Audio Asylum Thread Printer

Get a view of an entire thread on one page

FAQ / News / Events

Tubes Asylum

Bogen label

75.130.151.82

posaune32foot@gmail.com

I have a 12ax7 labeled Bogen. Any idea who really made it? It flares up when you turn the power on.

Follow Ups:

RE: Bogen label - Triode_Kingdom 20:05:17 11/05/24 (1)
Why would you ask this question without posting a photo of the tube? We're not mind readers.
- RE: Bogen label - Byrd69 20:45:43 11/05/24 (0)
  Not many people own a camera these days.
  
  Your interest may vary but the results will be same. (Byrd 2020)
  
  I can't compete with the dead. (Buck W. 2010)
  
  Cowards can't be heroes. (Byrd 2017)
  
  Why don't catfish have kittens? (Moe Howard 1937)
RE: Bogen label - Mick Wolfe 10:27:19 11/04/24 (1)
The start up flash you've noted is quite common to older production "real" Mullard's for one. My NOS Mullard 12AT7's do the same. I believe there are other NOS or ANOS European small signal tubes that exhibit a flash on start up. Amperex maybe?
- RE: "Start Up Flash" - opalize 12:44:27 11/06/24 (0)
  It could be Mullard. But not all tubes that flash at startup are Mullards. US-made early-'60s CBS 12AX7A also flash on startup. And not all true Mullards will flash. Bogen did utilize Mullard stock, however...
  
  A photo is necessary for a positive I.D.

Post a Followup:

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.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors:

Parts Connexion