Tube-I-zator Professional PCB

[dvb-projekt]

Hi to all,

Because of the big success of the I/V SRPP Tube Stage in my finished 4x TDA1541A DAC,
i am planning a PCB Group Buy for those who want to have a optical and technical perfect solution (minimum pre-order 20 PCB´s).
This PCB is for "I-OUT" DAC´s with unbalanced output.
If you want to use it with a "V-OUT" DAC, you must insert a capacitor between the DAC and the PCB.

I have added my Heater-Switch Circuit to the PCB.
Now everyone is able to change between the Russian (6N1P, 6N2P ect.) and Western (12AX7, ECC83 ect.) pinout, without soldering.

Needed Relais: Panasonic DS4E-S-DC5V (Mouser Part-No.: 769-DS4E-S-DC5V)

The Anode and Heater PSU is included.
There will be the possibility to use an external Anode-PSU, e.g. for upgrading with a Tube rectifier.
Furthermore i made the Audio-Lines extra wide (1,5mm) and choose 70µm copper to get minimal loss.

It will be a 2-Layer Design to seaprate the Audio-Lines (Bottom Layer) from the Electrical-Lines (Top-Layer).

The PCB has the following data:

Material: FR4 - 2mm
Layers: 2
Board size: 192x184 mm
Surface finish: Immersion Gold
Copper weight: 70µm
Soldermask: Both sides - green
Silkscreen: Legend on top


The price will be as followed:

Professional 2-Layer PCB: $32
Worldwide shipping: $ 9
Europe shipping: $ 5
paypal fee: 3,9%

A donation of $5 USD to diyAudio will be done for every pcb sold.


Pre-Orders only at: diyaudiopcb (at) gmx.com


Best regards to the community,

dvb-projekt

New version 2

[dvb-projekt]

Please don´t forget to write your location in the pre-order, because of the shipping costs.

[samoloko]

schematic

I like to order but don't you think that usd 32 Is too high

[Curly Woods]

Originally Posted by samoloko

schematic

I like to order but don't you think that usd 32 Is too high

If you are not willing to pay it, then I guess it is

[dvb-projekt]

Originally Posted by samoloko

schematic

I like to order but don't you think that usd 32 Is too high

Fell free to save $27 plus the $5 donation to diyAudio and make your own PCB.

[gabanyayaya]

do you provide building guides for voltage out and current output dac for this board and some guides for the BOM...?

[samoloko]

would you post schematic

have you tried mu follower

[dvb-projekt]

Originally Posted by gabanyayaya

do you provide building guides for voltage out and current output dac for this board and some guides for the BOM...?

The parts you will need are all standard parts and are depending of the DAC and tubes you will use.

If i should give a recommendation:

Rectifier Diodes: Fairchild Stelth ISL9R460PF2 (Mouser Part-No: 512-ISL9R460PF2)
Resistors: Texas Components TX2575 (Texas Components - Precision Resistor & Microelectronics)
Tubes: Russian 6N2P-ER or the brand new E813CC from TechTube (www.techtubevalves.com)


If you will have additional questions, feel free to send a PM.
I will try my best to share my experiences.

Best regards,
Oliver[/FONT]

[dvb-projekt]

Originally Posted by samoloko

would you post schematic

have you tried mu follower

In my DAC projekt i have made only the SRPP-Stage.


Best,
Oliver

[toufu]

I will be interested in 3 boards. I am in the US. Thanks.