in full size.

Specs are here.
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Old 28th June 2009, 09:00 PM   #923
jwb is offline jwb  United States
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Quote:
Originally posted by laipanda
[B]My new design precision SS preamp.
Inspirational!
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Old 28th June 2009, 10:13 PM   #924
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My new hybrid power amp.
12AU7 front end with MOSFET output transistors.
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Old 28th June 2009, 10:13 PM   #925
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My new hybrid power amp.
12AU7 front end with MOSFET output transistors.
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File Type: jpg 100_1776.jpg (97.3 KB, 1182 views)
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Old 29th June 2009, 07:06 AM   #926
Progg70 is offline Progg70  Sweden
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nigelwright7557: - Do tou have any pictures for the schematic. Have you any review for it or is it your own construction.

regard

Progg70
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Old 29th June 2009, 10:59 AM   #927
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Default Re: VSOP amp

Quote:
Originally posted by syn08
Click the image to open in full size.

Specs are here.

You could stick a few transistors more in that thing!

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Old 29th June 2009, 01:32 PM   #928
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Patience, this is Mr Popa's first shot.

Next one may have an output stage with 9 pairs of 230W power devices, 90V rails, and go by the name OP-WAN.
And a cheaper input opamp model, the Hello OAP-3500.

(still 6 months lead time on the Onsemi TT-devices, pff)
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Old 29th June 2009, 01:53 PM   #929
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Quote:
Originally posted by Progg70
nigelwright7557: - Do tou have any pictures for the schematic. Have you any review for it or is it your own construction.

regard

Progg70

It is my own design and construction.

Its basically an SRPP valve front end with a fairly standard class AB SS amplifier with IRFP920/9240 on the output.
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Old 30th June 2009, 06:42 AM   #930
CBS240 is offline CBS240  United States
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Default Re: Re: VSOP amp

Quote:
Click the image to open in full size.

Specs are here.

Originally posted by bogdan_borko



You could stick a few transistors more in that thing!

Yea, why waste so much empty PCB space? Not environmentally friendly there.

You ought to be able to cram the PCB with lots of them.

...like this....

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