Made in Holland by Philips (1956)
Disc Getter. It is the best EL34s from Holland.  
Great bass control and sweet midrange, very musical. Highest performance.
Click here to see the difference bettwen Metal base EL34 Holland made and UK made.
Nos but no original box. Tested matched.

Made in G.Britain by Mullard.
Fat brown base with a center hole on pin's giude. Double O-Getter.
With Metal base version, The Xf1 seri is one of legend pentode. King of EL34s in the world.
Very very hard to find a nos nib matched quad at the moment.
Nos in original box. Never been used. Tested matched (2.5%). Matched pair are available.

Made in G.Britain by Mullard.
Fat dark brown base with a center hole on pin's giude. Double O-Getter.
With Metal base version, The Xf1 seri is one of legend pentode. King of EL34s in the world. 

Used in original box. Tested strong like new.

Made in G.Britain by Mullard.
Fat dark brown base with a center hole on pin's giude. Single Bid O-Getter
With Metal base version, The Xf1 seri is one of legend pentode. King of EL34s in the world. 

Nos but no original box. Tested very strong. Matched pair and quad are available

Made in G.Britain by Mullard.
Xf2 Seri with black base and Double O-Getter.
Excellent tube. Great
Hard to find today
Nos in original box. Never been used. Matched pair are available. Tested matched (2.5%)

Made in G.Britain by Mullard.
Xf3 Seri with black base and Single O-Getter.
Excellent tube. Nice
Nos in original box.
Matched pair are available. Tested matched (3%)

Made in Holland by Philips (1957-1962).
Xf3 Seri with brown base and Double D-Getter.
Quite rare - great sound. Maybe my favourite one!!

Used but tested very good and matched. 10 tubes are available

Made in E.Germany by RFT.
Single O-Getter with 4 stapled plate. Good tube.

Nos in Telefunken box.
Matched pair and quad are available..

Made in W.Germany by Telefunken ... (Nos but no box).
Many Telefunken EL34 are reprint from RFT EL34. Only view it clearly you can recognize the differences. This is the best Telefunken tube with Double O-Getter. This type have 2 special symbols next pin 2 & 6 on the base and heat sinks "wing" on plate sides. 5 stapled plate. Matched pair and quad are available. Tested: 52, 52, 52, 51, 50, 50.