Let's build Krmathis a Beta22!
Jul 14, 2008 at 10:19 AM Thread Starter Post #1 of 590

amphead

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[size=large]Let's Build krmathis a Beta22![/size]



So, what is this thread about. Let's show how powerful the DIY community is here on Head-fi. This would be a first, on Head-fi but need not be the last time. Why, Krmathis? Why not. If he is interested, then we would contribute either fabrication time, parts, or shipping funds. Does he know about it? Not until now. I have volunteered to build one full amplifier, labour only. Anyone else in? Instead of a group buy, this would be a group build. Imagine how much fun as we give our details of the build on this thread! Remember, this is pro bono. If you can only provide moral support, then Thank You too!

Update: The decision has been made that this will be a 4-channel balanced build.

Donate to the Krmathis group build here-->
β22 Group-build Project

Parts Spreadsheet -->
http://spreadsheets.google.com/ccc?k...DdyDHucg&hl=en

Parts Donated/Received List:
Transformer - quantity (1)
Capacitor set for amplifier board - quantity (2)
PCB standoffs partial set - quantity (1)
Nuts and bolts partial set - quantity (1)
Heatshrink tubing set - quantity (1)
24AWG silver plated copper wire partial set - quantity (1)
26AWG silver plated copper wire partial set - quantity (1)
1/4 nylon multifilament partial set - quantity (1)
1/8 nylon multifilament partial set - quantity (1)
Transformer +15/+15 50VA dual primary toroidal - quantity (1)
IEC module w/fuse, power switch and AC filter - quantity (1)
e24 complete set - quantity (1)
q24 complete set - quantity (1)
Goldpoint K1.4-S-SH knob - quantity (1)
Blue Led - quantity (6)
Par-Metal case FPE panel set - quantitiy (1)
I/O board partial (need balanced Joshua Tree) - quantity (1)
Neutrik XLRs - quantity (4)
4-gang 23-step Stepped Attenuator - quantity (1)


5 Star Donors List:
04BluMach
aaron313
Afrikane
Akabeth
amb
amphead
Beefy
Blutarsky
cAsE sEnSiTiVe
Cool_Torpedo
dBel84
digger945
DoubleEs
error401
fatcat28037
fordgtlover
gates_2
GeWa
gz76
HeadphoneAddict
Headroom
JamesL
Jrossel
Jude
Lynxkcg
malldian
mark_h
MASantos
MisterX
MrMajestic2
mwofsi
n_maher
naamanf
NJ Head-Fi Meet
NoPants
nor_spoon
omegaman
pabbi1
penger
Ricey20
rockcod
ruZZ.il
samgotit
scompton
synaesthetic
tomb
torjeh
Uncle Erik
VeipaCray
Voltron
wavoman
wnmnkh
 
Jul 14, 2008 at 10:59 AM Post #3 of 590

nor_spoon

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What a fabolous idea!! Very generous. Unfortunately, I have never touched a solder iron, but since I live only about 2 hours drive from Krmathis, I will happily volunteer for both moral and listening support
biggrin.gif

Also, I would be happy to contribute to the parts funding.
 
Jul 14, 2008 at 11:12 AM Post #4 of 590

krmathis

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Wow, now I am getting a bit humbled! :blush:
I really love this community (as you probably have guessed), and if this goes through I will be forever grateful.

I have had my eyes on the B22 for months, as it seems like a really nice and versatile amplifier. I even contacted 'naamanf' about the possibility to get him to build me one. Which he sadly would not be able to...
...and now this.
smily_headphones1.gif
 
Jul 14, 2008 at 12:01 PM Post #5 of 590

amphead

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The creator of the Beta22, has generously volunteered to provide us with technical support. He did not know about this thread until just now.
 
Jul 14, 2008 at 12:11 PM Post #6 of 590

amb

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I will offer guidance, support, and if needed, hands-on debug and testing to make sure that this build will be as good as it could be. I don't know how the logistics would work out, but if any builders would be in the San Francisco Bay Area then we could have a solder-slinging mini-meet!
 
Jul 14, 2008 at 1:55 PM Post #9 of 590

error401

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Quote:

Originally Posted by Beefy /img/forum/go_quote.gif
Interesting concept
eek.gif


I'll happily PayPal a few bucks towards parts if a 'fund' is set up......



Hmm, perhaps someone needs to get a BOM and budget together so we have a target?

Edit: I'd be willing to coordinate and put this together on Google Docs or such, if it's deemed a good idea.
 
Jul 14, 2008 at 4:14 PM Post #11 of 590

MrMajestic2

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I know I have the capacitors for 2 boards lying around that Ill be willing to donate. I can also help out designing custom panels and maybe partially fund them as well. Since he is in europe I think Hifi2000 case/s are a wise choice. Im guessing we are talking about a balanced B22?
 
Jul 14, 2008 at 4:16 PM Post #12 of 590

VeipaCray

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Is there a Paypal account we can donate to? I don't have any experience building and I don't have any parts to donate... but I can donate some funds. I enjoy Krmathis' posts and would like to learn from the group build thread.
 
Jul 14, 2008 at 4:43 PM Post #13 of 590

G-man

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hmm, i know nothing about diy, but i will be there for support. I shall sacrifice a pair of ibuds for this project (my excuse to burn them and see what happens
tongue.gif
)
 
Jul 14, 2008 at 8:43 PM Post #14 of 590

Postal_Blue

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My funds are pretty well tied up in a SOHA II proto-build, but I would be more than happy to donate some bench time.

This is truly a beautiful Idea. I hope it is successful and the first of many such community efforts.
 

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