2x60W/1x120W audio amplifier PCB (LM4780/4732)

[veteran]

PS boards are included. I will also try to order few sets of ELPOD 0.1% and DALE 0.1R/3W/0.5% resistor for this amplifier.

I think that there is enough volunteers I will order boards after this weekend, calculate price and we can start this GB.

 

[Bassterror]

I'll take 6.

And I'm also interested in ICs and resistors, 6x too.

How to pay? EU-transfer OK?

 

[exurbia]

if the buy goes ahead i'll take four boards and IC's resistors would be good as well.

 

[TonyTecson]

i'll take 5 set of boards and parts kits too..

 

[elaar]

Hi,

I'll happily buy 2 boards, IC's and resistors too.

Great stuff!
Andy

 

[mlloyd1]

i could be interested in 2 to 4 boards myself, depending on final pricing.

thx,
mlloyd1

 

[SteveA]

LM4780 boards

Veteran,
I'd like 4 boards as well
SteveA

 

[touchdown]

I'm in for 2 boards and 2 LM4780.

Thanks
touchdown

 

[veteran]

I think that I can keep the 10$ price for one gold plated board.

Today I received information about resistors from Elpod. After this weekend I will know more about DALEs. LM4780 chip - about 10$.

So, few more days and we can start this GB

 

[es44]

Yahoooo
Man i need something serious to do. Have been home 5 months now, and can't go to work at least the next 6 weeks because of some heavy curgery, so this is almost a "lifesaver"

Looking forward to get started.

Lots of greetings from cloudy Denmark.

Ebbe

 

[ex007]

Intrested in 2-3 boards + IC

 

[veteran]

I just ordered PCB's and resistors. They should be ready in 2-3 weeks since now. I should also have more info about DALEs 0.1R today and we can start this GB. We gonna to this Aleph P 1.7 GB style

Two more boards will be available (if somebody will be interested):

Simple preamplifer / buffer / riaa (25 boards):

An externally hosted image should be here but it was not working when we last tested it.

and
USB audio DAC (PCM2702) that I ordered today (limited to 25 boards):

An externally hosted image should be here but it was not working when we last tested it.

 

[veteran]

Documentation:

USB audio DAC schematic
USB audio DAC PCB view

Simple preamplifier schematic

 

[veteran]

Unfortunately there won't 0.1R/3W DALE resistors - they are unavailable. Set of resistors for this amplifier (one board) can look like this:

22.1k/0.1%/0.25W/25ppm/ELPOD x4
1k/0.1%/0.25W/25ppm/ELPOD x4
10k/1%/0.6W/metal film x2
2.7R/1%/0.6W/metal film x2

total cost: 4$

 

[es44]

Count me in for two sets of those too, it's cheaper for me than ordering where i live
I've got some 0R1 7W wirewound, i suppose they are fine.

 

[raidfibre]

Hello folks,
I just wanted to make sure that other people had gotten emails from veteran about the boards being ready, and to send money via moneybookers.com ?

Just making sure, veteran!
Thanks,
Martin

 

[preiter]

I didn't get an email

 

[JAZZ2250]

I didn't get it, too. :-(

 

[raidfibre]

No worries, I didn't mean to "start" anything, he probably just didn't get to everyone yet!

 

[john65b]

I would be interested in two amp boards - and maybe teh chips too...

Thanks