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> DIY amp club V2, Post your DIY amp here (DIY)

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TSscotty
post Jan 15 2009, 11:54 AM, updated 11y ago

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continuation from the previous thread.
jazzy939
post Jan 15 2009, 12:57 PM

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A query.
Anyone has used an R-Core transformer?
Just want to know why you use it and where did you get it. Thanx.
ar188
post Jan 15 2009, 07:35 PM

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QUOTE(jazzy939 @ Jan 15 2009, 12:57 PM)
A query.
Anyone has used an R-Core transformer?
Just want to know why you use it and where did you get it. Thanx.
*
salvage it from old R-core Sony CDP.. biggrin.gif

or contact the designer..

http://www.kitamura-kiden.co.jp/english/index.html

This post has been edited by ar188: Jan 15 2009, 07:38 PM
jazzy939
post Jan 15 2009, 08:15 PM

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Thanks for the link. You don't happened to have some loose R-Core in the drawer, no? tongue.gif
ar188
post Jan 15 2009, 08:28 PM

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QUOTE(jazzy939 @ Jan 15 2009, 08:15 PM)
Thanks for the link. You don't happened to have some loose R-Core in the drawer, no? tongue.gif
*
no la.. but I got some baluns and ferrite core transformers tongue.gif
jazzy939
post Jan 15 2009, 08:46 PM

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I'll make a note!
BTW, your blue LEDs, the small ones.. am gonna use it on my VSPS front panel. Definitely will look super cool! wink.gif

QUOTE(ar188 @ Jan 15 2009, 08:28 PM)
no la.. but I got some baluns and ferrite core transformers  tongue.gif
*
ar188
post Jan 16 2009, 12:12 AM

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QUOTE(jazzy939 @ Jan 15 2009, 08:46 PM)
I'll make a note!
BTW, your blue LEDs, the small ones.. am gonna use it on my VSPS front panel. Definitely will look super cool! wink.gif
*
hehe! 3mm with diffused blue lens.. that should look pretty cool.. remember to drive it below 4v (3-3.5).. or else very fast poof..
LittleGhost
post Jan 16 2009, 01:25 PM

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Scotty, what about the old thread? It still contains useful informations for newbies.
jazzy939
post Jan 16 2009, 02:33 PM

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Very true. Can we have it (compiled) like an FAQ or something?


QUOTE(LittleGhost @ Jan 16 2009, 01:25 PM)
Scotty, what about the old thread? It still contains useful informations for newbies.
*
CV6149
post Jan 16 2009, 10:19 PM

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damn right it is!!
the collection of info since thedoctor era....very2 valuable!
MadCow
post Jan 16 2009, 10:39 PM

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Guys, if u dont mind me interrupting.
How do u cut a say 3 inch hole? I use to DIY myself but the outcome aint always nice. I'm thinking of DIYing a SOHA II but I'm having difficulties drilling 2 holes on the top of the casing for the tubes.
jazzy939
post Jan 16 2009, 10:47 PM

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What material are you trying to cut? Steel or aluminium?

QUOTE(MadCow @ Jan 16 2009, 10:39 PM)
Guys, if u dont mind me interrupting.
How do u cut a say 3 inch hole? I use to DIY myself but the outcome aint always nice. I'm thinking of DIYing a SOHA II but I'm having difficulties drilling 2 holes on the top of the casing for the tubes.
*
LittleGhost
post Jan 16 2009, 10:50 PM

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QUOTE(MadCow @ Jan 16 2009, 10:39 PM)
Guys, if u dont mind me interrupting.
How do u cut a say 3 inch hole? I use to DIY myself but the outcome aint always nice. I'm thinking of DIYing a SOHA II but I'm having difficulties drilling 2 holes on the top of the casing for the tubes.
*
A lengthy process, takes bloody much time, but the effort is worth it.

Use masking tape to mask the area you want to drill. Draw a sketch of the circle on it. Proceed by drilling lots of lots of holes using the largest drill bit available exactly within the area to clear it out. File the rest of the tiny bits to get a nice circle. It's time consuming due to the need to drill multiple times.

EDIT: Alternatively, a dremel works with the above method too, except faster.

This post has been edited by LittleGhost: Jan 16 2009, 10:52 PM
ar188
post Jan 16 2009, 10:51 PM

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QUOTE(MadCow @ Jan 16 2009, 10:39 PM)
Guys, if u dont mind me interrupting.
How do u cut a say 3 inch hole? I use to DIY myself but the outcome aint always nice. I'm thinking of DIYing a SOHA II but I'm having difficulties drilling 2 holes on the top of the casing for the tubes.
*
can always "pinjam" some one's milling machine..

anyway there is this special adapter to fit to a drillbit..can cut fairly large (inches) circles on metal plates with a electric drill
jazzy939
post Jan 16 2009, 10:55 PM

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Steel is a little bit harder though... easier on aluminium..
As per LG's process but I'd drill a series of small holes.. about 1/8" max., very close together. Once completed, 'punch' out the inner metal and use 1/2 round or rat tail file to smoothen the hole and adjust dimensions to suit the object going through the aperture wink.gif
ar188
post Jan 16 2009, 11:20 PM

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QUOTE(jazzy939 @ Jan 16 2009, 10:55 PM)
Steel is a little bit harder though... easier on aluminium..
As per LG's process but I'd drill a series of small holes.. about 1/8" max., very close together. Once completed, 'punch' out the inner metal and use 1/2 round or rat tail file to smoothen the hole and adjust dimensions to suit the object going through the aperture wink.gif
*
wei then it'll look very kraftangan effect.. tongue.gif
jazzy939
post Jan 16 2009, 11:33 PM

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Off course la! Thats what DIY is all about! wink.gif
You've seen my 'kraftangan what... biggrin.gif

QUOTE(ar188 @ Jan 16 2009, 11:20 PM)
wei then it'll look very kraftangan effect.. tongue.gif
*
MadCow
post Jan 17 2009, 12:00 AM

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QUOTE(LittleGhost @ Jan 16 2009, 10:50 PM)
A lengthy process, takes bloody much time, but the effort is worth it.

Use masking tape to mask the area you want to drill. Draw a sketch of the circle on it. Proceed by drilling lots of lots of holes using the largest drill bit available exactly within the area to clear it out. File the rest of the tiny bits to get a nice circle. It's time consuming due to the need to drill multiple times.

EDIT: Alternatively, a dremel works with the above method too, except faster.
*
That's what I've been doing but the hole aint always beautiful. Since the 2 holes for SOHA II is not hidden, i want it to be as smooth as possible. Any companies in Msia that does this sort of cutting? =)
ar188
post Jan 17 2009, 12:05 AM

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QUOTE(MadCow @ Jan 17 2009, 12:00 AM)
That's what I've been doing but the hole aint always beautiful. Since the 2 holes for SOHA II is not hidden, i want it to be as smooth as possible. Any companies in Msia that does this sort of cutting? =)
*
plenty..but need to pay or maybe they won't want to do one off basic jobs..

MadCow
post Jan 17 2009, 12:07 AM

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QUOTE(ar188 @ Jan 17 2009, 12:05 AM)
plenty..but need to pay or maybe they won't want to do one off basic jobs..
*
Icic, i guess i'll just stick to the conventional style. =)

Anyway, anybody DIYing any new amps at the moment? mind sharing?

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