Tube-I-zator Professional PCB

[joemana]

Hi Oliver,

I already received my (the two pins) switch which is not useable for the board. I'll just put a jumper on the board instead of switch. Can you please show the blow up on the switch area showing which via (pad) to connect instead of switch if I'll use tube model 12t7/ecc81. Thanks.

 

[toufu]

Got the boards... Thanks!!

One question, where do you get these connector blocks with 4 pins?

 

[Cobra2]

Me too need source for odd parts...(connector-block, tube-sockets, relays...)

Arhne K

 

[dvb projekt]

You all find the order information for the add. parts in the new BOM-List.

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

If the top and middle pad is short, than you can use a 6N2P (relais in action).

Best regards,
Oliver​

 

[Koifarm]

With a current output dac you always need a I/V conversion. Lampizator use the onboard resistors. The point where he connect his tubestage is behind the I/V resistors. He needs no additional resistors.

Ronny

 

[crobbins5421]

Got the board!

Just wanted to poat a quick note. Recieved the Tube-I-Zator board. Quick turnaround. Awesome....can't wait to get started. Thanks Oliver.

 

[gabanyayaya]

Hi Oliver

Just wondering can the trimmer at the heater circuit to be adjust to produce 12.6V output instead of 6.3V for testing purposes?

 

[dvb projekt]

Hi Oliver

Just wondering can the trimmer at the heater circuit to be adjust to produce 12.6V output instead of 6.3V for testing purposes?

This would be normally no problem, but think about that the Heater-Switch-Circuit is designed to power all 12AX7 / 6N2P and equivalent with 6,3V!

 

[jvmonta]

Has anyone found another transformer source? Hate to pay $25 shipping for a $23 product!

 

[amc184]

Try this site, I bought one from this store and it cost $8.30 shipping to New Zealand.

 

[jvmonta]

Which site is that?

 

[torsken]

PCB received in Oslo yesterday. Thank you very much.

 

[dvb projekt]

Perfect.

Cheers,
Oliver

 

[toufu]

Hi Oliver, this will be my first tube project, can you recommand a type of tube for this circuit and provide the resistor values? Thanks!

 

[dvb projekt]

Sure.

i had an extreme good sound performance with the russian 6N2P-ER.
For this tube use Rk= 200R. R I/V depends on the DAC-Chip you
use and please use a high quality resistor in this position!


Cheers,
Oliver

 

[jvmonta]

Try this site, I bought one from this store and it cost $8.30 shipping to New Zealand.

Thanks!

 

[toufu]

Sure.

i had an extreme good sound performance with the russian 6N2P-ER.
For this tube use Rk= 200R. R I/V depends on the DAC-Chip you
use and please use a high quality resistor in this position!


Cheers,
Oliver

Thanks Oliver, is Rk = 200R for 12AX7 as well?

 

[dvb projekt]

Yes, you could use Rk= 200R also for the 12AX7.

 

[toufu]

Cool, so to switch between the tubes, all we have to do is to flip the switch, right?

 

[dvb projekt]

Absolute correct.