Tubes Asylum

was a Sylvania 5751 3 mica, black plate, square getter, made in the 80's?

81.202.47.219

paco

i think not, but i'd like to be sure; to my knowledge, all Sylvanias like that
were made in the 50's, or early 60's, then the Sylvanias 5751 3 micas
were made mostly GRAY plates in the 60's, then they were made 2 micas in the 70's...
is this the correct history of this tube?

best, paco

Follow Ups:

RE: was a Sylvania 5751 3 mica, black plate, square getter, made in the 80's? - Mendel 09:07:48 11/19/14 (1)
Paco I believe your chronology is essentially correct. Sylvania triple mica blackplate 5751 are all from the 1950s I believe in the 60s they switched to the grey plates. Construction was switched to double mica in the 1970s for cost (cutting) reasons.
- thanks! (nt) - paco 06:37:30 11/20/14 (0)
  .

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:

K&K Audio / Lundahl Transformers

[ K&K Audio / Lundahl Transformers Forum ]