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Old 27th December 2009, 06:43 AM   #1211
Nrik is offline Nrik  Denmark
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Very Nice metal-work and PCBs HKC.
On picture two it looks like the cooling fins are too high...is it an optical illusion or..?
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Last edited by Nrik; 27th December 2009 at 06:45 AM.
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Old 27th December 2009, 11:26 AM   #1212
HKC is offline HKC  Hong Kong
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Quote:
Originally Posted by Nrik View Post
Very Nice metal-work and PCBs HKC.
On picture two it looks like the cooling fins are too high...is it an optical illusion or..?
Hi Nrik

The fins are just about 3mm distance from the top plate.
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Old 27th December 2009, 11:24 PM   #1213
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Default szekeres headphone amp

just finished my szekeres-based desktop headphone amplifier with active ccs and expanded l.f. response... (my first completed amplifier!) webpage with info is here: geekysuavo.org/lassie.

Click the image to open in full size.

~ brad.
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Old 27th December 2009, 11:27 PM   #1214
Bonsai is offline Bonsai  Taiwan
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HKC, where did you get your enclosure? Self made or did you buy it in?

Very nice looking project!
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Old 28th December 2009, 02:00 AM   #1215
HKC is offline HKC  Hong Kong
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Originally Posted by Bonsai View Post
HKC, where did you get your enclosure? Self made or did you buy it in?

Very nice looking project!
Hi Bonsai

I designed the case to fit the pcb and custom order from a manufacturing house in China. It is made of 6061 Aluminum.

Best Regards
Gary
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Old 28th December 2009, 12:27 PM   #1216
syn08 is offline syn08  Canada
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Default HPS 4.1 is ready

Before closing the lid:

Click the image to open in full size.

A new box installed in the phono stack, ready for listening tests.

Click the image to open in full size.

All I can tell so far: after 108dB of gain at 60Hz, zero hum, ear on grille on my 97dB horns. And also zero hiss.
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Old 28th December 2009, 12:54 PM   #1217
Bonsai is offline Bonsai  Taiwan
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HKC, can you tell us who the manufacturing house is?
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Old 28th December 2009, 02:42 PM   #1218
HKC is offline HKC  Hong Kong
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HKC, can you tell us who the manufacturing house is?
Hi Bonsai

Sure, can I send you the information through private message or e-mail?
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Old 29th December 2009, 12:14 PM   #1219
Nrik is offline Nrik  Denmark
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syn08 : I tried to find the thread where you 'bragged' about your new circuit, but I couldn't find it. Would you...?
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Old 29th December 2009, 12:43 PM   #1220
syn08 is offline syn08  Canada
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syn08 : I tried to find the thread where you 'bragged' about your new circuit, but I couldn't find it. Would you...?
HPS 4.0 phono stage
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