Tube-I-zator Professional PCB

Salas · 2011-01-06 12:13 am

The R-Core is a speciality transformer. If they don't know how to make it its going to be problematic even if having the best intentions. I would ask for a refund in your shoes. I remember back when we were banging our heads here why your reg could not work when all others were working, it certainly gave you hassle. Buy such stuff only from trafo sources that a prototype had successfully worked with it first. Also pay attention to the wiring when there are multiple secondary taps.

dvb projekt · 2011-01-06 6:17 am

Salas said:
The R-Core is a speciality transformer. If they don't know how to make it its going to be problematic even if having the best intentions. I would ask for a refund in your shoes. I remember back when we were banging our heads here why your reg could not work when all others were working, it certainly gave you hassle. Buy such stuff only from trafo sources that a prototype had successfully worked with it first. Also pay attention to the wiring when there are multiple secondary taps.

What a bullsh..

X2 about the refund!

Salas, please do me a big favor and cancel my post #46. I don´t want that another member get´s this problems!

headrott · 2011-01-06 7:22 am

It may have been a bad transformer, maybe? I read many Ebay feedbacks for DIY-GOODS and they were almost always positive saying he sells quality stuff. Either the R-cores are cheap but most is good or possibly you got a bad transformer.

Greg

Tfan69 · 2011-01-06 9:52 am

no, because i've set up 2 dacs with the the r-core, and both gave me problems... so reliability is not on their side

Salas · 2011-01-06 11:53 am

dvb-projekt said:
What a bullsh.. X2 about the refund!

Salas, please do me a big favor and cancel my post #46. I don´t want that another member get´s this problems!

Removed.

dvb projekt · 2011-01-08 8:00 am

The new Tube-I-zator V2.0

After two months of designing, sample production and testing,
may i introduce:

The new Tube-I-zator V2.0

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

The evolution brings the following changes:

- Heater Switch without any relays
- Low ESR Heater PSU (e.g. Panasonic FM)
- Star Grounding
- Mounting holes for the HV-Salas Shunt Module
- Compacter design

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

The PCB has the following data:

Material: FR4 - 2mm
Layers: 2
Board size: 193x157 mm
Surface finish: Immersion Gold
Copper weight: 70µm
Soldermask: Both sides - green
Silkscreen: Legend on top

Tube-I-zator V2.0 BOM

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

The price will be as followed:

Professional 2-Layer PCB: $30
Worldwide shipping: $ 9
Europe shipping: $ 5
paypal fee: 3,9%

A donation of $3 USD to diyAudio will be done for every pcb sold.

Best regards to the community,
:wave:

Oliver

dvb projekt · 2011-01-08 8:04 am

Here a few photos of the ready build V2.0

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

headrott · 2011-01-09 3:38 am

I could use some help in laying out the components for my DAC. I have come up with some component layouts, but if you can think of some that I have not please list them here. I hope this is OK for me to do Oliver. I could use everyones' help. Sorry for the horrible photo, it's from my iphone. Thank you very much.

Greg

P.S. The tubizator V.2 looks fantastic Oliver! Wish I had them.

dvb projekt · 2011-01-09 12:11 pm

headrott said:
I could use some help in laying out the components for my DAC. I have come up with some component layouts, but if you can think of some that I have not please list them here. I hope this is OK for me to do Oliver. I could use everyones' help. Sorry for the horrible photo, it's from my iphone. Thank you very much.

Greg

P.S. The tubizator V.2 looks fantastic Oliver! Wish I had them.

Hi Greg,

looks pretty good! :nod:

Please try to keep the HV-Shunt wires as short as possible.
Therefore the HV-Shunt for the Tube-I-zator #1 must go to the upper side.
BTW, is see that you had both 2nd caps in the HV-PSU installed. You need only one
complete C-R-C strack to the HV-Shunt module!

grubyhalo · 2011-01-09 12:48 pm

Is that a balanced version?

dvb projekt · 2011-01-09 5:10 pm

Yes, Greg build the Buffalo-II with two Tube-I-zator and XLS & RCA outputs.

headrott · 2011-01-09 9:44 pm

dvb-projekt said:
Hi Greg,

looks pretty good!
Please try to keep the HV-Shunt wires as short as possible.
Therefore the HV-Shunt for the Tube-I-zator #1 must go to the upper side.
BTW, is see that you had both 2nd caps in the HV-PSU installed. You need only one
complete C-R-C strack to the HV-Shunt module!

Thanks Oliver! That was one of the layouts I had as you suggested. I would move the Tubeizator #1 towards the front enough to put the HV Shunt board right behind it rather than in the front as pictured.

As far as both caps in the HV-PSU, I know both were not required, but I had both well before I had the boards, so I installed them both just in case I needed to use the HV-PSU on the tubeizator itself (for whatever reason) in the future. It won't adversly affect the performance of the HV-Shunt or the HV-PSU on the Tubeizator will it?

Greg

dvb projekt · 2011-01-09 9:53 pm

Leave them unconnected as you stated

headrott · 2011-01-09 10:02 pm

dvb-projekt said:
Leave them unconnected as you stated

If I don't have the 1K resistor installed for the these caps, would it matter if the caps are installed? Or is it still better to remove them?

Greg

dvb projekt · 2011-01-10 5:41 am

Let them in place if you don't need them otherwise.

Best,
Oliver

headrott · 2011-01-10 11:48 am

The R-Core transformers?

How about these R-Core transformers I got? The ones from DIY-GOODS on ebay (that Tfan69 had a problem with). Should I try these out and hope they work OK? Or should I get different ones? Anyone else use these transformers and have them work OK? Thanks again.

Greg

dvb projekt · 2011-01-13 6:06 am

The 1st small batch is sold.

The pre-order for the next batch start´s now!

dvb projekt · 2011-01-13 6:08 am

headrott said:
How about these R-Core transformers I got? The ones from DIY-GOODS on ebay (that Tfan69 had a problem with). Should I try these out and hope they work OK? Or should I get different ones? Anyone else use these transformers and have them work OK? Thanks again.

Greg

Greg,

i think you should try the transformers, but look first to the output voltages.
If they are in the recommended range, connect the lines to the modules.

Tfan69 · 2011-01-13 7:35 am

try 'em and check if current is enough to run everything or not

headrott · 2011-01-15 3:49 pm

dvb-projekt said:
Greg,

i think you should try the transformers, but look first to the output voltages.
If they are in the recommended range, connect the lines to the modules.

The voltage of the 9V should be fine for the tube heaters, but I think it'll be high for the anode power input. The transformer says it's rated at (165V, .1A). I plan on putting a higher resistor in place of the 1K though to reduce the voltage going through to the rectifiers. I first need to measure the actual voltage being output to determine what resistor value I need.

Tfan69 said:
try 'em and check if current is enough to run everything or not

That's one question I had, is the heater input on the Tubeizator terminal (9-12V, 2A) is the 2A input a required 2A? Or is that the maximum current allowed? The R-core outputs 1A is the reason I ask. The voltage should be fine though.

Greg

Tube-I-zator Professional PCB

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