Recently I tried 4 GZ34’S.  One I’m keeping the others I selling:

1 - Mullard/Blackburn Eico branded GZ34 fat base, smooth plates, OO Getter.  Very nice and hard to find in this condition -   $175.00

1 - Used Amprex/BB GZ34, DD Getter, smooth plates.  Tested good as stated by the person I bought it from. -  $75.00

1 - Used Valvo branded, Sittard made GZ34, DD Getter, smooth plates.  Tested as good by the person I bought it from. - $65.00

GZ32’s:  I will consider these used as I have about 30 hours on one and 15 on the other if that.

1 - Pre 60’s Mullard/Blackburn GZ32.  D Getter. - 65.00

1 - Mill spec Mullard/Blackburn CV593/GZ32 O Getter. - 65.00

I’ve collected to many tubes over the years and now have settled on my choice of rectifier so there’s no point in keeping them.

The above prices do not include cost of shipping/postage or pay pal fees.