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Old 7th December 2011, 11:48 AM   #1651
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Quote:
Originally Posted by Lazy Cat View Post
... yes R6 connect to + and add Cx to T10 also.

Thanks for all great wishes, all the best to you too.
This one is in the middle of drawing phase and is a bottom layer only the top isn't displayed . . . yet . .
Need some more clear-sight nights to finish to the beta phase.

Really nice thank You guys for Yours sharp eyes and such great carry out with such a great precision, . . yes, sometimes long unsleepy nights easily introduce some unwanted errors... but for now all is under control . . .

My kind regards to all of You,

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Old 9th December 2011, 04:10 PM   #1652
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Default Tried some new value

Andrej,
because some value are hard to get here, so I prefer to re-use spare resistors I have now if possible.

I have change resistor value in the attached schematic and seems better is frequency response in LTspice simulation. (gain linearity, group delay, phase shift)
So can you help me check the schematic and values ? hope they are good, so that I can built them. Thanks in advance
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File Type: jpg SSA TT-Basic (Draft numbering).jpg (106.1 KB, 1028 views)
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Old 12th December 2011, 08:10 AM   #1653
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Lazy Cat, any progress on your build?
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Old 12th December 2011, 10:54 AM   #1654
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Hi igor0203

Thanks for the interest, yes, PCB-s will be ready by the end of this week, toroids, main heatsinks, Panasonic elcos, semiconductors, etc. already orderd. I'll post the pics of all the material which will be installed in SSA BIGBT HP and assembly itself, step by step. Hardly wait to get the components ...
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Old 12th December 2011, 11:03 AM   #1655
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I am looking forward to the results of this amplifier and do not hesitate to dissolve my amplifier ΤΙΤΑΝ 2000 (2SC5359-2SA1987 .... .....)
Very good job Lazy Cat - Alex.
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Old 12th December 2011, 01:01 PM   #1656
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Quote:
Originally Posted by Lazy Cat View Post
Hi igor0203

Thanks for the interest, yes, PCB-s will be ready by the end of this week, toroids, main heatsinks, Panasonic elcos, semiconductors, etc. already orderd. I'll post the pics of all the material which will be installed in SSA BIGBT HP and assembly itself, step by step. Hardly wait to get the components ...
Hardly waiting to see pics of your build and hear your impressions... If I'm not mistaken, you have/had access to some of best amplifiers on market and it will be interesting how your SSA will compare to them.
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Old 15th December 2011, 09:11 PM   #1657
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SSA BIGBT HP PCB-s caught me unprepared later today ... already checked small caps positions
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Old 15th December 2011, 09:17 PM   #1658
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Grats, the most thrilling part is commencing for you; building the darn thing Well.. apart from powering it up for the first time..
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Old 15th December 2011, 09:28 PM   #1659
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Yes it started, still awaiting for some parts ... The darn thing was tested and measured in so many ways-times on protoboards that there shouldn't be big problems. The layout and connections was also re-checked countless times, sooooo will see

The PCB material is 2 mm thick FR-4, copper connections thickness is exactly 0,115 mm (measured), dual layer layout with metalized holes - standard quality. Maybe only the colour will be changed into deep blue later on

Last edited by Lazy Cat; 15th December 2011 at 09:37 PM.
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Old 16th December 2011, 03:45 AM   #1660
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That's looking great, Andrej! Keep posting pictures. I'm curious to see the end result.
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