I have been trying to find everything I need do to my music playing from your site because of the quality and price let alone the speed of your delivery. So far you are at the top of my list. Thank you. It’s good to know there are good businesses left in this day in age. Again, thank you

Good tubes, amp sounds great, thanks Bought these tubes and put them in right away after setting the bias, started playing and was very impressed whit the sound of my amp.

matched 6L6GCs this source matches these tubes very well…..I use a 1 ohm resistor on each cathode so you can read the voltage out put on them as milliamps directly…they were all within about 2 ma. of each other ! GREAT JOB ! …and no high frequency oscillations like some others I have in stock for my quad 100W… one more great item on my bucket list after about 50 years in the field in hobby fashion.

Great seller and shipped out quickly! I had heard a lot about the winged C’s and probably have had some from the past that were the original Svetlana’s that I remembered sounding great so I decided to give these a try, although a bit pricey, I’ve played through the amp a few times since installing them and I must say there is something a bit special about the sound of these, may have to consider another quartet in the future if there’s any left. Thanks!!!