Correct wiring types

[hschaser]

Fantastic, idea.. but i am very new to this and may not have the resources and know how to do point to point although i am very sure pt to pt method is the best.

 

[wicked1]

It's such a simple circuit, you are basically rebuilding the entire thing by moving the tube sockets off the board.

But, to answer your question, I have extended tube sockets by using small brass tubes, that the legs of the socket fit in, and then I solder those tubes to the pads on the PCB (Tubelab's idea). You want to keep them as short as possible. A better idea might be to move the big electrolytic capacitors to the under-side of the PCB. Then you may not have to extend the sockets much, if at all.

For the inputs and outputs, use twisted wires and move them wherever you need. Same w/ the volume. You'll need new panel mount RCA jacks and a panel mount potentiometer for the volume.

So basically, moving the inputs and outputs and volume are not really a big deal.. Just move them.
The tube sockets, though, need to be kept as close to the PCB as possible.

 

[hschaser]

"The tube sockets, though, need to be kept as close to the PCB as possible."

I presume that the tube sockets you mentioned above is referring to the 6N3 tubes only?
And please forgive me for my ignorances and lack of know how, why do the tube socket need to be as close to the PCB as possible? Signal lost and degradation?

Thank you for your prompt advise.

 

[wicked1]

I think long wires when extending tube sockets can pick up noise, or allow the tube to oscillate. I don't really know enough to say more, but there are posts about it if you search.

I would move all the capacitors and other tall components to the bottom of the PCB, and leave the tube sockets on the PCB.

 

[hschaser]

Thanks for the great advise. Will surely take note.

 

[hschaser]

Hi all,

I understand that twisting of cables will help to eliminates hum. For 5670/6n3 pre tubes and 6z4 rectifier tube , which cables should be twisted together? I.e for 6n3 pin 1-9 and 6z4 pin 1-7. Which cables should be twisted together?

 

[hschaser]

Attached is the actual pre- amp board.
https://www.dropbox.com/s/rmpxrsciqzbb6ub/20131206_004746.jpg


Thanks