You are looking a 807 tube. This was tested on a Precision Apparatus dynamic mutual conductance tube tester with the test results below. The scale on this tester's meter is "GOOD" between 55 and 100. All my tubes I sell have to be at 70 or higher on this tester unless otherwise stated. They all must pass a 2 megaohm shorts test. All my tubes are guaranteed to be as stated in the ad. Unlike others, my phone number is in ALL my listings. Call me if you need more details about my items. Read the details below -
Test result - 116
Condition - Used
Box - NO original box
Comments - This tube is a black, 2 seamed, large box plate tube with dual side disk getter. Nice reading. This tube has not been cleaned to make it look new which it's not. I sell used tubes as I find them with only testing done.
This is how I determine the condition of a "NOS" tube.
First off, there is no one that can say for sure that a tube is new. A vintage tube may be 50 or more years old and you will never know it's full history. What I go by is first and most importantly are, the test results. After that I look for heat stress normally found at the base of the tube around the pins. Discolored glass is a good indication of use due to heat. I also look at the condition of the box and print type on it and the tube. Boxes changed over the years and the tube labels changed as well. The tubes should match the box not just by the brand name on them. Having multiple tubes from one sleeve that are date code matched. Knowing where the tubes came from can help. Many factors come into play but you will notice that I will list a lot of my tube as used. They may very well be new but I side on used when I can't be sure.
Questions, feel free to give me a call @ (920) 391-8706 Thanks, Scott
I only accept payments through Pay-Pal and ship to E-Bay and Pay-Pal verified addresses.
International shipping is handled by E-Bay's contracted shipping company and NOT by me. I am not in control over any of the added charges or their amounts. ALL international shipping charges are NOT refundable for any reason. Though you are free to buy from me from anywhere around the world that E-Bay ships to, I encourage you to shop locally.
The U.S. shipping charge is there for me to cover my shipping expense, shipping and packing supplies, E-Bay and Pay-Pal fees and to help calculate my sales taxes. These charges do not change from what is listed in the ad regardless of where you live or the item(s) you buy. Look at the shipping charge as part of the total price of the item and base your purchase decision on that total. I believe you will still find my prices more than fair for the item in question.
Please be aware, If the item you are looking at is an audio tube, I do NOT have a tube tester that tests for noise ( some call microphonics) Some tubes may be tested in an amp that I have on hand and this will be noted. Otherwise I offer no warranty for returns because of this. For 99% of the people out there, this is of no concern but, for people that have devices that you have a concern with microphonics I would suggest buying your tubes from those that can give you these test results.