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Tube-I-zator V3.1 Stock Status

Posted 11th January 2016 at 11:48 AM by dvb projekt

Dear diyaudio friends,

the last batch of the Tube-I-zator V3.1 is sold.

A new batch will be ordered, if i have 20+ pre orders.

All who want to order, please add yourself to the pre order list in the thread.


Best regards,
Oliver

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Rating: 2 votes, 4.50 average.

The new Tube-I-zator V3.1

Posted 16th September 2013 at 06:28 PM by dvb projekt
Updated 31st January 2016 at 11:16 AM by dvb projekt (Stock status update)

The new Tube-I-zator V3.1

Click the image to open in full size.

The evolution brings the following changes:

- Anode PSU with Salas SSHV Shunt Reg. onboard
- External B+ Input for usage with other Anode PSU
- Heater PSU with C-R-C filtering
- Heater PSU with Softstart circuit
- Heater PSU Power LED

- Design failures corrected

Thanks to John (-ecdesigns-) for the following suggestions!

- Grid stoppers to prevent unwanted oscillations
- Bias current injection for TDA1541A usage
- Pull-down resistors to keep the coupling cap output at GND-potential

Still on the Module:

- Heater switch for 6N2P or 12AX7 usage



An example for a balanced use (e.g. Bufalo II), you could see HERE.



The PCB has the following data:

Material: FR4 - 2mm
...
Attached Files
File Type: zip Tube-I-zator V3.1 - BOM.xls.zip (7.3 KB, 11 views)
File Type: pdf Tube-I-zator V3.1.pdf (835.7 KB, 1016 views)
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Old

The new Red Baron DAC Module V5.0

Posted 19th June 2013 at 11:30 AM by dvb projekt
Updated 17th January 2016 at 01:06 PM by dvb projekt (Stock status updated)

The new Red Baron
V5.0


Click the image to open in full size.


The evolution brings the following changes

- Jumper for I2S / simultaneous mode
- latest 3.3V attenuator for I2S & simultaneous mode (by -ecdesigns-)
- free running DEM oscillator (by -ecdesigns-)
- additional U.FL pads for I2S & simultaneous mode
- Separate U.FL-GND route to Digital-GND


Still on the module

- Separate I2S-GND route to Digital-GND
- Separate Analog Output GND route
- Separate GND route for active divider decoupling caps to Analog-GND
- Modified active divider decoupling pads for better SMD 1210 caps soldering
- Un-interrupted ground plane
- Direct shunt voltage inputs with shortest onboard traces
- I2S In-/Outputs with shortest onboard traces
- Onboard Grounded-Gate MOSFET Current Buffer I/V Stage
...
Attached Files
File Type: pdf Red Baron V5.0.pdf (29.7 KB, 1330 views)
File Type: zip TDA1541A Project - BOM - for The Red Baron V5.xls.zip (9.2 KB, 742 views)
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Personal announcement

Posted 26th March 2013 at 06:24 PM by dvb projekt
Updated 26th March 2013 at 06:27 PM by dvb projekt

Well my friends it is time again to say thanks to all of you, who like and ordered my pcbs.

Because i am no developer of electronic circuits but have the knowledge to design pcbs,
i wanted to give something back to the community.

Since i started with my 1st pcb, the Optical-Volume-Control on 15th October 2009,
a small donation from every sold pcb goes to diyaudio.com

Today i am proud to say that your cumulated donation achieve

$ 3104

Keep on having fun with my pcbs and best regards

Oliver
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Rating: 2 votes, 5.00 average.

Reference TDA1541A DAC Power Modules

Posted 7th April 2011 at 02:01 PM by dvb projekt
Updated 17th January 2016 at 12:38 PM by dvb projekt (Stock status updated)

+/- Power Supply Module

Click the image to open in full size.


- up to 15 caps per rail (16mm to 18mm diameter)
- place for decoupling foil cap in each rail
- place for bleeder resistor
- 105m copper weight
- 2mm pcb
- Immersion Gold
- green soldermask on both side
- Board size 195mm x 120mm

In stock



Shunt regulator modules
circuit design by Salas



Click the image to open in full size.

- Shunt regulator module for TDA1541A (+5V, -5V, -15V)
- separate Shunt regulator module for additional parts (+5V)
- 70m copper weight
- 2mm pcb
- Immersion Gold
- green soldermask on both side
- Board size 147mm x 115mm (46mm x 115mm; single +5V)

TDA1541A shunt module not in stock

+5V
...
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