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Hoffman Amplifiers > Other Stuff > Solid State (Moderators: Geezer, tubenit, PRR, sluckey) > IRF820 Stuff
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TIMBO
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« on: September 07, 2011, 12:08:13 am »
Hi guys, I was looking for some info regarding the IRF820 mosfet and came across some handy uses of this device so i drew these up if anyone has a need to add reverb and tremolo and don't have the room or current for tube circuits.As always this is stuff i found on "the net" so i do not know if it works (Electar30 by Michael J Donovan). Thanks
* IRF820 SS FX LTPI.sch (34.04 KB - downloaded 147 times.)
* IRF820 SS FX SPLIT PI.sch (36.26 KB - downloaded 92 times.)
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tubenit
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« Reply #1 on: September 08, 2011, 06:57:29 am »
Timbo,

VERY cool!!!  Thanks for sharing that.  Good stuff to know.

with respect, Tubenit
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« Reply #2 on: September 08, 2011, 09:45:13 am »
The two MOSFETs are arranged similar to a cascode of tube triodes.

Can you share a link to a discussion of these circuits?

Very cool stuff IMHO.

Chip
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« Reply #3 on: September 08, 2011, 10:05:54 pm »
.

* IRF-miss-ground.gif (3.67 KB, 316x384 - viewed 183 times.)
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TIMBO
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« Reply #4 on: September 08, 2011, 11:07:19 pm »
This is where i found it. http://www.blueguitar.org/new/articles/other/mikede30.pdf
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TIMBO
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« Reply #5 on: September 08, 2011, 11:08:59 pm »
Thanks PRR.
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TIMBO
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« Reply #6 on: April 14, 2012, 06:58:42 pm »
Hi guy's, More interesting stuff, it may help to understand how these little buggers work.
http://www.hawestv.com/
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PRR
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« Reply #7 on: April 16, 2012, 12:13:27 am »
Mechanical TV??
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tubenit
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« Reply #8 on: April 16, 2012, 11:53:39 am »
What about using those to create an active FX loop like a D-lator?

Anyone tried this?

With respect, Tubenit

* FX active & ss.GIF (39.16 KB, 981x673 - viewed 100 times.)
* FX active & ss.sch (36.09 KB - downloaded 19 times.)
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