Home Tubes Asylum

Questions about tubes and gear that glows. FAQ

Right leaning triangle... Phillips Heerlen...

Straight up triangle is Phillips Copenhagen.
That said, this is the first I've seen the codes on the bottom glass from Phillips/Amperex. I've always seen the codes acid etched in the glass in the area of the bottom mica.

IIRC, Siemens and/or Tele codes them as such.

Cheers,
W


This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]


Follow Ups Full Thread
Follow Ups

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.