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Old 14th October 2012, 07:31 PM   #2281
AndrewT is offline AndrewT  Scotland
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temporarily remove the reg and use the -24Vdc direct to the fan.
Don't get the zero volts mixed up (that part of the sch is upside down compared to conventional).
That should work.
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Old 14th October 2012, 09:46 PM   #2282
wiljj78 is offline wiljj78  Philippines
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Quote:
Originally Posted by AndrewT View Post
temporarily remove the reg and use the -24Vdc direct to the fan.
Don't get the zero volts mixed up (that part of the sch is upside down compared to conventional).
That should work.
Thanks Andrew! it works...

Regards,
Wiljj78
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Old 16th October 2012, 05:09 AM   #2283
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Quote:
Originally Posted by apexaudio View Post
B500 based on schematics of H900, but in AB class.
Power supply +/-90Vmax.


A and B.

The points A, B; for serving

what is its use

Last edited by SERGIODS; 16th October 2012 at 05:12 AM.
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Old 16th October 2012, 08:08 AM   #2284
wiljj78 is offline wiljj78  Philippines
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Quote:
Originally Posted by vargasmongo3435 View Post
Hi guys!

I was doing this layout and I'm not sure if I got it correctly I spend maybe more than 5 hours or more, please is some one can see any error please let me know I have also the Sprint Layout format so you can use it too, I will share this for you guys. my brain is like this

Regards
vargasmongo3435
Hello Juan,

Please note there is open track on 4148, see attached pic.

Regards,
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Old 16th October 2012, 08:17 AM   #2285
wiljj78 is offline wiljj78  Philippines
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Quote:
Originally Posted by SERGIODS View Post


A and B.

The points A, B; for serving

what is its use
Hi Sergiods,

Read post #1301.

Regards,
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Old 16th October 2012, 01:28 PM   #2286
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Hi good morning, how's it go this morning? With me it can go well, if I short out my amplifier and get it work like I wanted to be. I attach some pictures to show you how it looks. If you can see the left side of the 2sc5200, they not warming up like the right side of the 2sa1943 transistors. When I power it up with dc +55v -55v the right side of the 2sa1943 transistor the first transistor from your left side getting very hot and burn out. I build it exactly from the schematic like it is. But but still getting the same problem with it.

https://fbcdn-sphotos-h-a.akamaihd.n...39a0a4f65208a3
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Old 17th October 2012, 12:53 AM   #2287
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pls give PDF file this PCD
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Old 17th October 2012, 05:25 AM   #2288
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Quote:
Originally Posted by Sadaru View Post
pls give PDF file this PCD
I offer an apology for my mistake. This is the picture where you see the flaw and the transistor burns
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Old 4th November 2012, 08:23 AM   #2289
IRSound is offline IRSound  Germany
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Originally Posted by IRSound View Post
thanks mile ,
I've already have two schematic for 2ohm loads. which one is the best ?

B500 with triple darlington or B500TEF ? do you have another schematic for TEF ?
because i think B500TEF schematic isn't correct. for example it seems to operate with lower rail voltages. (15A fuse - BD681 ,etc)

Regards
Hi mile ,
Can you help me for 2Ohm version ?

Regards,
IRSound
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Old 12th November 2012, 01:28 PM   #2290
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Thumbs up B100 & B500 TEF

Thanks APEX, this is my second B100, and Driver B500 TEF the first time I've made, I want to use the 8 pairs toshiba, how many volts do I need for the maximum and minimum Ampere Transformer? how many watts I get to 8 pairs of Toshiba?

Sound is get very clear and very nice, power is one of my favorites.

greetings. Damanhuri
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