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Old 28th April 2012, 10:14 AM   #1
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Default my gilmore class A amp

This is a amplifer desined by Kelvin Gilmore in headwize's article. I made it myself last month. It used 2SK170/2SJ74 in place of 2SK389/2SJ109. Sounds very exellent. very comfortable and smooth. more wide more airy. I love it. It's one of the best in my DIY headphone amp collection.^^
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Old 15th May 2012, 02:34 PM   #2
Jenyok is offline Jenyok  Russian Federation
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Where could We see schemes of this devices ?
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Old 15th May 2012, 03:41 PM   #3
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I believe it's based on this.
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Old 16th May 2012, 06:45 AM   #4
Stixx is offline Stixx  Germany
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Quote:
Where could We see schemes of this devices ?
and here... HeadWize - Project: A Pure Class A Dynamic Headphone Amplifier by Kevin Gilmore
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Old 19th May 2012, 12:47 AM   #5
RNMarsh is online now RNMarsh  United States
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K. Gilmore's electrostatic headphone amp looks great. Are pcb available - bare or stuffed?
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Old 20th May 2012, 11:09 AM   #6
Telstar is offline Telstar  Italy
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Originally Posted by RNMarsh View Post
K. Gilmore's electrostatic headphone amp looks great. Are pcb available - bare or stuffed?
I think there are no more pcbs avail from AMB, only two commercial versions fully built.
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Old 20th May 2012, 04:21 PM   #7
endia is offline endia  Turkey
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RNMarsh, i have 1 set of dynahi pcbs (2 amp and 1 ps pcb) never populated.. if you interest pm please, thanks..
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Old 20th May 2012, 06:43 PM   #8
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K. Gilmore's electrostatic headphone amp looks great. Are pcb available - bare or stuffed?
You can find the designer here.
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Old 20th May 2012, 08:01 PM   #9
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All those paralleled small signal output transistors could have been replaced with just a pair of BD139/140.
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Old 20th May 2012, 08:02 PM   #10
Telstar is offline Telstar  Italy
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All those paralleled small signal output transistors could have been replaced with just a pair of BD139/140.
And they would sound better IYO?
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