SHINING LIGHT Offers Quality Products. Our #1 Focus is Taking Care of our Customers.  
One Excellent SYLVANIA 6FM7 Tube 
  • Pictures & Descripton is for the Second Tube Available for Purchase.
  • NOS NIB Assymetric Dual Triode Tube
  • Tube Design: Equals 6EA7
  • Black Plates
  • Side "O" Getter
  • Date Code: dc/DHZ
Value-Added Tube
  • Pins Cleaned with Proprietary Process.
  • Tube Surface Cleaned
  • "Plug & Play"
This Sale is for One Tube.
Two Tubes are Available for Purchase.

Testing
B&K 606
Tube Tested on a B&K 606 Tester.  
Tube Readings[%]: 
Tube #1: SOLD
Tube #2: 
  • 82/80
  • No Shorts.
  • No Grid Leakage
Murphy's Law:
"All Tube Testers are Wrong but Some are Useful"
The Results from Your Tester will probably Differ from my Results.

Shipping:
  • I Have Combined Shipping that Adjusts the Shipping Weight for Multiple Items in a Shopping Cart. 
  • If the Shipping Price is Still Too High, Compared to the Actual Cost, I will Refund You the Difference after Printing Out Shipping Label.
  • I am Not Selling on eBay to Make Money on Shipping.
Returns:
  • I Do not Have Many Returns.  
  • My Overall Return Rate is 1.11%.
  • At Times, when I Get a Return Request, I Might Just Refund w/o Returning Depending on the Situation.  Makes No Sense to get a Shorted Tube back in the Mail!
  • If You Need to Return, it is Cool.  
  • Sometimes, Tubes will not Make the Journey to Your Address.  
  • The Frequency is very small, approximately 0.25%.  
  • Usually, the shipping box is destroyed or the Tube Shorts during Shipment.
99% of Audio Tube Buyers are Easy to Work with.  We are family.  That 1% is where the Problems Usually Occur.

We Offer 30 Day Returns with a Free Shipping Label.  Returns Accepted if the Items are Returned in the Exact Same Condition.

Test Driving Tubes and Returns.
  • The Same Exact Tubes Must be Returned.  No Switching Tubes.
  • Tubes must Test with the Same Numbers Upon Return. There is normal variance in Test Results so I take this into Consideration.  I Validate Test Instrumentation in my Professional Life.
  • The Flashing Must be in the Same Condition Upon Return.
  • The Plate Surfaces Must be in the Same Condition upon Return.
  • The Lettering on the Tubes Must Also be in the Same Condition upon Return.
Tube Boxes and Pull Tabs
  • The Pull Tabs on the Tube Boxes Must be in the Same Condition upon Return.
  • Try Opening the Rear Pull Tab First.  If the Tube is Not Accessible from the Rear Tab, Go to the Front Tab. 
  • The Supplied Foam or Cotton must be Installed on Each End of the Tube in Each Box.
  • If the Pull Tabs are Torn Upon Return, the Refunded Price will be Adjusted Accordingly.
Tape Might be Used to Hold End Pull Tabs in Place when You Receive Your Package.
  • The Pull Tabs might be Taped so Tubes do not Fall-Out of Boxes During Shipping.
  • Carefully Cut the Tape on the Pull Tabs to Open Box Pull Tabs.
Inexpensive Retractable Box Cutting Knife Works Well for Opening Tube Boxes. 
  • Use the Blunt Side of a Thin Box Cutting Knife to Aid in Opening the Pull Tabs.
  • Hold Tubes in Areas where there is No Silkscreen.  This is an Art.
Facts about Murph...
  • I Grew Up in the 70s and Love Rock Music.
  • The Best Concerts I saw were Aerosmith, Judas Priest and Iron Maiden.
  • I was at the Forefront of Installing Sound Systems in Cars. Alpine Head Units and Rockford Fosgate Amps were my preferred selections.
  • 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, at UW-Madison and it was a good move.
  • I spent most of my career in the Confectionery Industry in R&D, Continuous Improvement & Quality Engineering.
  • If you ever ate a candy bar, I might have had something to do with the quality...
  • Over the last 15 years, I have moved my spare time to repairing tube and discrete amps & receivers.
  • I like Fisher Receivers and Scott Amps.
  • Statistics-driven when evaluating vacuum tubes > Certified Six Sigma Master Black Belt.
  • Testing Equipment: Two Nelson Hickok TV-7s, Two Hickok 539Bs, and an AMPLITREX AT-1000.
  • I Really Try to List & Sell Really Good Vacuum Tubes.