SHINING LIGHT is Offering The Following Tube:
One Excellent REALISTIC LIFETIME 50L6GT Tube 
Lot#: M35
  • NOS NIB
  • USA Mfg.
  • Gold Clad Pins
  • Grey Plate
  • Side "O" Getter
  • Tests Strong
  • Date Code: No Date on Tube.
Value Added Tube
  • Tube Surfaces Cleaned
  • "Plug & Play"
Testing
Hickok TV-7A/U*
Tube Tested on Calibrated Hickok TV-7A/U Mutual Conductance Tester.
Tube Tests as Follows.
(Actual Tube Readings and Percentage of Average NOS Tubes)
  • 79: 114%
No Shorts.
TV-7: The Calculated Average for New Tubes: 69
TV-7A/U Minimum (65% of New Tubes) for 50L6 Tubes: 45
*TV-7A/U has been Refurbished and Calibrated by Dan Nelson.

Murphy's Law: 
"All Tube Testers are Wrong but Some are Useful"
The results of your tube tester may vary from these measurements.

Returns:
  • We Offer 30 Day Returns with a Free Shipping Label!
  • Returns Accepted if the Items are Returned in the Exact Same Condition.
  • The Pull Tabs on the Tube Boxes Must be in the Same Condition.
  • The Cotton must be Installed on Each End of the Tube in Each Box.
  • The Pull Tabs will be Taped so Tubes do not Fall-Out of Boxes During Shipping.
  • Carefully Cut the Tape on the Pull Tabs to Open Boxes.
  • The Lettering on the Tubes Must Also be in the Same Condition upon Return.
  • Hold Tubes in Areas where there is No Silkscreen.
  • Tubes Must Test with the Same Results Upon Return.
Facts about Murph...
  • Dairy Farmed in Green Bay, WI until I was about 27 years old.
  • Started out my career in electro-mechanical, then Electrical Engineering.
  • Moved into Biological Engineering where I spent most of my career.
  • If you ever ate a candy bar, I might have had something to do with the quality...
  • Over the last 10 years, I have moved my spare time to repairing tube and discrete amps & receivers.
  • I like Fisher Receivers and Scott Amps.
  • I have too many tubes.
  • Statistics-driven when evaluating vacuum tubes > Certified Six Sigma Master Black Belt.
  • Testing Equipment: Two Nelson Hickok TV-7s, Two Hickok 539Bs, One Recently Acquired AMPLITREX AT-1000.
  • I have too many testers.
  • Murph really tries to to list and sell really good vacuum tubes.

Why buy from old Murph?
  • Integrity & Trust: Just Check my feedback
  • I answer emails.
  • I ship fast. I pack well.
  • I combine shipping.  The shipping calculator should work for this listing.
  • I don't require immediate payment.  You can add items and I can invoice you with combined shipping.
  • I use the Ebay return policy of 30 days.
If you have any problems and old Murph will take care of you.  :-)
I want to ensure that you are happy with your purchase. Sometimes, Murph misses something.  Murph is getting old and can make mistakes on occasion!  Murph's goal is a 5-Star sale to you, my customer! If you feel that Murph has fallen short, feel free to contact Murph and we will get it straightened-out. :-)