Two GE, by MULLARD 12AX7 ECC83 Tubes I63 Test 48/52 & 49/54 TV-7

Description

S
HINING LIGHT is Offering The Following Tubes:
Two Nice
GE
12AX7 ECC83 Tubes
Lot# N378
We have no idea of the long history of these nice tubes.
I bought them in a Tube Lot I Purchased on Ebay over Five Years Ago.
I Removed the Tubes from the Box and Tested Them on One of Our TV-7 Testers.
Ebay Says the Tubes are Used if Tested based on an Issue with a Reseller.
Tube Set: I63 MULLARD Blackburn Mfg
GE Lettering and Boxes
Test Good & Balanced on a TV-7.
Based on my history with selling tubes to resellers, if These Tubes are Tested on an Amplitrex, these Tubes will not Pass, but Fail.
Value-Added Tubes
Pins Straightened & Cleaned with Proprietary Process
Tube Surface Cleaned
"Plug & Play"
Plenty of Pictures and Test Results for You to Decide on the Condition of These Tubes :-)
This Sale is for One-Set of Two Tubes.
Testing
Hickok TV-7A/U*
Tubes Tested on Freshly Calibrated Hickok TV-7A/U Mutual Conductance Tester.
This Tester is
Equipped
with a Hollowstate Dual Digital Meter. This Meter has Traditional TV-7 Test Results Plus Plate Current Readings.
Tubes Test as Follows.
Tube Set
Readings &
Ratings (% of Calculated NOS)
48/52
& 49/54,
98
%/106% & 100%/110%
Current Readings:
5.0/5.5 & 5.2/5.7mA
No Shorts.
**The Results on Your Tube Tester May Vary from These Measurements.
TV-7: The Average (for New) Tubes =
49
TV-7 Minimum for 12AX7 Tubes:
32
.
The Minimum is Defined when the Tube has 65% of it's life left.
This TV-7 was just Refurbished and Calibrated by Nelson this May, 2021.  The Tester is the One on the Left in the Last Picture. Don't you even think the testers are included in this listing. :-)
Murphy's Law:
"All Tube Testers are Wrong but Some are Useful"
**The Results on Your Tube Tester will Vary from These Measurements.
Condition
Please Review Pictures Before You Purchase.  I proving plenty of pictures and testing data for you to make a good decision on this listing.
Flashing:
Decent Flashing that is Plentiful with typical Mullard discoloration. See Pictures.
Lettering:
Tubes have some amount of lettering worn-off. > See Pictures
Box:
GE Boxes are really showing their age.
Date Codes:
B6I1 & B613
Most Buyers on Ebay are Really Cool and are Great to Work With. Every now and then, I encounter a situation where a Buyer is Expecting Something Different than What I have Listed.
We use Detailed Pictures, Detailed Test Results, and Lots of Good Information to help you understand our listing before you purchase.
We really try hard to do a good job with Our Listings.
Here are some examples of the situations I have seen.  Maybe we can clear these issues up!
Tube Resellers
My listings are priced according to historical pricing on Ebay, test results and condition of tubes.
If I am selling tubes at less than the average selling cost, please read the detailed listing including description, and pictures.
There is a good chance that the tubes are priced correctly and you will have a hard time gouging buyers and making any more profit off of our tubes.
Test Results
If my Test Results show that the Tubes are not Perfectly Balanced and/or do not match-up perfectly, there is a Very Good Chance that your Tester will show the same results.
We sell tubes that can be balanced or unbalanced, closely matched or not matched and every point in-between.
It is very hard to find perfectly balanced tubes and/or closely matched sets with the Testing Equipment & Processes we use.
Our test equipment is able to Discriminate these differences.
Our descriptions define the situation for each tube or set.
Tubes or Tube Sets that are Balanced and Matched will be listed at a higher price.
The Tubes and Tube Sets that are somewhat unbalanced or slightly off on matching, the tubes are priced accordingly.
When Tube Testers Disagree...
If your tester shows that the tubes are weak, just send the tubes back and I will pay the shipping.
Murph will take care of you.
I will refund you when I get the tubes back and inspect.
Resellers: I cannot pay resellers extra money
besides paying for return shipping and a full refund for the purchase of the tubes and associated shipping.
Resellers: I cannot let you keep the tube sets for free.
Your tester and test results will take
precedence
over my equipment and testing preparation and process.
I ask that you be careful with tube boxes when you open the rear pull tab of the tube boxes.
Tube Resellers & Amplitrex
Tube Reseller Amplitrex Users: Based on the last two years of selling tubes, there is a very good chance that all my tubes will test bad on your reseller tester.
Totally different test parameters and good/bad thresholds when comparing results between the Amplitrex and the Hickok.
Consequently, any test results, shown above, will be negatively contradicted on a Tube Reseller Amplitrex Tester.
In short, my tubes will test bad on your Tube Reseller tester while delivering validated results and good/bad definition as per "Hickok Definition" with my four Nelson-calibrated
TV-7s completed in May,2021.
We validate our Testers with Six Sigma Gage R&Rs. I am a Certified Six Sigma Master Black Belt and validate instrumentation in my professional career.
Shorted Tubes During Shipment
Occasionally
, a tube will short-out during shipment. Totally understandable and Murph will Take Care of You.
Glass Surfaces
We clean the surfaces of the tubes as a convenience to our buyers. The cleaning process is not mean that the tube is used.
The cleaning process allows a buyer to see the inside of the tube and flashing.
If you want dirty, nicotine laden tubes, you will be disappointed with our tubes.
If addition, we cannot reverse the process of cleaning the tubes.
We cannot take the tubes back, make them dirty, and send them back to you.
Tube Pins
As detailed above, the tube pins are cleaned with our defined process.
The pins look good and the oxidation has been removed.
The clean pins do not mean that the tubes have been installed in an amp and the pins show signs of wear.
Pin wear due to socket insertion and prolonged vibration does not look like freshly cleaned pins.
After we clean the pins, we cannot reverse the process.
If you want to purchase tubes with un-straightened, oxidized pins, our tubes will not meet your
expectations.
Why buy from old Murph?
Integrity & Trust: 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. :-)