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Old 20th February 2011, 05:03 PM   #1
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Default Stolen Trademark Amplifier from Jim's Audio on EBAY

I bought 2 of these boards today from Ebay

High Power Pure Class A amplifier PCB KSA100 ! - eBay (item 320659739390 end time Mar-21-11 10:04:10 PDT)

Can anyone tell me about the finished product?
Does anyone have experience building this?

Has anyone bought toroid transformers to build a supply for it?

I should receive the boards in 3 weeks.
thanks
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Old 24th May 2011, 04:04 PM   #2
xslavic is offline xslavic  Moldova
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Default hello

i dont know why yout got this,but ...im currently building the ksa 100 mkii,& i already got the transformer,its BIG ,has 4 different voltages ,the 38 v is center tapped ....i have all the pieces except Heatsink & case ...& of course have to think of a preamplifier -have any suggestion ?
-if you have any question -ask? (take note that i didnt build it yet )
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Old 25th May 2011, 02:56 PM   #3
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I have ordered the same boards myself. They are good quality if you ask me.

I am far from finished, but the most resistors are already soldred to the PCB.

Click the image to open in full size.

Have you received the PCB's already?
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Old 25th May 2011, 03:50 PM   #4
john65b is offline john65b  United States
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I have a power supply right from a real KSA-300 for sale... It does not have a transformer, just caps, rectifier, etc...

I also have the Chassis from a real KSA-300 that I don't know if I want to sell...but if price is right....

Krell KSA300 Power Supply Board
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Old 25th May 2011, 04:25 PM   #5
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Nice! I would be really interested if I lived in America, but I live in Holland instead, so I think shipping would be too expensive for me.
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Old 26th May 2011, 07:25 AM   #6
neychi is offline neychi  Croatia
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Quote:
Originally Posted by Kaplaars View Post
I have ordered the same boards myself. They are good quality if you ask me.

I am far from finished, but the most resistors are already soldred to the PCB.

Click the image to open in full size.

Have you received the PCB's already?

Excelent boards. Just be careful. There's a misprint on the boards. Look at the schematic. Resistors 20k and 47k next to the 150R should be 4k7 on the right front side of the boards
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Old 26th May 2011, 08:38 AM   #7
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How stupid of me, didn't notice the misprint. Thanks for your input Neychi :-)

Do you have this boards as well?
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Old 26th May 2011, 09:17 AM   #8
xslavic is offline xslavic  Moldova
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nice boards, i could sell a pair of ksa 100 mkii if youre interested
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Old 30th May 2011, 10:23 AM   #9
neychi is offline neychi  Croatia
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Quote:
Originally Posted by Kaplaars View Post
How stupid of me, didn't notice the misprint. Thanks for your input Neychi :-)

Do you have this boards as well?
Yes, I have them too
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Old 30th May 2011, 12:21 PM   #10
xslavic is offline xslavic  Moldova
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do you suggest using low ESR caps for the mainboard ?
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