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Sylvania 12SK7 Variable μ Pentode for RF and IF Amplifiers

Sylvania 12SK7 Variable μ Pentode for RF and IF Amplifiers

$ 5.81

  • Brand: SYLVANIA
  • Country/Region of Manufacture: United States
  • MPN: 12SK7 12SG7 12SH7 12SJ7
  • Model: 12SK7 12SG7 12SH7 12SJ7
  • Seller Notes: “Filament continuity test passed. No other tests were performed.”
  • Type: Vacuum Tube

Description

Sylvania 12SK7 VACUUM TUBE 12SG7 12SH7 12SJ7 Satisfaction Guaranteed! Free Shipping anywhere in the USA! Description: The 12SK7 is a variable μ pentode for RF and IF amplifiers in superhet receivers. The gain of the device being controlled by a negative voltage derived from rectifying the final IF signal. In this way strong signals do not overload the receive chain because the various controlled stages have their gain reduced. The 12.6 Volt heater was introduced so that the heater could be run directly from a vehicle battery. It would have been common to find these valves in professional mobile equipment. For fixed station use the 6SK7 was an identical device in all other respects. Key Features: Model: Sylvania 12SK7 Type: Pentode Tube Application: Ideal for vintage audio amplifier projects, tube radios, or as an authentic replacement for your existing 12SK7 tube. Condition and Testing: This Sylvania 12SK7 tube has had it's filament continuity tested. Shipping and Packaging: Your 12SK7 tube will be carefully packaged to guarantee secure and safe delivery to your doorstep. We understand the importance of preserving vintage electronics and take every precaution to safeguard your investment. Buy with Confidence: As a trusted eBay seller committed to customer satisfaction, we stand by the quality of our products. Specifications: Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uka) Was used by Radio/TV-reception etc. Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / This tube can be used in place of 12SG7, 12SH7, and 12SJ7 tubes. Fast Shipping We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee We are committed to making sure that you leave this transaction satisfied. If you're unhappy with the product for any reason, you may return it back for your money-back within 30 days. No questions asked! Your original item cost, shipping fee and taxes will be refunded. Get in touch right away if there are any concerns.