This increase gives the tube more headroom and a tighter response on the low end. These tubes are matched using Apex Matching. Blue glass envelope. Grid to Plate Capacitance (c. Plate Capacitance (c. ).
Product Details Vacuum Tube, ECC803 / 12AX7, JJ Electronics, Longer Plate, Standard Pins, PreampT-ECC803-S-JJSold individually The JJ Electronic ECC803 is a high performance, long plate version of the ECC83 / 12AX7. Like all JJ preamp tubes, these are built into a rugged package using the spiral filament and robust plate structure resulting in low microphonics and high reliability. The long plate version of this tube differs from the standard version with its stronger and fuller sound which offers a wider and more balanced frequency response. This tube ranges from deep rich lows to pristine highs covering a spectrum of harmonically dynamic mids along the way. This tube is an excellent choice for any guitar amp and perfect for studio and Hi-Fi equipment as well. This tube will work in any 12AX7 or ECC83 position. Not what you're looking for? Check out our other products in this category:Vacuum Tubes -> PreamplifierClick here to visit our ebay store's homepage.MeasurementsProduct Measurements:Body Height51.2 mmCathode Current (Ik)≤ 9 mAFilament Current (If)300 / 150 mAFilament Voltage (Uf)6.3 / 12.6 VGain (μ)100Grid capacitance (cg1)1.6 pFGrid Circuit Resistance (Rg)2,2 MΩGrid to Plate Capacitance (ca/g)1.7 pFHeater to cathode voltage (Uk/f)≤ 100 VInternal Resistance (Ri)62.5 kΩItem Diameter22.2 mmItem Height57.6 mmPlate Capacitance (ca)0.46 pFPlate Current (Ia)1.2 mAPlate Dissipation (Wa)≤ 1.2 WPlate Voltage (Ua)≤ 300 V, 250 V typicalTransconductance (S)1.6 mA/VPackaging Information:Packaging Dimensions1 in. x 1 in. x 2.5 in.Weight (Packaging)0.0309 lbs.About UsAbout 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.
Product Details Vacuum Tube, EL34 II, JJ Electronics, Pentode, PowerT-EL34II-JJSold individually The JJ Electronic EL34 II is a different construction of the classic EL34 tube that offers a different tonal palette than the original. This tube has a more compact plate structure than standard EL34’s. The JJ EL34 II has an increased low to low-mid end with plenty of headroom to spare. This tube has a thick and tight bass response. The mids are balanced and harmonically rich with pleasantly smooth highs. The JJ EL34 II is stronger than the original but not harsh sounding in any way. When overdriven, this tube has a warm and dynamic distortion that rivals many vintage tubes. Not what you're looking for? Check out our other products in this category:Vacuum Tubes -> PowerVacuum Tubes -> PentodeClick here to visit our ebay store's homepage.MeasurementsProduct Measurements:Body Height98 mmCathode Current (Ik)≤ 150 mAFilament Current (If)1.5 AFilament Voltage (Uf)6.3 VGain (μg2/g2)11Grid 2 Dissipation (wg2)8 WGrid Capacitance (cg1)15.5 pFGrid Current 2 (Ig2)14.9 mAGrid to Plate Capacitance (ca/g)1.3 pFGrid Voltage 1 (Ug1)-13.5 V typicalGrid Voltage 2 (Ug2)≤ 450 V, 265 V typicalGrid Voltage 3 (Ug3)0 V typicalHeater to cathode resistance (Rk/f)20 kΩHeater to Cathode Voltage (Uk/f)≤ 100 VInternal Resistance (Ri)15 kΩItem Diameter33.3 mmItem Height112 mmPlate Capacitance (ca)10 pFPlate Current (Ia)100 mAPlate Dissipation (Wa)≤ 25 WPlate Voltage (Ua)≤ 800 V, 250 V typicalTransconductance (S)11 mA/VPackaging Information:Packaging Dimensions1.59 in. x 1.59 in. x 4.61 in.Weight (Packaging)0.1257 lbs.About UsAbout 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.
The JJ Electronic EL84 is a solidly built EL84 / 6BQ5 with excellent tonal qualities. When saturated the harmonics are rich and dynamic. The JJ EL84 nails the classic sound of this tube. This tube can replace any EL84 or 6BQ5 tube.
The JJ Electronic EL844 is a variation on the classic tube which reduces the overall headroom by 25%. With the reduced power, hitting that rich distortion that the EL84 is notorious for is more manageable.