I have the following set of tubes sourced from Andy Bowman at Vintage Tube Services. They were used approx. 50 hours and are available for $125, shipping via Priority Mail in the US only, payment by PayPal.
1 pair RCA 5751, red/green grade, black plate, triple mica
1 pair RCA 6FQ7 clear top, green grade
![Image](https://jda1951.files.xanga.com/2024/02/IMG_20240219_093302069-768x1024.jpg)