PL509 40KG6 Philips Holland, made in Philips Heerlen plant. True triple mica construction and three holes in plates.
“AAA” Philips type code for PL509, delta3A3 & delta1E1 codes.Triple mica spacers clearly visible on photos above.
This is matched quad within 10%, perfect for push pull PL509/PL519 40KG6/40KG6A amplifier.
Click to see all EL519 6KG6 PL519 40KG6 and other SWEEP TUBES in stock
I wonder what the PL509 40KG6 Philips/Herleen and Mullard/Blackburn cost,
Do you have 12 pieces (matched 2×6)?
Dear Staffan,
I have just EI PL519 dual mica and triple mica construction in enough big qtys to match them for 2×6 pcs.
Kind regards and thanks for visiting http://www.tubes.rs!
Are these still available please