| peranders |
Nice work. :up: :nod:
Feel free to join my exclusive :D webring for Gainclones.
http://C.webring.com/hub?ring=gaincloneamplifi
Scott Nixon, if you read this, feel free to join me too. 29000 hits the short time I have had the ring. Free of charge of course.
Guess which web site is the most popular? |
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| demogorgon |
looks very good indeed!
good going for someone 16 years old i must say!
(if then the "88" stands for your birth year.. if not, well, still nicely done) |
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| alexw88 |
16! :bigeyes:
I was 16 years old 16 years ago. :cool: |
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| Sandy H. |
I like the layout and thorough job you did with both design and implementation. The pictures and comments are also very helpful. I will use your page as a guide when I am trying to think out the layout of a future project.
Thanks for the post.
Sandy. |
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| peranders |
| quote: | Originally posted by alexw88
16! :bigeyes:
I was 16 years old 16 years ago. :cool: |
You are in my webring now. Welcome! |
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| demogorgon |
| quote: | Originally posted by alexw88
16! :bigeyes:
I was 16 years old 16 years ago. :cool: |
well, it did look a bit to well made and thought out for somone a year younger than me:rolleyes:
nothing negative intended!
and again: very nice vork:D
btw: i see there is no pot meter, wich implies the notion that this is a power amp. a power amp must have a preamp of course, and so i wonder how you went forward to match the impedans of the power amp with the impedans of the pre amp?
my teatcher did tell me a lite about this thing, i dont rememberwhat he calles the circut :headbash: , but i remember he told me just enough for me to have tons of questions about the subject..
so if you could helt me out, i would realy be grateful!
regards
marius |
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| alexw88 |
Thanks for your comments :)
I hope my page can be useful for those who want to build a parallel 3886 amp., I won't call it a GC because it uses more components, which voilate the GC concept. However those "extra" components are added for stability and for eliminating all the RF interference.
| quote: | Originally posted by peranders
You are in my webring now. Welcome! |
Thanks, your webring is very helpful to all the Gaincloners!
| quote: | Originally posted by demogorgon
btw: i see there is no pot meter, wich implies the notion that this is a power amp. a power amp must have a preamp of course, and so i wonder how you went forward to match the impedans of the power amp with the impedans of the pre amp?
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Yes, it is a power amp, and its input impedence is about 47k, which is set by the resistor before the input of 3886. I think 47k is high enough for any pre-amp.
I am using a passive preamp now, so it is actually my DAC driving the amp. |
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| Scribble |
| Can the schematic on your webpage be modified to accomidate the LM3875 IC? |
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| demogorgon |
| quote: | Originally posted by alexw88
Yes, it is a power amp, and its input impedence is about 47k, which is set by the resistor before the input of 3886. I think 47k is high enough for any pre-amp.
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but when using a fixed resistor of 47k ohms, it's not impedans(Z), it's resistance(R).. Is it the resistor paralelled with a condensator that makes the fixed resistance(R) into impedance (Z)?
I strongly suspect that i should have paid better atension in class..
(Edvard Grieg - Peer Gynt suiten - morgen stemning)
wonderful classical music, really astounding! |
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| alexw88 |
| quote: | Originally posted by Scribble
Can the schematic on your webpage be modified to accomidate the LM3875 IC? |
Yes, it can be. Just ignore the mute and ground pin as the 3875 does not have those.
| quote: | Originally posted by demogorgon
but when using a fixed resistor of 47k ohms, it's not impedans(Z), it's resistance(R).. Is it the resistor paralelled with a condensator that makes the fixed resistance(R) into impedance (Z)?
I strongly suspect that i should have paid better atension in class..
(Edvard Grieg - Peer Gynt suiten - morgen stemning)
wonderful classical music, really astounding! |
Z and R is basically the same thing, with Z is the resistance at a particular frequency.
This link may help you to understand :
http://hyperphysics.phy-astr.gsu.ed...tric/imped.html |
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