★★ Free PCB for JLH 2005 Class-A Amplifier - Page 13 - diyAudio
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Old 15th February 2013, 08:53 PM   #121
diyAudio Member
 
Join Date: Jul 2011
Hi
I have a schematic of an amp. are you interested in building it for me?
my email cowboy7272@hotmail.com
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Old 28th March 2013, 02:18 PM   #122
vancao is offline vancao  Viet Nam
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Join Date: Jul 2008
Hi Ray,

Just see the topic by now. Do you have couple of boards spared. I want to go with the team.

Thank you
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Old 29th March 2013, 12:38 AM   #123
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Join Date: Sep 2011
Yes we have plenty of the boards. Just get it online
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Old 11th April 2013, 03:46 AM   #124
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Join Date: Sep 2012
Location: Bendigo
Greetings
I am about to attempt my first amplifier project and i have chosen this one as my first.
I have a few questions about the power supply first. Does this amp require ac or dc voltage? i live in Australia so need 230v 50Hz. which one could you recommend to me? also it would be greatly appreciated if you could explain what i need to use in conjunction with the transformer.
Thankyou in advance for your help.
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Old 11th April 2013, 03:59 AM   #125
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Join Date: Sep 2011
it need a 18 to 22V DC power supply. an 100W toroid of dual 14 to 17V is recommended. This power supply unit is highly suggested:
Hi-End Power supply board with speaker protecting - Boards | Kits | Components | Modules | Tools

If you need an enclosure, RE3209H is the best choice:
Enclosure RE3209H 320X90X311 - Boards | Kits | Components | Modules | Tools
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Old 11th April 2013, 07:36 AM   #126
diyAudio Member
 
Join Date: Sep 2012
Location: Bendigo
Thankyou for your quick reply
so would this transformer be acceptable?
Buy Toroidal Transformers Transformer,toroidal,120VA,2x18V,3.333A RS 81548RS online from RS for next day delivery.
If so, do i connect the +18v and -18V to the psu you linked me?
thankyou
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Old 11th April 2013, 01:04 PM   #127
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Join Date: Sep 2011
this is nice for JLH amplifier!
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Old 13th April 2013, 06:35 PM   #128
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Join Date: Dec 2009
I quickly received the two pcb. Thank you Siliconray !
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Old 15th April 2013, 09:10 AM   #129
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that's great! Looking forward to see your photos and listen reviews!
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Old 29th April 2013, 07:09 PM   #130
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Join Date: Oct 2010
Default JLH Class A amp kit assembled -

Hi Siliconray,
I am interested to use this amp. I will be using this amp for powering the High frequencies and mid range drivers respectively in my stereo active amplifier system. Let me know if this amp is worth having for my type of set up.

let me know these queries as mentioned below-
1. Do you provide assemble kit?
2. Which transistors you suggest for High frequencies
3. Which transistors you advise for Mid range frequencies?
4. What other kits are required for making a complete stereo system? i mean PSU if any..
5. Give me Heat sink dimension for this class A amp.
6. Do you ship to India?

Regards,
Samrat

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that's great! Looking forward to see your photos and listen reviews!
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