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Old 29th July 2005, 09:03 PM   #1
dioh10 is offline dioh10  Mexico
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Question Can I Use This?

Hi I'm trying to make a power amp 90 watts with four 2N3055, Can I Use This Power Amp With A Guitar Preamp? And Other Thing, In The Schem I Have It Says That I Need An 80 volt 1.5 ampere Power Supplie, Is It Possible To Do It? And The Last Thing, Do I Have To Put 100 volt rated capacitors?
Hope Someone soves My Questions
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Old 29th July 2005, 09:16 PM   #2
edl is offline edl  Hungary
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Dear friend,

Please post us the schematic!

Thanks, regards
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Old 29th July 2005, 09:18 PM   #3
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Quote:
Can I Use This Power Amp With A Guitar Preamp
Do you want to run an amp dedicated for hi-fi as a guitar amp or you want to use guitar preamp for hi-fi?
I guess first. If I'm correct, than yes, 90 Watts power amp is probably suitable for guitar unless you want to overdrive it. Than you would need more output devices.

Quote:
I Need An 80 volt 1.5 ampere Power Supplie, Is It Possible To Do It?
No, you need more current if you want to run 8ohm speaker.

Quote:
Do I Have To Put 100 volt rated capacitors?
Yes. Or even more.
regards
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Old 29th July 2005, 09:19 PM   #4
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Default Yes, you can produce a 90 watts RMS amplifier using 2N3055 transistors

Also you can construct a 70 volts supply, using the external wires of a conventional 35 plus 35 symetrical supply.

Of course, a 90 volts supply can be constructed using a common 45 plus 45 volts simetrical supply, changing rectifier connections.

Yes, you will need 100 Volts rated capacitor.

Buen trabajo hermano, una tequilla pra nosotros.

sade.

Good work brother, one drink for us

Cheers,

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
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