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Jun 17, 2003 at 10:01 PM Thread Starter Post #1 of 27
Rodelius

Rodelius

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By popular demand, I'm posting some pics of my recently finished amp based on Tangent's Meta42 board.
Yes, I'll change the enclosure soon. This one sucks.

meta1.jpg


meta2.jpg


meta3.jpg


See my previous post for even more details and a view of the beast closed

Please be benevolent as this is my very first serious DIY project.

Thanks again to everybody, I know I've made a lot of questions.

Rodelius
 
Jun 18, 2003 at 6:37 AM Post #5 of 27
I wish I could do something like that. I once made a McCloude (i think it was called), that souded like a police car from the 60'
biggrin.gif

How big is that thin in real lige. Could you take a pic of that next to a quater or something ? Please.
 
Jun 18, 2003 at 5:57 PM Post #8 of 27
Nicely done, Rodelius.

I think you're only the third person who has posted pics of a META42 that uses one of the inner sets of pot pads over on the right side of the board. One was ppl, who has a local source for Bourns 51 series pots. I seem to recall one other, where they used one of the small 9mm ALPS pots. Let us know what you think about that pot, okay?
 
Jun 19, 2003 at 7:40 AM Post #9 of 27
Quote:

Let us know what you think about that pot, okay?


Tangent,
Considering its size and its price (about 3 euro) this pot is very good. Soft, smooth and precise. RS part number is 249-9165. Putting aside the longuish screwed part, the only problem of using this pot is the pin width, which is a little big for the holes for Bourns 51 series on the Meta board. I had to polish the pins a little to be able to insert the pot in the pcb.

This weekend I am going to build my second amp, which will include a PSU, and will use the ALPS Blue Velvet, which feels very promising.

By the way, everybody at my company wants a headphone amp like mine!

Regards,
Rodelius
 
Nov 22, 2003 at 9:28 AM Post #14 of 27
If it's not an imposition would you list the parts you used, where you got them and how much they cost?

I'm thinking of skipping the CMOY and heading straight for the PIMETA. Yours looks outstanding.
 
Nov 22, 2003 at 2:00 PM Post #15 of 27
Most of the parts I've used are the ones recommended at Tangent's site.
The only thing I changed for my battery powered amp was the pot. Later, I built another amp (see pic) with a PSU and used the ALPS Blue Velvet, which I ordered from Tangent's. Total cost for parts for each amp was about 100 bucks including the case, but not the tools, which I already had.

metapsu.jpg


I ordered the the ICs and some caps from Tangent, who offers top-notch service and fair prices. As I live in Spain, I ordered the resistors, buffers, the rest of caps, the pot and the RCAs at RS Components, but if you live in the USA, DigiKey, Newark or Mouser could be a better and cheaper option.
At Tangent's you can even find part numbers for most of the components.

If you want me to post resistor values, you will miss the opportunity to learn how to configure the Meta42 (or Pimeta) for your particular needs. It's not that difficult... My advice is to build your amp putting the resistors on IC sockets. This way you will be able to change Op-Amps and find the one that better suits your taste and cans.

Read all the info at Tangent's. Not only you will find what parts you need, you will learn how the amp works as well...

I am curious... This is an old post with a funny subject. Why did you choose this one to post your questions?

Regards,
Rodelius
 
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