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Old 14th October 2008, 07:31 AM   #541
lineup is offline lineup  Sweden
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thanks jacco
We can download this Motorola Fully Symmetrical amplifier here:
http://home.eunet.cz/rysanek/pdf/
Motorola AN1308-D: mot-amp2.pdf

There is also one other motorola amplifier Note: mot-amp.pdf
And one IRF HEXFET Amplifier application: irf-fet-amp.pdf

The Philips short note/tutorial on OpAmps may interest some
AN165: Integrated operational amplifier theory. philips-on-opamps.pdf

Attachment:
Motorola Fully Symmetrical 100 Watt, using 3 pairs of 2SC3281-2SAS1302
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File Type: png motorola_100w_sc3281-sa1302.png (47.2 KB, 2686 views)
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Old 14th October 2008, 08:00 AM   #542
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Default Hi!

We can download this Motorola Fully Symmetrical amplifier here:




Schematic is OK, but PCB is Nightmare.

Regards zeoN_Rider
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Old 14th October 2008, 07:56 PM   #543
alex mm is offline alex mm  Romania
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Default PCB nightmare ?

Hi,
Zeonrider , PCB top side for this amplifier http://i35.tinypic.com/30kf1g0.jpg
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Old 14th October 2008, 10:09 PM   #544
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Beautiful piece of work.
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Old 14th October 2008, 10:37 PM   #545
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Default Nightmare of PCB !

Quote:
Originally posted by jacco vermeulen
Beautiful piece of work.
Beautiful,Beautiful, but only one side?!

Half of Nightmare stil egsist!

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Old 15th October 2008, 03:32 AM   #546
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Default Re: Motorola 100 w audio amp

Quote:
Originally posted by alex mm
..... my new amp from Motorola application note http://i36.tinypic.com/2u76jro.jpg alex mm
hi alex,
how do you fabricate in silkscreen and what is the size of the board? thanks.
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Old 15th October 2008, 07:45 AM   #547
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Quote:
Originally posted by zeonrider
only one side
Z-R,
you think he likes to do single-sided layouts ?
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Old 15th October 2008, 08:05 AM   #548
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Default Hi JV!

Now I can see blue lines are jumpers



But size???

Regards zeoN_Rider
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Old 15th October 2008, 08:41 AM   #549
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Quote:
Originally posted by zeonrider
size
Looks like something in the order of 8.5" x 3"
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Old 15th October 2008, 04:26 PM   #550
alex mm is offline alex mm  Romania
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Default pcb size

Hi,
Main board PCB are 208 mm X 73 mm .Silk screen it's printed with toner transfer technique .
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