Item Tag: 60 Days

  • Vacuum Tube, EL509, JJ Electronics, Single, Power

    Product Details Vacuum Tube, EL509, JJ Electronics, Single, PowerT-EL509-S-JJSold individually The JJ Electronic EL509S is an eight pin octal based version of the EL509 / EL519. This modified version does not have the top plate cap which is instead wired to a pin on the octal base. This tube is rated for 700V and 42 Watts plate dissipation. The JJ EL509 is popularly used in output transformerless OTL amplifiers. Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> PowerClick here to visit our ebay store’s homepage.MeasurementsProduct Measurements:Body Height105 mmCathode Current (Ik)≤ 500 mAFilament Current (If)2 AFilament Voltage (Uf)6.2 VGrid 2 dissipation (Wg2)≤ 40 WGrid Current 2 (Ig2)10 mAGrid to Plate Capacitance (ca/g)3 pFGrid Voltage 1 (Ug1)-30 V typicalGrid Voltage 2 (Ug2)≤ 700 V, 160 V typicalHeater to cathode voltage (Uk/f)≤ 150 VItem Diameter38 mmItem Height116 mmPlate Current (Ia)200 mAPlate Voltage (Ua)≤ 700 V, 160 V typicalSaturation voltage (Usat)30 VACPackaging Information:Packaging Dimensions1.6 in. x 1.6 in. x 5.8 in.Weight (Packaging)0.1676 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.

  • Vacuum Tube, 12AU7 / ECC82, JJ Electronics, Standard Pins, Preamp

    Product Details Vacuum Tube, 12AU7 / ECC82, JJ Electronics, Standard Pins, PreampT-12AU7-JJSold individually The JJ Electronic 12AU7 / ECC82 is a medium gain dual triode built with the quality and reliability that we’ve come to expect from a JJ tube. This 12AU7 offers smooth tones and clear definition which is why it’s no surprise that this tube is often found in hifi equipment as well as guitar amplifiers. 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 Height49.2 mmCathode Current (Ik)≤ 20 mAFilament Current (If)300 / 150 mAFilament Voltage (Uf)6.3 / 12.6 VGain (μ)17Grid Voltage (Ug)≥ -50 V, -8.5 V typicalHeater to cathode resistance (Rk/f)150 kΩHeater to cathode voltage (Uk/f)≤ 180 VInternal Resistance (Ri)7.7 kΩItem Diameter22.2 mmItem Height56.3 mmPlate Current (Ia)10.5 mAPlate Dissipation (Wa)≤ 2.75 WPlate Voltage (Ua)≤ 300 V, 250 V typicalTransconductance (S)2.2 mA/VPackaging Information:Packaging Dimensions1 in. x 1 in. x 2.5 in.Weight (Packaging)0.0287 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.

  • Vacuum Tube, ECC823, JJ Electronics, Dual Triode, Preamp

    Product Details Vacuum Tube, ECC823, JJ Electronics, Dual Triode, PreampT-ECC823-JJSold individually In the ECC823, Section 1 of the tube (pins 6, 7, and 8) is the low gain 12AU7/ECC82 spec (gain factor 17) and Section 2 (pins 1, 2, and 3) is the high gain 12AX7/ECC83 spec (gain factor 100). ECC823 (T-ECC823-JJ) Section 1 Section 2 Pins 6, 7, 8 1, 2, 3 Gain Factor of 17 Factor of 100 Spec 12AU7/ECC82 12AX7/ECC83 ECC832 (T-12DW7-JJ-X) Section 1 Section 2 Pins 6, 7, 8 1, 2, 3 Gain Factor of 100 Factor of 17 Spec 12AX7/ECC83 12AU7/ECC82 Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> PreamplifierVacuum Tubes -> TriodeClick here to visit our ebay store’s homepage.MeasurementsProduct Measurements:Body Height49.2 mmCathode Current, system I (Ik)≤ 8 mACathode Current, system II (Ik)≤ 20 mAFilament Current (If)300 / 150 mAFilament Voltage (Uf)6.3 / 12.6 VGain, System I (μ)100Gain, System Ii (μ)17Grid Resistance, system I (Rg)2.2 MΩGrid Resistance, system II (Rg)1 MΩGrid Voltage, system I (Ug)≥ -50 V, -2 V typicalGrid Voltage, system II (Ug)≥ -50 V, -8.5 V typicalHeater to cathode resistance, system I (Rk/f)150 kΩHeater to cathode resistance, system II (Rk/f)150 kΩHeater to cathode voltage, system I (Uk/f)≤ 180 VHeater to cathode voltage, system II (Uk/f)≤ 180 VInternal Resistance, system I (Ri)62.5 kΩInternal Resistance, system II (Ri)7.7 kΩItem Diameter22 mmItem Height56.3 mmPlate Current, system I (Ia)1.2 mAPlate Current, system II (Ia)10.5 mAPlate Dissipation, system I (Wa)≤ 1 WPlate Dissipation, system II (Wa)≤ 2.75 WPlate Voltage (Ua)≤ 300 V, 250 V typicalTransconductance, system I (S)1.6 mA/VTransconductance, system II (S)2.2 mA/VPackaging Information:Packaging Dimensions0.875 in. x 0.875 in. x 1.25 in.Weight (Packaging)0.0287 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.

