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Hey all, hope you'll welcome a newbie from up north! - Click HERE for Original Thread
hieroglyphics
Hey hey! Its nice to see a forum dedicated to in-depth understanding of audio electronics and amplification! I first started the hobby about 5 years ago when I bought my first car audio head unit. Since then, my appreciation and excitement about the hobby has increased to the point where I'm now in 3rd year Electrical Engineering! After spending oodles of money for signal processing and amplifiers, I figure I could probably design my own for 1/2 the price and twice the performance, let alone gain the confidence and pride of saying "I made that" :)
Anyway, I hope to meet you all and share designs and knowledge about the hobby (obsession)!
pinkmouse
Hi hieroglyphics, and welcome to the forums:)
quote:
Definitive Jux is number 1
???? Is this some of that Youth slang, so popular amongst young people these days?;)
SimontY
Hi 'glyphics, I just joined this place too - it's amazing - the range of people and knowledge. Only looked at diyaudio for the first time yesterday really, and I've been browsing and reading for hours - even about things that are totally irrelevant to my system!

I also have become interested in amps, but I don't really have any electronics knowledge :( I'm starting at the bottom and hopefully today, I am going to solder in 4 additional 10,000uf caps into my sub amp, that'll show it, hehe. :nod:

I must be careful though, my CD player is already in for repair, it broke the day after replacing two caps...

It's just so addictive tho eh?

-Simon
JOE DIRT®
welcome Lad...great members here for support


Cheers!!The DIRT®
elizard
Well, here's a hello from another 'pegger :)
hieroglyphics
Hey pinkmouse, I would actually reword "youth slang" with "exclusive youth slang". I'm sorry to say but I doubt I'll find anyone on this board who will know what I'm talking about.
Definitive Jux is an underground hiphop label devoted to making some of the most innovative sounding, progressive, and surprisingly intellectual lyricism that is not normally associated with "rap". This label has brought hiphop to the point where it is a very spiritual experience whenever I listen to some of their songs. The emotion that some of the emcees can evoke in the listener far surpasses any other hiphop group from being even close in competition.
Many people will be able to associate "music you can FEEL" with Pink Floyd and the like. For me, it is Definitive Jux. Hiphop to a new level.

Thanks Joe and elizard, CHEERS!
Hey lizard, have you done any projects since you started off here? I was wondering if you know of a place where I could scavenge used components. I'd rather not buy one package of everything at Active Electronics :clown:
hieroglyphics
Oh yeah, I don't know how many of you keep up with modern electronic music, but there are some excellent artists out there right now. I'm 23 so I haven't really grown out of this type of music but I really find it hard to pull myself away from what I've been listening to for years. And it isn't as if what I listen to is shallow pop music either.

Okay, onto explaining that avatar (picture under my name). Aphex Twin (modern electronic music artist) recently recorded a song in which he created that face in the spectrograph. I believe it was something like a 2-5 second blurb and someone found it by accident when plotting the graph.
planet10
Welcome to diyAuio...

i just don't know if Winterpeg :) qualifies for North... now if you were from Churchill...

dave
hieroglyphics
True, true. I'd never want to live in Churchill :dead:
You're lucky you don't have to deal with our continental climate. One day it will be 25 degrees, the next it could be 5 degrees. Everyday is a guess. At least in BC it is relatively constant.

Thanks for the welcome, Dave!
hieroglyphics
quote:
Originally posted by SimontY
Hi 'glyphics, I just joined this place too - it's amazing - the range of people and knowledge. Only looked at diyaudio for the first time yesterday really, and I've been browsing and reading for hours - even about things that are totally irrelevant to my system!

I also have become interested in amps, but I don't really have any electronics knowledge :( I'm starting at the bottom and hopefully today, I am going to solder in 4 additional 10,000uf caps into my sub amp, that'll show it, hehe. :nod:

I must be careful though, my CD player is already in for repair, it broke the day after replacing two caps...

It's just so addictive tho eh?

-Simon

Hey Simon, thanks for the welcome!
What was your original power supply capacitance? You may or may not notice any changes in your bass response (I assume thats what you're trying to improve).
elizard
lol .. winterpeg is north enough :)

hiero: apex twin is awesome :)
i actually managed to reproduce that image w/ a winamp plugin .. quite cool :)

as far as used electronics go .. no clue
next saturday i'm gonna check out a flea market i've heard about on Lagimodiere ..
I was thinking of visiting garage sales and/or pawn shops ..

i got lucky and scored 2 old PA amps .. well "lucky" .. not THAT Much salvageable from them :)

also i'm getting an hp power supply .. might gut that too :)

let me know if you find a good "used" electronics store (parts) .. i'd be very interested
also i'm going to be the first to recommend digikey .. shipping on most parts is negligible, as they charge $8 (no handling on orders over like $32) .. they offer a free catalog, AND the customs is included in the price so no nasty surprises :)

also parts connexion and plitron are good too for online stores :)

btw .. if you're in need of a 200VA 2x18V toroid, there's a guy in winnipeg that's got one for sale :)

also i'm 20 .. i thought i was like 1/2 the age of everyone here
i guess not .. good stuff

also i built (well am finishing building) a gainclone
next project a 1-1.5 watta SE tube amp .. and then Aleph 5 :)
elizard
PS: what other sort of music do you enjoy?

i myself enjoy Goa/psytrance ..
of course, i live for classic rock, but goa/psy i enjoy quite a bit as well :)
planet10
quote:
Originally posted by hieroglyphics
You're lucky you don't have to deal with our continental climate. One day it will be 25 degrees, the next it could be 5 degrees.

I do know that ... i grew up in central Alberta, and went to Uni in Edmonton.

dave
elizard
quote:
Originally posted by hieroglyphics
True, true. I'd never want to live in Churchill :dead:
You're lucky you don't have to deal with our continental climate. One day it will be 25 degrees, the next it could be 5 degrees. Everyday is a guess. At least in BC it is relatively constant.

Thanks for the welcome, Dave!


to strenghten his point ..
there's a low of -1 today (tonight actually) and a high of +19 tomorrow ..
+22/23/24 over the next few days after
planet10
quote:
Originally posted by elizard
there's a low of -1 .... +24

Except for the odd day, that is the typical annual spread here.

dave
hieroglyphics
-1 to +24 ??!! I wish we had that small of a variety.
I could say without exaggeration that our spread is -35 to +35 (and sometimes lower than -35 with windchill).
I may not be comfortable with the climate but I sure am with our property value! One of the cheapest places to live in Canada.

Eliz, how much is that toroid? I have to start somewhere, might as well make a power supply!

Lets see, what other than hiphop do I listen to..... hmmmm..... ummm...
Well, I do listen to other music, but I'd have to say a wide variety of everything. Artists that have just popped into my head are Weezer, Pink Floyd, Portishead, Massive Attack, Herbie Hancock, and Herbaliser. There are many more but I have a signals midterm tomorrow to study for.
Circlotron
quote:
Originally posted by hieroglyphics
Definitive Jux is an underground hiphop label devoted to making some of the most innovative sounding, progressive, and surprisingly intellectual lyricism that is not normally associated with "rap".
I usually describe rap music as "complaining to a beat." :dead:
hieroglyphics
quote:
Originally posted by Circlotron

I usually describe rap music as "complaining to a beat." :dead:


Then you have only seen/heard what television or radio has to offer ;)
planet10
quote:
Originally posted by hieroglyphics
[B]-1 to +24 ??!! I wish we had that small of a variety.
I could say without exaggeration that our spread is -35 to +35 (and sometimes lower than -35 with windchill).

That's all... in Alberta i definetly suffered greater extremes... as low as -45 with wind chill to -120 F. As hot as 120 F (we lived in Farenheiht back in those days)

dave
leadbelly
quote:
That's all... in Alberta i definetly suffered greater extremes... as low as -45 with wind chill to -120 F. As hot as 120 F (we lived in Farenheiht back in those days)
It's often said "if you don't like the weather in Calgary, wait 5 minutes..."

bring a jacket & sunblock EVERYWHERE
SimontY
Hieroglyphics, the caps in the amp were 4x4,700uf so 18,000uf total. Will take it to 58,000uf, which I hope to notice - not got 'em yet though, still waiting for a lift to the place :bawling:

I just bought the Richard D James album by Aphex Twin, which is rather nice - one or two bits in there go <50hz for the sub ;)

I'm 22 years old btw Lizard, a few young 'uns here :)
elizard
"elizard,

I have a 225 va, 18v secondaries Plitron transformer sitting here, waiting to be used. I'm got too much on the go right now. I paid $35 USD for it plus shipping from Vancouver (about half the cost of direct from Plitron). If you are interested let me know offline and we can arrange to meet. I'd like to have a listen to the finished amp though :-))

Steve."

his name on here is spind
contact him .. i think he still has the transformer :)
planet10
quote:
Originally posted by elizard
I have a 225 va, 18v secondaries Plitron transformer.... his name on here is spind
contact him .. i think he still has the transformer :)

Small world... spind got those from me. It is what i'm going to use for mine when i get around to it.

dave
elizard
lol it is a small world :)
hieroglyphics
Simon, I'd suggest listening to a few songs with heavy articulated bass right before you replace your caps. Try to memorize how it sounds and then begin to replace them. If they have a significant effect, let me know!

Eliz, thanks for the referral! I'll try contacting him.
SimontY
Hieroglyphics, I did the caps yesterday, I just tried to memorise all the stuff I'd heard recently including 'Ministry of Sound - Old Skool Club Classics' :-) That has some very powerful and rich basslines.

I tested with one cap in, it worked, but I didn't properly listen, I wanted to get the others all done first.... which I did. I carefully checked for polarity so as not to explode the beasties, and powered up to considerable disapointment - it no longer works!!!

The caps presumably work - the power light takes MUCH longer to go out, when you unplug the power. Also, you can hear some residual amp noise through the driver, which changes as you change the volume, phase, x-over etc. However, the hi-level input isn't getting through, at all, it's very annoying.

This is exactly what happened a few days ago when I added some tiny film caps to the originals - except it worked the day after, when I re-assembled it and put it back in the box. No such joy now, and I've checked all PCB connectors and they all seem correct, and nothing seems to be shorting. It's as if some link to the hi-level is broken, or a chip is dead or something, but I just don't know.

Can anyone suggest any possibilities please?

I can attach photos of it all if that helps - I'm desperate now - and it looks kinda cool :-)

-Simon :bawling:

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