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Author Topic: Easy ss battery power amp?  (Read 11623 times)

polo16mi

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Re: Easy ss battery power amp?
« Reply #15 on: July 01, 2012, 10:53:25 PM »
2N5458 and MPF102 are equivalent, you can use it. Looks like 2N5484 too. I suggest you search his datasheets at http://www.datasheetcatalog.net

Here are:

2N5484
2N5458
MPF102
J201

el nino

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Re: Easy ss battery power amp?
« Reply #16 on: July 01, 2012, 11:07:41 PM »
thank you very very much roly16
my guitar want's to kill your father

Alexius II

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Re: Easy ss battery power amp?
« Reply #17 on: July 02, 2012, 02:55:15 AM »
Sorry, but 2N5458 and MPF102 preform quite differently in those ROG circuits.
The MPF102s that I got - they have twice the Vp and twice the Idss of my 2N5458s.

Even more different is the J201 with it's very low Idss and Vp.
And in most ROG circuits it sounds better than "replacements".

I strongly suggest finding all three (and I also like 2N5457) and testing them out.
You will find some sound better in one circuits, and some in other.

tonyharker

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Re: Easy ss battery power amp?
« Reply #18 on: July 02, 2012, 04:54:56 AM »
Look here < http://www.hawestv.com/amp_projects/fet_preamp/fetpreamp1.htm > some information about equivalents.

el nino

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Re: Easy ss battery power amp?
« Reply #19 on: July 08, 2012, 04:20:09 PM »
thank's guy, i've allready ordering them... While it on the way i build this, Guvnor with tba820 1watt amp... It's sounds like 80's rock& i think much better than ms2 mini amp...  sory for the mess, check it out
« Last Edit: July 08, 2012, 04:48:12 PM by el nino »
my guitar want's to kill your father

J M Fahey

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Re: Easy ss battery power amp?
« Reply #20 on: July 08, 2012, 04:54:38 PM »
Congratulations.
I'm *sure* it sounds much better than Marshall's mini-amp.
And TBA820 is much better than LM386.
More complex, of course, so it's not that popular.

el nino

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Re: Easy ss battery power amp?
« Reply #21 on: July 09, 2012, 02:33:08 AM »
i've try bridged lm386, sound bad... So i cut the wire, then asemble tba820...krankk, i got 80's rock sound... But it's get noisy, i think because unshielding wire and jacks...
Many thanks for this forum, i learning a lot from here...
Maybe somebody has sugesstion on 60-100 watt discrette power amp?
Regards
my guitar want's to kill your father

J M Fahey

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Re: Easy ss battery power amp?
« Reply #22 on: July 10, 2012, 08:28:11 PM »
google "rod elliott project 27"

el nino

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Re: Easy ss battery power amp?
« Reply #23 on: August 03, 2012, 05:00:32 PM »
i've got an idea of making eighteen from ROG to go with tba820 on 9volt as a practice amp, but i plan to add ROG big daddy dist. in front of it as a boost channel like this:
guitar => big daddy (bypass on/off)=> eighteen=> pwr amp
question is, could it work? Or any suggestion for better design?
i love the tone of eighteen & metal sound of big daddy, that's why i choose them
regard's  NINO
my guitar want's to kill your father