[YungFrieza]

Short Answer: No


Long Answer: Vali2 requires a dual Triode tube. The 6sk7 is a single pentode. Theoretically, you could use two of them, but I am certain that it would sound terrible.


PS If you used two, you would also need another heater power supply.

Thanks!

 

[Hofy]

I woke this guy up from his nearly 55 year slumber.  Even straight out of the box it is blowing away the Canada 6BZ7.
 
Tung-Sol 6BK7B
 

 

[Niggi183]

What are good tubes for a hd 650?

 

[RickB]

  What are good tubes for a hd 650?

Current production: 6CG7 EH
 
NOS: Sylvania 6DJ8 "Green Hornet".
 
Those are my preferences. 

 

[DomieMic65]

I have my Vali2 a few days now and I like it very very much ... would the EH 6922 Gold Pin be the obvious choice for my HD600 and Sines?
I like the stock tube quite a lot but I wan to explore what this little think can do!
Thnx...

 

[Faber65]

I have my Vali2 a few days now and I like it very very much ... would the EH 6922 Gold Pin be the obvious choice for my HD600 and Sines?
I like the stock tube quite a lot but I wan to explore what this little think can do!
Thnx...

IMHO, starting the exploration with the EH6922 gold pins, it's a wise and safe choice.

 

[DomieMic65]

IMHO, starting the exploration with the EH6922 gold pins, it's a wise and safe choice.

Yes from the reading I' ve done so far this seems to be the case...
 
Thnx

 

[DeeKay10]

Call me newbie, but just ordered an Electro-Harmonix 6CG7 tube after reading it's nice and warm, and then it hit me it says "pre-amplifier tube".
Doesn't matter whether it's for an amp or a pre-amp, right? This is the model: https://www.tubedepot.com/products/electro-harmonix-6cg7-6fq7-eh-preamp-vacuum-tube

 

[RickB]

  Call me newbie, but just ordered an Electro-Harmonix 6CG7 tube after reading it's nice and warm, and then it hit me it says "pre-amplifier tube".
Doesn't matter whether it's for an amp or a pre-amp, right? This is the model: https://www.tubedepot.com/products/electro-harmonix-6cg7-6fq7-eh-preamp-vacuum-tube

That's no problem. That tube works great in the Vali 2 (my personal experience). 

 

[DeeKay10]

Phew. Great. Super thanks!

 

[tafens]

Call me newbie, but just ordered an Electro-Harmonix [COLOR=333333]6CG7 tube after reading it's nice and warm, and then it hit me it says "pre-amplifier tube".[/COLOR]
[COLOR=333333]Doesn't matter whether it's for an amp or a pre-amp, right? This is the model: [/COLOR]https://www.tubedepot.com/products/electro-harmonix-6cg7-6fq7-eh-preamp-vacuum-tube

The tubes that goes in the Vali2 are often found under the category "preamp tubes" (which makes sense, as the Vali2 has preamp out connectors - to be connected to a power amp or powered speakers - and cannot drive speakers directly).

 

[Hofy]

Everything that has been said about the 6SN7 in the Vali2 is true.  My adapter came in yesterday.  Dropped in one of Raytheon 6SN7GTB I have been storing for years.  
  
 

 

[volly]

Everything that has been said about the 6SN7 in the Vali2 is true.  My adapter came in yesterday.  Dropped in one of Raytheon 6SN7GTB I have been storing for years.  
  

Ohhh...I love that volume knob and I agree 6ns7 tubes are on another level!

 

[Hofy]

Ohhh...I love that volume knob and I agree 6ns7 tubes are on another level!

 
If anyone is interested I got the knob off ebay from gd-parts  Just search for 1PC 20*15mm Silver Machined Solid Aluminum Knob Guitar Amp Cabinet Effect Pedal.  Machined solid aluminum for $8.

 

[winders]

I acquired a tube that is is described as follows:
 
NOS Siemens Halske CCa (6922) (71-30) with grey plates made in the Siemens Munich Germany factory in the 60's. Here are two photos:
 

 

 
 
Is this one of the desirable Siemens Halske CCa tubes?
 
Thanks!