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Old 21st September 2011, 06:33 AM   #871
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Aleksi. It looks very tidy.
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Old 22nd September 2011, 10:53 AM   #872
ryanj is offline ryanj  Australia
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Default My unfinished F5

Here is my F5 not yet complete, but getting very close.
I still have to Anodized the top and front plates "clear mat", and paint black the perforated plates and two stripes on the front plate where the white LED's are going. The clear mat finish should come up nice.
And also some feet to stand on.

Can't wait to listen to it again.

Ill post the finished product soon.

2011-09-22 16.32.30.jpg
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Old 22nd September 2011, 01:58 PM   #873
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Default mosfet12

mosfet12
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Old 23rd September 2011, 11:02 AM   #874
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Here are some pictures of my Aleph P 1.7 .

AP Aufbau 23.jpg AP Aufbau 24.jpg

AP Aufbau 11.jpg

It sounds awesome combined with Aleph J and Pearl but Aleph Ono is coming soon ...
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Old 27th September 2011, 12:40 PM   #875
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Aleph 30
Click the image to open in full size.


Aleph P 1.7 (work in progress)
Click the image to open in full size.
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Last edited by AndreaFx; 27th September 2011 at 12:55 PM.
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Old 27th September 2011, 12:50 PM   #876
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Andrea, all that capacitors are for signal coupling purposes?
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Old 2nd October 2011, 08:39 AM   #877
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The Best - First Watt F3
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Old 4th October 2011, 12:46 AM   #878
Botte is offline Botte  United States
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Default A75 to BA-3 Conversion

Here is the re-tasking of my A75 Chassis and output section to the BA-3. The sound is quite nice and the Bias and DC offset is more stable than the original A75.
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Old 4th October 2011, 01:31 AM   #879
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Default Hafler Pro2400 to Delite conversion.

Here's a picture of my Hafler Pro2400 to Delite conversion. Using an IRFP240 as a capacitance multiplier, 500W/120V halogen tube for a load resistor. Signal transistor is a IXTH6N50D2, 52V after the capacitance multiplier, 23.5V at the drain, 1.6A.

With the capacitance multiplier, barely audible hum at the listening position, no HF hash even with my head stuck into these:

Sound is pretty good so far, need to play with some bypass caps for the output electrolytic..

Roscoe
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Old 5th October 2011, 03:31 PM   #880
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Quote:
Originally Posted by Andrej Maximov View Post
The Best - First Watt F3
Andrej,

It looks like you used the 400mm deep (two heatsinks each side) Pessante Dissipante from Modu. I have a similar chassis in my garage. How did you arrange the transistors and how many watts per device are the heatsinks dissipating? I was thinking of using the same heatsinks for the BA-2 (three pairs of mosfets for each channel). Do you think it is up to the job?
Chris
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