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Penta Laboratories:Penta Laboratories
3CX2500H3 8251 PL3CX2500H3:3CX2500H3 8251 PL3CX2500H3
MPN:3CX2500H3 8251 PL3CX2500H3
Country/Region of Manufacture:China
Unit Quantity:1
Platinum Tubes Penta Laboratories 3CX2500H3 Ceramic/Metal Medium-Mu Power Triode Normal 0 false false false EN-US X-NONE X-NONE The Penta Laboratories 3CX2500H3 is a medium-mu metal/ceramic external anode power triode. Maximum plate dissipation for this tube is 4000 watts, and cooling is forced-air. At moderate voltages, relatively high power output can be obtained from the PL3CX2500H3 as an amplifier, oscillator, or modulator. For grounded-grid operation, excellent shielding between the input and output circuits is provided by the grid, conveniently terminated between the filament and plate terminals. The PL8251/3CX2500F3 is designed using a rugged, low-inductance cylindrical filament stem, making it especially well suited for use in the linear filament tank circuit under VHF operation. The flexible base leads for filament connection serve to simplify socketing in low-frequency applications, and the rugged grid flange is ideal for mounting under industrial conditions. CharacteristicsPlate Dissipation (Max.) 4,000 WattsScreen Dissipation (Max.) —Grid Dissipation (Max.) 150 WattsFrequency for Max. rating (CW) 75 MHzAmplification Factor 22Filament – Thoriated TungstenVoltage 7.5 VoltsCurrent 51.5 AmpsCapacitance Grounded FilamentInput 35 pfOutput 0.9 pfFeedthrough 20 pfCooling Forced AirFlexible Base Leads Length 18.5 inDiameter 4.25 inWeight 6.5 lb New Current ProductionOur Tubes are covered by a standard 12 Month/1,000 Hour Warranty Elevate your RF welding operations with Penta Laboratories, the trusted name in industrial-grade RF power grid tubes and components. Manufacturers across industries—packaging, medical, fabric, automotive, and beyond—rely on our precision-engineered RF Power solutions to maximize the efficiency and reliability of their RF welding machinery. Featured Products (Our Best-Selling Parts): 3CX2500H3 3CX5000H3 3CX10000H3 3CX15000H3 YU108 5557 5868 Ready to upgrade your RF welding capabilities? Contact Penta Labs today for a quote or message us for expert advice, or call us directly! WHY PLATINUM TUBES? Why Penta Laboratories? Deep Expertise: We understand the unique demands of RF heat sealing technology and offer a comprehensive selection of parts for top brands. Quality Assurance: Our replacement RF power oscillator tubes, rotary RF welding parts, RF amplifier components, diodes, and capacitors meet the highest standards for performance and durability. Top Choice for Repairs: Leading RF welding repair experts trust Penta Labs for OEM-equivalent replacement tubes in some of the world’s most demanding heat-sealing applications. Competitive Pricing: Transparent, budget-friendly pricing helps you optimize your production costs. Once purchased and received by Platinum Tubes, vacuum tubes undergo exacting quality control measures to further assure reliable, sonically acceptable performance. Each power tube is then tested and graded for technical characteristics specified by platinum tubes engineers. Only after a tube successfully passes these exacting challenges is it labeled and put into stock to be sold. Tubes not meeting these criteria are rejected to the supplier or disposed of. Average tube life will depend on several parameters: product type, how the product is installed, loudspeaker efficiency, room size and acoustic damping, listening habits or average sound pressure levels, A.C. line stability and purity, and other circumstances. Generally, preamplifier tubes last up to 5,000 hours, while power amplifier output tubes will last up to 3,000 hours. Near the end of their useful sonic life, aging vacuum tubes may degrade the sonic character of the product(s) they are used in. The sound may become somewhat dry and lifeless, with a noticeable decrease in harmonic richness or bloom. Bass response may be diminished, and musical dynamics may flatten out or compress. Toward the very end of their service life, tubes may become noisy, noticeable as a slight rushing sound or rustling noise. It is far better to replace vacuum tubes prior to the end of their service life, before severe sonic degradation or outright failure occurs. Running vacuum tubes into failure may damage to other internal components and cause needless repair expense. Factors which can shorten tube life include inadequate ventilation, overdriving loudspeakers at continuously high volume levels, severely fluctuating A.C. line conditions (e.g. sagging line voltage during summer peaks of air-conditioning demand), or severe interference pulses or electromagnetic interference. *In the event of a failure, tube(s) must be sent back to us at the buyer’s expense. We will expedite any replacements after testing the tube internally at our expense.
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