-40%
Vacuum Tube, EL84-STR, Redbase, Tube Amp Doctor, Power
Vacuum Tube, EL84-STR, Redbase, Tube Amp Doctor, Power
Vacuum Tube, EL84-STR, Redbase, Tube Amp Doctor, Power

Vacuum Tube, EL84-STR, Redbase, Tube Amp Doctor, Power

$ 13.71

  • Amplifier Type: Unknown
  • Approximate net weight: 19 g (0.67 oz.)
  • Base: noval, 9-pin
  • Brand: Tube Amp Doctor (TAD)
  • Cathode: Oxide-coated, unipotential
  • Cathode-to-heater potential, max.: +100 V
  • Compatible Brand: Any
  • Compatible Model: Any
  • Cooling: Convection
  • Diameter: 22.5 mm (0.88")
  • Features: None
  • Height: 77 mm (3.031")
  • MPN: T-EL84-RB-TAD
  • Max. DC cathode current: 65 mA
  • Max. DC plate voltage: 420 V
  • Max. Grid no.1 (control) voltage: -100 V
  • Max. Grid no.2 DC (screen) dissipation: 2 W
  • Max. Grid no.2 DC (screen) voltage: 300 V
  • Max. HeaterCurrent: 0.76 A
  • Max. Plate dissipation: 12 W
  • Nom. Heater Voltage (AC or DC): 6.3 V
  • Operating Position: Any
  • Seated height: 71 mm (2.795")
  • Typ. Grid 1 Control Voltage: -4.8 V
  • Typ. Grid 2 Screen Voltage: 250 V
  • Typ. Load Resistance: 5200 Ohms
  • Typ. Maximum Signal Plate Current: 80 mA
  • Typ. Output Power at 9.5% distortion: 5.7 W
  • Typ. Peak AF Grid 1 Control Voltage: 14 V
  • Typ. Plate Voltage: 250 V
  • Typ. Transconductance (nominal): 9.000 mS
  • Typ. Zero Signal Grid 2 Screen Current (avg): 10.8 mA
  • Typ. Zero Signal Plate Current: 49.5 mA
  • Type: Vacuum Tube
  • UPC: Does Not Apply
  • gtin13: Does Not Apply

Description

Product Details Vacuum Tube, EL84-STR, Redbase, Tube Amp Doctor, Power T-EL84-RB-TAD Sold individually The all new TAD-EL84-STR Redbase brings together the best of both - the famous EL84-Cz and the EL84M. We opted for the thickest glass possible and the heaviest construction available, just like the Russian EL84M, and combined these features with the sonically most promising cathode plate options, in order to meet and exceed the tonal quality of the EL84-Cz especially with regard to its linearity over the entire frequency range. Finally we added the gold grid wire in order to improve overall reliability. The sound can be described as very harmonic in the middle and treble frequencies, without adding too much power to the bass. The result is the best EL84 in current production. Note: Due to its diameter of 22.5mm, the TAD EL84-STR does not fit into older Marshall DSL401 made till week #20 in 2014 and the UK made VOX AC15 TBX amplifiers from the same time period. Later versions of these amplifiers have been updated to accept 22.5mm diameter tubes with no problem. Q: When does a power tube become a Premium Selected power tube? A: All power tubes labeled Premium Selected have passed the following tests: Plate Current (PC) and Amplification (TC) Low Noise Test Microphonic Test Sonic Tests Shock Tests Listening Tests Shorts & Leakage Tests Not what you're looking for? Check out our other products in this category: Vacuum Tubes -> Power Click here to visit our ebay store's homepage. Measurements Product Measurements: Approximate net weight 19 g (0.67 oz.) Base noval, 9-pin Cathode Oxide-coated, unipotential Cathode-to-heater potential, max. +100 V Cooling Convection Diameter 22.5 mm (0.88") Height 77 mm (3.031") Max. DC cathode current 65 mA Max. DC plate voltage 420 V Max. Grid no.1 (control) voltage -100 V Max. Grid no.2 DC (screen) dissipation 2 W Max. Grid no.2 DC (screen) voltage 300 V Max. HeaterCurrent 0.76 A Max. Plate dissipation 12 W Nom. Heater Voltage (AC or DC) 6.3 V Operating Position Any Seated height 71 mm (2.795") Typ. Grid 1 Control Voltage -4.8 V Typ. Grid 2 Screen Voltage 250 V Typ. Load Resistance 5200 Ohms Typ. Maximum Signal Plate Current 80 mA Typ. Output Power at 9.5% distortion 5.7 W Typ. Peak AF Grid 1 Control Voltage 14 V Typ. Plate Voltage 250 V Typ. Transconductance (nominal) 9.000 mS Typ. Zero Signal Grid 2 Screen Current (avg) 10.8 mA Typ. Zero Signal Plate Current 49.5 mA Packaging Information: Packaging Dimensions 1.0325 in. x 1.115 in. x 3.3 in. Weight (Packaging) 0.194 lbs. About Us About Amplified Parts: Backed by over 30 years of experience serving the electronic hobbyist market, Amplified Parts® provides the parts you need to modify, repair, or build your own audio and musical instrument equipment, from transistor radios to vacuum tube amplifiers, guitar pedals, and modular synthesizers. Our mission is to provide our customers with high quality products from an inventory of over 12,000 unique items, and to share our expertise via our large library of tech articles and equipment build guides. Whether you are building cutting-edge equipment or restoring classic gear with historical accuracy, Amplified Parts® has what you need. We typically ship the same day if your order is placed before 12:00pm Arizona Time Monday through Friday excluding holidays. All packages are insured and we assume responsibility for the shipment until the carrier shows delivery. Click here to visit our ebay storefront.