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Old 12th January 2018, 06:34 PM   #5551
chalky is offline chalky
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Default Dummy Load

Got fed up with my scruffy old, ad hoc, dummy load so I decided to build a more durable one. Does 4ohms ( 200W ) or 8ohms ( 400W ), with either 0.1uf, 1uf, or no capacitor in parallel. Monitor output is selectable from directly across the load or via a 10:1 attenuator.
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File Type: jpg DSCN2294.resized.JPG (157.4 KB, 1115 views)
File Type: jpg DSCN2295.resized.JPG (148.1 KB, 1094 views)
File Type: jpg DSCN2297.resized.JPG (165.3 KB, 1095 views)
File Type: jpg DSCN2299.resized.JPG (177.8 KB, 1086 views)
File Type: jpg DSCN2301.resized.JPG (150.1 KB, 1023 views)
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Old 12th January 2018, 06:42 PM   #5552
kct is offline kct  Canada
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Post your Solid State pics here.
^^^ very nice and useful addition to the shop.
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Old 13th January 2018, 05:59 AM   #5553
rottalpha is offline rottalpha  United States
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Quote:
Originally Posted by alex mm View Post
USSA 5.0 audio amplifier
fantastic chraftsmanship!
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Old 14th January 2018, 02:06 AM   #5554
alex mm is offline alex mm  Romania
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fantastic chraftsmanship!
thank you .
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Old 15th January 2018, 04:08 PM   #5555
Bigun is offline Bigun  Canada
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Post your Solid State pics here.
wow, that's a fancy load ! (could add a thermal cutout ?)
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Old 15th January 2018, 05:07 PM   #5556
chalky is offline chalky
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Yeh, a thermal cut out would be a good addition for soak testing powerful amplifiers. Thanks for the idea; simple to add so I might just do it.
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Old 17th January 2018, 06:13 AM   #5557
borys is offline borys  Ireland
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New year, so time for the new projects, some are smaller and some are bigger.
Mini PSU for audio amplifier, DC protect, delayed ON and fast OFF build in.
Attached Images
File Type: jpg PSU25mm_1.jpg (168.3 KB, 285 views)
File Type: jpg psu25mm_2.jpg (162.0 KB, 248 views)
File Type: png top.png (153.8 KB, 233 views)
Attached Files
File Type: zip AMP PSU - Documentation.zip (129.0 KB, 53 views)
File Type: zip Mini PSU 35mm - Documentation.zip (274.5 KB, 40 views)
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Old 17th January 2018, 09:33 AM   #5558
smartx21 is offline smartx21  Brazil
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Quote:
Originally Posted by borys View Post
New year, so time for the new projects, some are smaller and some are bigger.
Mini PSU for audio amplifier, DC protect, delayed ON and fast OFF build in.
Very nice and useful!
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Old 17th January 2018, 10:08 AM   #5559
smartx21 is offline smartx21  Brazil
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Originally Posted by borys View Post
New year, so time for the new projects, some are smaller and some are bigger.
Mini PSU for audio amplifier, DC protect, delayed ON and fast OFF build in.
A lynx-eyed guy (not me) found this...
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Old 17th January 2018, 01:38 PM   #5560
borys is offline borys  Ireland
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smartx21

Thanks a lot.

That is ctrl+C and ctrl+V job hehe.
Corrected files below.

Thanks
Attached Files
File Type: zip AMP PSU 25mm - Documentation.zip (129.0 KB, 41 views)
File Type: pdf Simple PSU 25mm schematic.pdf (35.7 KB, 86 views)
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