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LordBug

Now these are some sexy DIY speakers!

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I got one of those Oatley kits once, it uses 12v@1a to power two 6J6 minitures.

 

Pretty cool, It's not listed anymore, it was called "ValveSound Pre-Amplifier",

 

It was about 100 bucks, and I used to use it to smooth out the terible pc sound I used to get from a7v mobo onboard sound.

 

Only 2 transistors, and some zeners, but not in the audio circuit.

 

I made a few adjustments, removing the static input volume resistors, and fitted pots in stead. (in/out dual mono)

 

It's cappable of driving HP's as well as being a nice preamp.

 

Next kit I'm saving for is a champ. 5w, fender design, bring your own box and speaker.

 

http://www.evatco.com.au/sonic.htm (Hmm, the price has dropped to $366, good ole US$)

 

$400 from EVATCO out at Rosewood. (that's just west of Ipswich, near Amberley air base)

 

I got plenty of parts from my old experiments, I mean boxes of valves and components, mostly new.

 

It was based on a 6v6 class A, with a mesa-like front end.

 

I love reading about this stuff.

Edited by GlennsPref

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Sorry to hijack the thread GlennsPref, but I have been searching for the Schematics on the Oatley 6J6 preamp kit for years since it disappeared. I have the very same kit that I need the docs for.

 

Would there be any chance that you still have the K055.pdf from the oatley website that had the schematics and docs, or a copy of the paper docs that came with it?

 

I'd be really grateful for any help.

 

Regards,

Anzic.

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I have been searching for the Schematics on the Oatley 6J6 preamp kit for years since it disappeared. I have the very same kit that I need the docs for.

 

Would there be any chance that you still have the K055.pdf from the oatley website that had the schematics and docs, or a copy of the paper docs that came with it?

Yes I do, someplace..., saw them not 2 weeks ago, I'll pm you soon with a way to access the file/s.

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Anzic...

 

I have (2 copies) of 5 pages (a4) , 4 are from Electronics Australia Magazine p70, September 1996, by Peter Phillips

 

One copy is a very bad photo-copy, the other is clearer, but I've written notes on them. Should be OK IMHO.

 

I need to figure out my scanner, never used it, then I'll post the pics up someplage, like megauploads.

 

And pm you when I'm happy with the quallity.

 

I haven't completed my serach for the pdf, But I fear I was very new to computing then and may not be in my archive.

 

Get back to you soon.

 

Regards Glenn

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Anzic, you can find a zip archive of the files

 

Filename: K50-Preamp.zip

File description: K50 Preamp docs, Oatley Electronics 1996

File size: 14.91 MB

here... http://www.megaupload.com/?d=REVU73BA

 

I've included some Valve spec pages.

 

The unpacked archive is 30Mb, contains

 

6j6.pdf

6j618.jpg

6j619.jpg

K50-Preamp-01.pdf (between 4 and 6Mb, for hi res/readability)

K50-Preamp-02.pdf

K50-Preamp-03.pdf

K50-Preamp-04.pdf

K50-Preamp-05.pdf

 

All the Best! Glenn

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Thanks so much Glenn, that is awesome. Exactly what I am looking for. And cheers for the datasheet too. Wow the 6J6 is quite hungry on Anode current isnt it....

 

Is there an 'Awesome Member' button here anywhere??? Really, many many thanks mate. :-)

 

Regards,

Anzic.

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Holy moly!

http://diyaudioprojects.com/Speakers/Seas-Granite-Speakers/

 

Very schmick looking. Makes me all the more keen to attempt a jarrah box :)

They look amazing! But me think they may be a tad heavy. And a tad of an overkill.

 

And also i think that they will be a tad expensive!

 

But besides all that the stone looks soo good with the speakers in them.

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