OUR INSTRUMENTS ARE CALIBRATED WITH REFERENCE TUBES AND POWERED WITH UPS LINE VOLTAGE FOR A MORE ACCURATE AND STABLE MATCHING PROCESS
For English Language see below
12SN7 GTA RCA Black Plates [] Getter NOS NIB AMPLITREX Tested Pair
MADE IN USA
Low Noise & Microphonics
This valve is renowned for its ability to produce warm, rich sound, with a particular emphasis on mid-low frequencies, making it ideal for audio enthusiasts looking for a more "round" and less aggressive tone. Despite its warm sonic signature, the 12SN7GTA does not compromise on detail; it offers surprisingly high detail resolution, making every note and shade clearly noticeable. The RCA 12SN7GTA is also known for its ability to extend the sound image, offering a wide stage that enhances the listening experience, especially in stereo configurations. These features make it an excellent choice for those looking for not only superior audio quality but also a piece of audio history.
Valves tested on AMPLITREX AT-1000 Tube tester:
Voltage Test: Va = 250V, Vg = -8V
Average 100% Gm = 2600 ; Ia = 9.0 mA
Test Result: VERY STRONG
Valve 1:
Section 1: Gm = 2650 ; Ia = 9.8 mA
Section 2: Gm = 2550 ; Ia = 9.6 mA
Valve 2:
Section 1: Gm = 2400 ; Ia = 7.4 mA
Section 2: Gm = 2500 ; Ia = 8.0 mA
Additional testing performed:
Microphone Test
Emission Quality
Short Circuit Testing
Test for GAS
Shipping with protected packaging for added security.
Recycled and recyclable paper packaging. Closing adhesive tape in brown paper - ECO-KRAFT
Eco Compatible - SOLVENT FREE
Burglary Security Seal Policy
To ensure the highest quality and integrity of our products, Vacuum Tubes Treasures applies burglar seals to all vacuum pipes sold through our website. These seals are designed to confirm that products have not been opened or tampered with prior to delivery to the customer.
Seal Breaking Effects:
The right of withdrawal for products purchased that come with a burglar seal is subject to keeping the seal intact. If the seal is broken after delivery, the right of withdrawal lapses as the product is no longer in its original condition, in accordance with Article 59 of the Consumer Code, which excludes withdrawal for sealed goods opened after delivery.
Return Procedure for Sealed Products:
Before proceeding with returning a sealed product, please check that the burglar seal is intact. If the seal is intact and you wish to exercise your right of withdrawal within 30 days of receipt, please follow the eBay procedure for returning the products.
Acceptance of Terms:
By placing an order through our store, the customer explicitly agrees to this burglar seal policy and acknowledges that breaking the seal results in the waiver of the right of withdrawal for the specific product.
Thank you for your understanding and cooperation in maintaining the high quality and integrity of the products we offer.
12SN7 GTA RCA Black Plates [] Getter NOS NIB AMPLITREX Tested Pair
MADE IN USA
Low Noise & Microphonics
This valve is renowned for its ability to produce a warm, rich sound, with a particular emphasis on low-mid frequencies. This makes it ideal for audio enthusiasts looking for a "rounder" and less aggressive tone. Despite its warm sound signature, the 12SN7GTA doesn't compromise on detail. It offers surprisingly high resolution of details, making every note and nuance clearly perceptible. RCA's 12SN7GTA is known for its ability to extend the sound image, offering a wide soundstage that enhances the listening experience, especially in stereo setups.
These features make it an excellent choice for those looking not only for superior audio quality but also for a piece of audio history.
Tested on AMPLITREX AT-1000 Tube Tester:
Voltage Test: Va = 250V, Vg = -8V
Average 100% Gm = 2600 ; Ia = 9.0 mA
TEST RESULT: VERY STRONG
Tube 1:
Section 1: Gm = 2650 ; Ia = 9.8 mA
Section 2: Gm = 2550 ; Ia = 9.6 mA
Tube 2:
Section 1: Gm = 2400 ; Ia = 7.4 mA
Section 2: Gm = 2500 ; Ia = 8.0 mA
Other test made:
Test for Microphonic
Test for Emission Quality
Test for Shorts
Test for GAS
Shipping with protected packaging for best security.
Our Packaging is in recycled and recyclable paper. Brown paper sealing tape - ECO-KRAFT
Eco friendly - SOLVENT FREE
Anti-burglary Security Seal Policy
To ensure the highest quality and integrity of our products, Vacuum Tubes Treasures applies anti-burglary seals to all vacuum tubes sold through our website. These seals are designed to confirm that products have not been opened or tampered with before they are delivered to the customer.
Effects of Breaking the Seal:
The right of withdrawal for products purchased that are supplied with an anti-theft seal is subject to the seal itself being kept intact. If the seal is broken after delivery, the right of withdrawal ceases as the product is no longer in its original condition, in accordance with article 59 of the Consumer Code, which excludes withdrawal for sealed goods opened after delivery.
Return Procedure for Sealed Products:
Before proceeding with the return of a sealed product, check that the anti-theft seal is intact. If the seal is intact and you wish to exercise your right of withdrawal within 30 days of receipt, follow the eBay procedure for returning products.
Acceptance of Terms:
By placing an order through our store, the customer explicitly accepts this policy on anti-burglary seals and acknowledges that breaking the seal entails renouncing the right of withdrawal for the specific product.
We thank you for your understanding and cooperation in maintaining the high quality and integrity of the products we offer.