  • Vacuum Tube, 5Y3 S, JJ Electronics, Rectifier

    Product Details Vacuum Tube, 5Y3 S, JJ Electronics, RectifierT-5Y3-S-JJSold individually The JJ Electronic 5Y3S is a ruggedly built octal rectifier tube with a directly heated cathode. This tube’s solid construction and thick glass envelope offer high reliability. The JJ 5Y3S will work in any 5Y3 position. Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> RectifierClick here to visit our ebay store’s homepage.MeasurementsProduct Measurements:Body Height79 mmFilament Current (If)2 AFilament Voltage (Uf)5 VItem Diameter33.3 mmItem Height93 mmPackaging Information:Packaging Dimensions1.6 in. x 1.6 in. x 4.5 in.Weight (Packaging)0.1146 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.

  • Vacuum Tube, 6V6, Double Mica, JJ Electronics, Apex Matched Pair, Power

    Product Details Vacuum Tube, 6V6, Double Mica, JJ Electronics, Apex Matched Pair, Power, Package of 2.0000T-6V6-S-DM-JJ-MPPackage of 2.0000 A custom version of the JJ 6V6-S with a double top mica for increased stability. The double mica improves support for the tube structure and reduces mechanical vibrations in its components. These double mica 6V6 tubes are a great option for combo amps and any amplifiers exposed to speaker vibrations. Note that there is no benefit to using the Double Mica tubes in anything other than combo amps. The JJ Electronic 6V6S is another modern classic from JJ. This 6V6 has the standard rugged construction we’ve come to expect from JJ which allows it to handle much higher plate voltages than the typical 6V6 tube. The JJ 6V6 can even be used in place of a 6L6 in some amplifiers. Overall this tube has a warm and balanced tone with incredible separation and response. The highs come in clean and smooth with a lot of clarity. The mids are full and distinctive. The lows are fat and punchy. These tubes can cover a spectrum of sounds and styles all within the same amplifier. These tubes are matched using Apex Matching. Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> PowerClick here to visit our ebay store’s homepage.MeasurementsPackaging Information:Packaging Dimensions3.2 in. x 1.6 in. x 4.6 in.Weight (Packaging)0.23 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.

  • Vacuum Tube, EL34, JJ Electronics, Apex Burned-In Matched Pair, Power

    Product Details Vacuum Tube, EL34, JJ Electronics, Apex Burned-In Matched Pair, Power, Package of 2.0000T-EL34-JJ-MPBPackage of 2.0000 The JJ Electronic EL34 is another classic from JJ. This tube features a rugged construction leading to an incredibly reliable EL34 with astonishing tone. Overall the sound is nicely balanced with tight lows, a rich and dynamic mid range and clear highs. The JJ EL34 is a great replacement for guitar amplifiers and stereo amps as well. Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> Burned InVacuum Tubes -> PowerClick 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)-10 V to -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 Dimensions4.6 in. x 3.3 in. x 1.6 in.Weight (Packaging)0.2514 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.

