NOS Mullard 5AR4/GZ34, labelled Amperex. F32 B5I3 code (Blackburn, Sept. 1965). Regular black base, 4 serrations.
Bought last year from Dutch tube dealer Tom Heertjees ("Dioto" on A'gon.) for $145. Tested by him at 160%. Installed by me for just an hour to check that it worked. In a cigar roll and Philips Miniwatt box. I have all positive feedback of over 300 on A'gon.
$125. plus $5. Priority Mail shipping/insurance to lower 48 from NY. SOLD.
Rob
http://www.audiocircle.com/index.php?action=gallery;area=browse;album=5525&pos=7