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Old 7th January 2012, 01:27 PM   #711
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Default It is much better ... congratulations, you hava fixed a lot o things

But several other things remained unchanged:

- Supply condensers can go up
- Lettering can have same size....small size
- 10 ohms resistor remained vertical
- Too much holes for the input capacitor is still there
- 150 ohms resistor is too much big
- Power emitter resistors too much big
- Big supply filter condensers continue too much low in the layout...touching screws
- Output resistor continue inside the coil

But the overall image is looking much better this way you have done.

Thank you,

Carlos
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Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg

Last edited by destroyer X; 7th January 2012 at 01:31 PM.
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Old 7th January 2012, 01:33 PM   #712
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About the resistor in coil it is yellow so it must and can be soldered under the board.About the emiter resistor it is the size of a standerd white one I also can take the radial types.The 150 Ohm resistor is a 3 watt type.

Last edited by meanman1964; 7th January 2012 at 01:36 PM.
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Old 7th January 2012, 05:56 PM   #713
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Default I see... the standard white one.

That floating resistor, the 150 ohms, can be a small resistor...it is an overkill to use such a big one...well..this does not harm the amplifier...it is just a waste of money and space into the board.

Keep it if you want...will not be bad.

Your board is looking great.

regards,

Carlos
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Old 8th January 2012, 02:14 PM   #714
BMW850 is offline BMW850  Netherlands
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Quote:
If you apply the correct supply voltage to the amplifier when the output bias is turned down to minimum then you can start setting up your amplifier.
Using Carlos' method.
Power down and insert a 100r in place of the +ve rail fuse. This 100r could be soldered permanently across the fuse holder terminals so that all you need to do to set up the amp is remove the fuse.



Can someone tell me how many Watts the 100R resistor should be?
I also need a 100R in place of the -ve rail fuse I supose.

I only need insulation (see picture) for the 3 TO220 housings on the big heatsinks, I don't know the name
Next weekend I test the amplifier, then I have all de parts also for the light bulb tester.

Regards,
Rudy
Attached Images
File Type: jpg isolatiebus.jpg (9.9 KB, 263 views)
File Type: jpg isolatie busjes.jpg (12.4 KB, 257 views)
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Old 8th January 2012, 03:06 PM   #715
Vigier is offline Vigier  Netherlands
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It's called "isolation bushing" or "washer bushing" I think..
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Old 8th January 2012, 04:05 PM   #716
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BMW850, how many do you need?
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Old 8th January 2012, 04:16 PM   #717
BMW850 is offline BMW850  Netherlands
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10 pieces but I need to order multiple items.
Thanks for asking, I appreciate that.
Please can someone tell me how many Watts the 100R resistor should be, then I can place the order

Regards,
Rudy
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Last edited by BMW850; 8th January 2012 at 04:45 PM.
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Old 8th January 2012, 05:10 PM   #718
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Hello BMW 850, where do you order these components?
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Old 8th January 2012, 05:27 PM   #719
BMW850 is offline BMW850  Netherlands
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OKAPHONE ELEKTRONIKA

Regards,
Rudy
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Old 8th January 2012, 06:59 PM   #720
BMW850 is offline BMW850  Netherlands
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Just a few photos so you all can see how far the construction now is
Please can someone tell me how many Watt's the 100R resistor should be, then I can place the order

Regards,
Rudy
Attached Images
File Type: jpg 20120108_203102.jpg (418.5 KB, 227 views)
File Type: jpg 20120108_203221.jpg (402.9 KB, 206 views)
File Type: jpg 20120108_203953.jpg (400.7 KB, 201 views)
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Last edited by BMW850; 8th January 2012 at 07:01 PM.
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