  • JJ Electronic Matched Pair (2) EZ81 / 6CA4 / 6CA4A Rectifier Vacuum Tubes New

    100% Guaranteed TubesAll tubes are tested for Gm, shorts, leaks, gas, and noise on one of our vintage, calibrated, or state of the art digital tube testers. Buy from the experts and avoid hassle!Visit our store to view our inventory of thousands of tubes both NOS & New Production We are an authorized dealer for New Sensor products including Sovtek, Electro-Harmonix, Mullard, Tung-Sol, and Genalex. We sell A grade quality stock, not factory seconds like many other sellers. International Buyers Please Read our Disclaimer Below – Standard Shipping can take 3 MONTHS or more – Do NOT Trust eBay Shipping Estimates JJ Electronic Matched Pair (2) EZ81 / 6CA4 / 6CA4A Rectifier Vacuum Tubes New JJ is an undisputed leader in modern vacuum tube manufacturing, and for good reason. Among rectifier tubes, their 6CA4 (EZ81) is an industry favorite, as it provides consistent performance along with great build quality at a reasonable price point. Precision Testing & Matching Test Data on the Box Power Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Plate Current (Ip) and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher tube tester; Preamp Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Gain and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher Preamp II tube tester; Rectifier Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Emissions on a calibrated Hickok TV-7 or Triplett 3444 tube tester. Shipping We have a retail location located in Easthampton MA. You are more than welcome to pickup your order in person. Our typical hours are Monday – Friday 9:00 AM to 5:00 PM but we do offer extended hours so call first! All new production tubes ship for free so we do not combine shipping on new production tubes. We still combine shipping with vintage tubes. All orders before 1:00 PM EST ship same-day. All orders shipped within 1 business day. Domestic & International buyers can choose USPS First Class Mail or USPS Priority Mail.USPS First Class Mail is our default shipping method. Other options available only by request. Typical transit times: Domestic USPS First Class Mail: 3-9 Days, includes trackingDomestic USPS Priority Mail: 1-3 Days, includes trackingInternational USPS First Class Mail: Typically 3-6 weeks but up to 3 months! – NO TRACKINGInternational USPS Priority Mail: 6-14 Days – Includes Tracking International Shipping Disclaimer International orders will be shipped by USPS First Class Mail International by default, which is the cheapest possible way and you do get what you pay for. This shipping service is very cost-effective and extremely safe, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY DUE TO CUSTOMS, ESPECIALLY IN CERTAIN STRICT COUNTRIES LIKE RUSSIA, CHINA OR BRAZIL. We guarantee all of our shipments, but we do ask that our customers wait 90 days before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take several months to arrive, we have had less than 10 actual lost packages. * Remember – You Have 6 Months of Coverage Through PayPal or your Credit Card company * DEPENDING ON YOUR COUNTRY’S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES.Guarantee & Returns All of our products are guaranteed unless otherwise stated. We do not accept returns on the subjective basis of sonic qualities. All items all guaranteed to be as described and free of any electrical or operational faults such as shorts, low test, microphonics, noise etc. Returns will be accepted for tubes that don’t test as described in most cases, but we reserve the right to refuse a return if the tube was not tested properly by the customer; We also reserve the right to refuse a return if it is clear the item was used improperly. For example-a tube installed in the wrong amplifier. We will not accept returns for any cosmetic issues such as crooked bottles, dirty glass, poor boxes etc, unless item condition differs from the description nor will we accept a return for buyers remorse. If you bought the wrong item, you may return it but we will charge a 15% restocking fee.Vintage & NOS tubes are guaranteed for 30 days from the date of purchase;New Production tubes are guaranteed for 90 days. About UsCome visit the only retail tube store in the USA! VIVA TUBES is your source for vintage vacuum tubes. Located in an appropriately rustic mill building in Easthampton MA. We share our building with a Recording Studio, Brewery, Practice Spaces and many other small businesses. . We carry everything from vintage audio tubes and new productions to HAM tubes. We also have a variety of vintage electronic parts as well as audio equipment and more! We have a vast inventory of thousands and thousands of tubes.What started as a hobby several years ago to fund my obsession with tube audio, VIVA TUBES has quickly grown into a full time business;We pride ourselves on our excellent customer service and great attention to testing and product detail. Shop with us and find out why the majority of our customers are repeat customers.WE ARE ALWAYS BUYING TUBES – LARGE OR SMALL LOTS – WE CAN ACCEPT SHIPMENTS OR MAKE AN APPOINTMENT TO VIEW LOCALLY – PLEASE CONTACT

