Selling the remaining tubes of my collection as I am quiting tubes. All tubes are in great condition and are tested on my HickOK 752A tester close to or stronger than NOS. I slightly used / tried them on Schiit FV, Vaahalla, and Feliks Echo MKII.

Sold1. Mullard E188CC: 1 Matched Pairs $275/pair
1964 Mullard Holland E188CC / 7308 Quad O Gold Pins White Shield, the warmest tubes in 6DJ8 family, smooth like melted chocolate, extremely rare nowadays. If you have a bright system, these could be a cure. These measure very tightly matched and balanced; they sound simply superb - Holland Herleen production. All coded VR9.
2. Telefunken PCC88: x1 matched pair, NOS/NIB condition with original boxes, $100/pair
All sold3. Siemens E88CC: x7 tubes, all matched $150/Pair or $80/Tube. I have 7 of these left. These are very close to the insanely expensive CCA tubes if you ever heard them. Hard to find such a big LOT.
4. Sylvania 7308 : $80/pair 1 matched pair, with their original box

If you have any questions or need pictures, don't hesitate to contact me. PayPal fee and shipping included in my asking price (4% off if you pay via FF)! If you buy more than a pair I can adjust the total price a bit.