[Polaris111688]

Do it... lol. I've gotta see this.

 

[firefox360]

Quote:

Originally Posted by hoosterw I had been brooding on it for sometime now and finally got the stuff I needed, white shrinking tube. Techflex although only one strand braided, but that is improvement for the next version. For now I am happy. Two hybrid silver High-OFC copper cores, and braided outer also silvered High OFC copper multi strands. And of course the finishing touch WBT next gen 0110 Cu. And now ----> Burn In. And then ----> Enjoy. Rgds Hans

I think that could be one of the most expensive DIY iPod Line-Out cables ever... Now we just need to use the Next Gen Silver instead...

p.s. that cable should be in the DIY cable gallery

 

[Tsappis]

Finished this A47 recently. It's the second amp I've built. Nothing fancy so no inside pics. The only thing to inform is the potentiometer which is an Alps RK18 (never heard?). The two 2134's are fed by 12 batteries located in a different enclosure (not shown). Power is transferred via 4-pin mini-DIN.

I built this to power my 595's but I still prefer my stereo amplifier so I'm planning to sell this one (send a PM if interested, Scandinavia preferred). Next up, Dynalo. Everything is already planned, only the money is needed...

This was my first post but I've been reading Head-Fi for 8 months. It's been a fantastic source of information (but a nasty thing for my wallet).

 

[firefox360]

Quote:

Originally Posted by Tsappis Finished this A47 recently. It's the second amp I've built. Nothing fancy so no inside pics. The only thing to inform is the potentiometer which is an Alps RK18 (never heard?). The two 2134's are fed by 12 batteries located in a different enclosure (not shown). Power is transferred via 4-pin mini-DIN.

Why did you use 2 OPA2134's? Wouldn't 2 OPA134 be same and perhaps suck less power at the same time?

 

[Voodoochile]

The A47 uses an opamp in each stage, so you need either four single channel, or two dual channel op-amps.

That's a very clean-looking case job, Tsappis. Very nice!

Welcome to Head-Fi, and I was going to say sorry about your wallet, but when your first post is in the DIY gallery, you clearly are already on the road to financial ruin.

Thanks for sharing the nice pics.

 

[gaplessophile]

Finished my Cmoy a couple of months ago, I designed the layout with the aim of fitting it into the smallest enclosure I could (a cigar tin) with a 9V battery. It has two circuit boards, one on top of the other. It's a standard cmoy but without the input caps. Opamp is socketed and there's a zener diode for low power LED shutoff.

The paint has got a bit scratched

Edit: The designs for this amp are now at http://www.rohan-amped.net/compactMoy/

 

[firefox360]

Wow! Thats a might fine job you've done there!! How big is the whole thing when its inside the cigar tin? 2 times the size of a 9v or something?

 

[gaplessophile]

Quote:

Originally Posted by firefox360 Wow! Thats a might fine job you've done there!! How big is the whole thing when its inside the cigar tin? 2 times the size of a 9v or something?

Thanks! The cigar tin is a bit less than twice as long as a 9V. The dimensions of the tin are about 3.2" x 1.2" x 0.9". The cigar brand is "Cafe Creme". If anyone's ever interested I'd be happy to share the layout.

 

[thenewguy]

Yes please do!

 

[K2Grey]

That is quite impressive size

Bigger isn't better!

 

[skudmunky]

Wow, very impressive. Now I want to do something like that!

 

[RsConqueror]

Oddly enough, I just finished this build a little less then an hour ago over at Skudmunky's house. (He's the only person I know with a soldering iron).

My very first audio DIY and it works, what shocks me to no end.

There is only one problem with it, I don't have a bloody male-to-male 1/8th inch connector cable anywere in my entire apartment!

So I'd better get out to you-do-it and get some parts soon.

~ Rs

 

[skudmunky]

Yeah, turned out quite well. His entire build is a heck of a lot cleaner than my first. I had a ton of wire mess, chopped up the tin with scissors since I didn't have a dremel, and I still loved it.

 

[gaplessophile]

Nice work, RsConqueror! What sort are those long red caps?

Thanks for all the positive comments about my Cmoy, I will get the layout into a viewable form as soon as I can and post a link to it here.

 

[RsConqueror]

You know, I honeslty I have no idea what those caps are. I was expecting to get a set more like these but ended up with the pair you see in the pictures. Its the same model number and specs from mouser electronics, just twice the size.

But the amp works, so no complaints.