  • Vacuum Tube, 2A3, JJ Electronics, Matched Pair, Power

    Product Details Vacuum Tube, 2A3, JJ Electronics, Matched Pair, Power, Package of 2.0000T-2A3-40-JJ-MPPackage of 2.0000 The JJ Electronic 2A3 features a robust construction in a beautiful thick glass envelope. The JJ 2A3 offers 40 Watts of plate dissipation which far surpasses the headroom of other 2A3 tubes by 25 Watts. The single plate build and increased ratings give this tube the highest reliability. The JJ 2A3 has amazing detail and clarity with excellent separation. Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> PowerClick here to visit our ebay store’s homepage.MeasurementsProduct Measurements:Body Height150 mmFilament Current (If)2.5 AFilament Voltage (Uf)2.5 VGain (μ)4.2Grid capacitance (cg1)17 pFGrid to Plate Capacitance (ca/g)7.5 pFGrid Voltage (Ug)-45 V typicalInternal Resistance (Ri)800 ΩItem Diameter63 mmItem Height165 mmPlate Capacitance (ca)11 pFPlate Current (Ia)60 mAPlate Dissipation (Wa)≤ 40 WPlate Voltage (Ua)≤ 450 V, 250 V typicalTransconductance (S)5.25 mA/VPackaging Information:Packaging Dimensions7.4 in. x 6.9 in. x 3.5 in.Weight (Packaging)0.8466 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.

  • Vacuum Tube, EL34, JJ Electronics, Apex Burned-In Matched Quad, Power

    Product Details Vacuum Tube, EL34, JJ Electronics, Apex Burned-In Matched Quad, Power, Package of 4.0000T-EL34-JJ-MQBPackage of 4.0000 The JJ Electronic EL34 is another classic from JJ. This tube features a rugged construction leading to an incredibly reliable EL34 with astonishing tone. Overall the sound is nicely balanced with tight lows, a rich and dynamic mid range and clear highs. The JJ EL34 is a great replacement for guitar amplifiers and stereo amps as well. Not what you’re looking for? Check out our other products in this category:Vacuum Tubes -> Burned InVacuum Tubes -> PowerClick 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)-10 V to -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 Dimensions4.6 in. x 3.3 in. x 3.3 in.Weight (Packaging)0.5028 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.

  • Vacuum Tube, 6SN7, JJ Electronics, Preamp

    Product Details Vacuum Tube, 6SN7, JJ Electronics, PreampT-6SN7-JJSold individually The JJ Electronic 6SN7 is the classic double triode with a rugged construction the offers the high reliability that JJ is known for. The JJ 6SN7 features the outstanding linearity and sound of the original tubes. This tube is an excellent replacement for Hi-Fi amplifiers and preamps and will replace any 6SN7, 6SN7GTA, 6SN7GTB, or 6SN7GT. 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 Height69 mmCathode Current (Ik)≤ 20 mAFilament Current (If)600 mAFilament Voltage (Uf)6.3 VGain (μ)20Grid Circuit Resistance (Rg), Cathode Bias1.0 MΩGrid Circuit Resistance (Rg), Fixed Bias1.0 MΩGrid Voltage (Ug)-8 V typicalHeater to Cathode Voltage (Uk/f)100 VInternal Resistance (Ri)7.7 kΩItem Diameter33.3 mmItem Height86 mmPlate Current (Ia)9 mAPlate Dissipation (Wa)≤ 5 WPlate Voltage (Ua)≤ 450 V, 250 V typicalTransconductance (S)2.6 mA/VPackaging Information:Packaging Dimensions4.6 in. x 1.604 in. x 1.604 in.Weight (Packaging)0.0992 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.