Amperex 6DJ8/CC88 tubes. New old stock. S$200 for the pair.

Brimar CV4004. Direct replacement for 12AX7/ECC83 tubes. New old stock. S$100 each. Have 6 pieces.

Mullard CV491. Direct replacement for 12AU7/ECC82 tubes. New old stock. S$300 per matched pair. Have two matched pairs.

G.E. 6550A power tubes. New old stock. Two matched pairs. Made in USA. $500 for the quad set.

RCA 5691 Red Base. One of the best 6SL7 tube types. New old stock. S$400 for the pair. Sold

Mullard CV2492 is a rare and best version of the E88CC/6922 tubes. New old stock. S$350 for the pair.

Bendix 6900 tube. NOS. One piece only. This is a drop in replacement for the 5687. S$250.