Rare NOS RTC 12AX7S ECC83 Tube Mullard M8137 CV4004 Amplitrex Test 12AX7 7025 D

Here we have for sale is a very rare 12ax7 ecc83 tube. This is a NOS RTC Radiotechique Corp. 12AX7S ECC83 tube. With the “S” prefix which stands for Special or Select. The 12AX7S tube number is not very common and is a rare find in the USA and highly sought after.

eBay