Plz help with VH4 tubes

[luidevil]

hello everyone..i am going tour and i want to buy some spare tubes for my vh4.My head has 12ax7 preamps and EL34 poweramps and i need to know if the following are suitable and if can change them my self by just plug the new ones if something happens

https://www.thomann.de/gr/tad_rt164_roeh ... artett.htm
https://www.thomann.de/gr/tad_rt154_roeh ... artett.htm
https://www.thomann.de/gr/sovtek_roehre_12ax7_wxtps.htm
https://www.thomann.de/gr/sovtek_roehre_12_ax7_wa.htm

if they dont do the job plz recomend and if u can provide me detailed specs..thanx a lot in advance guys(Big Pappa if you can answer personaly it would be very helpful )

 

[FourT6and2]

Any 12AX7 will work. They are plug-and-play.
Any EL34 will "work." But you MUST BIAS THE AMP if you put in new tubes.

 

[bronz79]

For power tubes:

You can use TAD EL34B-STR, i think they have exatcly the same construction of Ruby EL34BHT.

For preamp tubes if you can't find Ruby:

Highrade TAD for V1,V2 the rest normal Shuguang (Ruby select them)



P.s. Sovtek WB in V1 for a more smooth sound.

 

[luidevil]

thanx everyone for your quick responce...but should i re-bias when i put the el434 or not if i use the exact tubes that i have now?

 

[Ventura]

Things float and vary - I always always always recommend a re-bias with any new quad.

Just my 2 cents.

V.