These 5814A tubes test In most circumstances I’ve found they’re perfect substitutes. They have internal support rods, triple micas and O style getters. They’re all Military tubes from a...
Tube 1 - 98/99 GM, 89/89 emissions.
The tubes feature long gray plates and a round getter. Other Tubes and Accessories (eye tubes, Nixie tubes, CRTs, sockets, etc). Yes, it's that simple! Audio Preamp Tubes (12AX7,...
Tubes tests Price is for all tubes pictured.
Up for sale, a Sylvania 5814 gold brand / gold pin tube. This is a 2 mica version which tests really nicely. See pics for actual results from the...
1957 Matched Pair GE 5814A. BALANCED (5814 12AU7). 3-Mica, 5-Star, BIG DOT.
Elevate your audio experience with these NOS NIB Philips JAN 5814A Preamp Tubes, a matched pair ensuring consistency and exceptional performance. Renowned for their reliability, these tubes are a...
These are closely matched for both gain/mu and mA/V transconductance, with very strong low-noise results. This quad is very tightly matched on mA/V, with all sections testing between 1.50...
Liquidating my late husband's inventory of audio tubes. It serves as a direct, ruggedized upgrade for the standard 12AU7 and ECC82 tube types.