Author Topic: Date codes for General Electric slimline lamps C.mid-late 50's-70's  (Read 2684 times)
Burrito
Member
*****
Offline

Gender: Male
View Posts
View Gallery

GE HM1000's


Date codes for General Electric slimline lamps C.mid-late 50's-70's « on: December 12, 2022, 09:02:52 PM » Author: Burrito
Hello.
I have a question regarding specific lamp date numerals for General Electric slimline lamps from around mid-late 1950's to 1970's (any year)

Thanks!
Logged

ON LG FOR 2 YEARS! Please don't ask to meet up with me, as I am still living with my mother. Don't send me items either please, thank you!
Please, watch out for the future. It's not looking good. Loves instruction manuals of any kind!

funkybulb
Member
*****
Offline

Gender: Male
View Posts
View Gallery


Re: Date codes for General Electric slimline lamps C.mid-late 50's-70's « Reply #1 on: December 18, 2022, 07:59:03 AM » Author: funkybulb
 I  know  1960s to 1993

  Etch start  With a dash mark for Each letter of General Elc.
   First letter of each year G is 1 and C is 0.  It runs in a 10 year
  Cycle.   There  are details u need pay attention to.   Such as 1
 Hole punch end caps from  1960s.   Two hole punching in end caps and inside etch  and Outside etch details.   Late 70s to
 1993 would have outside etch,  70s  lamp generally  have inside
 Etch with  two hole punching.  While 60s  lamp have inside etch
  1 hole punching.   Now 1950s   early 60s  F40s  would of 3 and 3 plus etching  for  the CW , WW and Daylights.   1950s  it be cool white standard,  warm white standard  era
Logged

No LED gadgets, spins too slowly.  Gotta  love preheat and MV. let the lights keep my meter spinning.

Print 
© 2005-2024 Lighting-Gallery.net | SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies