Triple Platinum Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 95%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).
eBay
You have a partner in resolving any issues that may arise. Excellent Clean and TESTED working condition. NO hoping you get a good condition item. NO Guessing.
eBay
Construction: short gray plate ring getter copper rods. Tested at: 71/79 plate current 7.9/8.2. The minimum is equal to 65% of the life of the tube. Glass: clear. Tested for shorts and gas. Date codes 912 0-26.
eBay
The 12AX7A RFT "National" NOS/NIB is a vintage preamp tube manufactured in Germany by National. This unit is a single piece and is considered a rare find for collectors of vintage audio equipment. The 12AX7A model is known for its high-quality sound and is sought after by audiophiles looking to add a touch of nostalgia to their collection. This unit is a must-have for vintage audio enthusiasts looking to enhance their sound system with a piece of history.
eBay
POSSIBLE BRIMAR, BADGED AS A MAZDA VALVE, Difficult to read 8 digit side code = ?. United Kingdom. EQUAL ANODE EMISSIONS = A1 95% A2 95%. SLANTED /ANGLED HALO GETTER. 14mm Ladder Plates. FM Crystal radio FM dETECTOR RADIO. fm trf rIGONDA. vega hf receiver ShortWave transceiver tuner. Saba Breisgau Saba automatic tuner.
eBay
Type 12AX7A (ECC83) vacuum tube. (Triode#1 / Triode#2). Hickok TV-7B/U tested. Hickok TV-7B/U is a mutual conductance (Gm) type tube tester. One tube,circa 1960s ,USA madeby RCA. Tube features gray-Ladder-plates and a 'Halo-Ring' getter on top.
eBay
Here we have for sale is an outstanding NOS RCA JRC-5751 tube. Premium quality Mil Spec tube. Black 14mm plates 3x mica spacers and D-getter. All the best and most sought after features of the earliest produced 5751 tubes.
eBay
The NOS Rare 1951 12AX7 with long gray plates and bent getter. These early 1950s tubes, often from manufacturers like RCA, GE, or Tung-Sol, feature extended gray ribbed plates around 17mm long and a distinctive bent or D-shaped getter ring, contributing to low noise, rich harmonics, and classic tone.
eBay