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Zozobra
Henry Kissinger
Joined: Tue Jul 13, 2010 7:00 am Posts: 1105
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Re: Going to source all my parts, general guidelines?
I wish I could get all these exotic transformers over here
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Thu Nov 11, 2010 10:55 am |
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Zozobra
Henry Kissinger
Joined: Tue Jul 13, 2010 7:00 am Posts: 1105
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Re: Going to source all my parts, general guidelines?
Those edcor OT's look interesting and they're a good price. I've emailed them about shipping to the UK as I really want to do a 2 KT88 amp and this looks promising, especially at $93: http://www.edcorusa.com/products/458-cx ... -4_2k.aspx100W, 4.2K primary which probably isnt too far off the mark for a B+ of 540V and 2xKT88 although I need to read up on how to work this out. Only real option I have here is the hammond hi-fi OT (1650NA) which is 4.3K and will run me £90 which is quite a mark up on $93! /derail....
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Thu Nov 11, 2010 11:26 am |
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Zozobra
Henry Kissinger
Joined: Tue Jul 13, 2010 7:00 am Posts: 1105
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Re: Going to source all my parts, general guidelines?
http://www.edcorusa.com/products/675-xpwr078_240.aspxthat PT looks pretty hot too. If the pair shipped runs for $220 or so then thats a winner since I'd be paying ~£100 for a similarly specced PT (500mA and slightly higher B+ but whatever)
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Thu Nov 11, 2010 11:43 am |
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GnarlySheen
Jeremiah Johnson
Joined: Tue Jun 22, 2010 9:28 pm Posts: 5025 Location: Obama
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Re: Going to source all my parts, general guidelines?
JESUS FUCK
_________________ Member of the DILDO Water Gentlemen's League Of DILDOS
Indeed
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Thu Nov 11, 2010 4:11 pm |
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knope
The guy from the place with the thing. The one with the stuff.
Joined: Thu Jul 08, 2010 8:37 pm Posts: 1400
Yes/No: No
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Re: Going to source all my parts, general guidelines?
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Tue Jan 11, 2011 8:16 pm |
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chris_d
Winston Wolf
Joined: Wed Jun 16, 2010 7:32 pm Posts: 11362 Location: ruining everything.
Yes/No: No
Less/More: More
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Re: Going to source all my parts, general guidelines?
Awsum.
_________________ STOP FIXING ROCK RECORDS.
START YOUR OWN RELIGION TODAY.
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Tue Jan 11, 2011 8:31 pm |
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Zozobra
Henry Kissinger
Joined: Tue Jul 13, 2010 7:00 am Posts: 1105
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Re: Going to source all my parts, general guidelines?
Deeply erotic. edcor have some great stuff but fuck their shipping costs. same goes for triode electronics. i dont give a flying dickhole how long it takes to arrive, i just dont want to pay the same for shipping as the trannys cost
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Tue Jan 11, 2011 9:04 pm |
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Zozobra
Henry Kissinger
Joined: Tue Jul 13, 2010 7:00 am Posts: 1105
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Re: Going to source all my parts, general guidelines?
also
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Tue Jan 11, 2011 9:05 pm |
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knope
The guy from the place with the thing. The one with the stuff.
Joined: Thu Jul 08, 2010 8:37 pm Posts: 1400
Yes/No: No
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Re: Going to source all my parts, general guidelines?
Got my trannys today but the PT isn't the one I ordered... Was sent the HTS-5199 http://www.rjguitars.net/Transformers.htmlSpecs: 300-260-0-260-300 @ 300ma 6.3 @ 7.5A 5 @ 3 A Should I send it back or use it anyway? If I go lower(compared to 280v that I wanted) I get a more crunchy sound right? Going higher gives me more headroom? (I think I read this on a forum somewhere)
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Sat Jan 15, 2011 1:05 pm |
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chris_d
Winston Wolf
Joined: Wed Jun 16, 2010 7:32 pm Posts: 11362 Location: ruining everything.
Yes/No: No
Less/More: More
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Re: Going to source all my parts, general guidelines?
So you ordered the HTS-9144?
You know, either one is probably going to be fine. But the one he sent might actually work out better for you.
In fact, because the amp is so high gain, you may want to use the 300v taps to get a little more headroom. I just realized actually, that the Hotcat schematic actually shows 321v there(don't know how i missed that before). Now that is probably just what was measured by the person who made the schematic, so doesn't necessarily show what the transformer actually is(it could indicate anything from about 260v winding to a 330v, depending on common US wall voltages). But, it is at least close.
So the 300v taps are probably going to be good for your build. In a high gain amp like this, you are going to want a little more headroom in the power section so that it stays slightly clearer. Too little voltage there and the amp might get too muddy when you go with lots of distortion and turn the amp up.
I would probably tape off the ends of the 260v taps so they can't touch each other or anything else, then just wind them up and zip tie them tucked away into a corner of the chassis for possible future use. And then i would just use the 300v taps for the build.
_________________ STOP FIXING ROCK RECORDS.
START YOUR OWN RELIGION TODAY.
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Sat Jan 15, 2011 2:18 pm |
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knope
The guy from the place with the thing. The one with the stuff.
Joined: Thu Jul 08, 2010 8:37 pm Posts: 1400
Yes/No: No
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Re: Going to source all my parts, general guidelines?
HA! so i was right that the having a little more voltage would give me a bit more headroom anything you want to add to this (post on mapz lead dress)? http://forum.metroamp.com/viewtopic.php?f=28&t=29190
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Sat Jan 15, 2011 2:30 pm |
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chris_d
Winston Wolf
Joined: Wed Jun 16, 2010 7:32 pm Posts: 11362 Location: ruining everything.
Yes/No: No
Less/More: More
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Re: Going to source all my parts, general guidelines?
Not that comes to mind at the moment. That is a good post. Also, i haven't lurked there for a while, but that is a great forum. Lots of doods there who know their shit.
_________________ STOP FIXING ROCK RECORDS.
START YOUR OWN RELIGION TODAY.
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Sat Jan 15, 2011 2:49 pm |
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