Replacement Eimac Tubes For Sale: Our Full Eimac Tube Catalog
If you’re looking for Replacement Eimac tubes for sale, you’re usually trying to match a proven designation used in RF power systems and industrial equipment where uptime matters.
This page is built to make that process simpler, with a fast path to the right product family. Browse our full replacement Eimac tube catalog below to narrow your options, then confirm operating conditions and installation constraints before finalizing a match.
If you’re unsure which tube is correct for your equipment, we can help you validate the best fit before you order.
Replacement Eimac tubes for sale
Our lineup focuses on consistent build quality, dependable output, and practical compatibility for real-world maintenance and replacement work.
When you’re replacing worn components, the goal isn’t just “a tube that fits,” it’s a tube that performs predictably under your operating conditions.
We supply Eimac parts used across high-power RF environments, with support available to help you confirm the right designation, tube family, and configuration for your system. If you’re working from a manual, BOM, or legacy service documentation, share those details and we’ll help you align the replacement to what your equipment actually needs.
5CX1500A
4CX1500A - 1500 W RADIAL BEAM POWER TETR0DE
4CX350AC/8321A - 350 W Radial Beam Power Tetrode
4CX350A/8321 - 350 W RADIAL BEAM POWER TETRODE TUBE
3CW45,000H3 - 45 KW MEDIUM MU POWER TRIODE
3CX20,000A7 Power Triode Tube
3CX10,000H3 - 10 KW POWER TRIODE
3CX2500A3 / 8161 Triode Tube
Eimac 4CX600J/8809
Questions about replacement Eimac tubes?
Replacement Eimac tubes are commonly used in equipment where high-power RF generation, amplification, or controlled energy delivery is critical.
In practical terms, that often includes industrial RF power platforms, legacy transmitter-style systems, and specialized RF applications where tube architecture is selected for stability under load. Depending on the system, customers may be replacing tubes in RF amplifier chains, end-stage power sections, or other high-power assemblies where thermal management, mechanical fit, and operating class all matter as much as the designation on the label.
Across these machines, the tube families you’ll typically see include high-power triodes, beam power tetrode designs, and pentodes where the architecture and operating requirements call for it.
What matters most is matching the replacement to the real constraints of the system: cooling method, mounting and connection style, filament requirements, and the expected operating envelope.
When a system has been revised over time, or when documentation conflicts with what’s installed, it’s easy to end up with a “near match” that creates instability, short life, or poor performance.
If you’re selecting replacement Eimac consumables for maintenance, repairs, or planned downtime, the fastest path is to share the designation you’re replacing (including any alternate names used in your documentation), your machine type, and the operating details you have available.
Reach out for help confirming the right replacement Eimac consumables, and we can guide selection and pricing so you avoid costly misorders and get back to reliable output.
We also supply tubes and replacement parts for other major OEM ecosystems. If your system is based around another platform, start with these collections.
If you’re sourcing parts around the broader RF system (not just the tube), browse RF microwave parts for related components.
If your work is tied to high-power medical or accelerator-adjacent systems, you may also want to review MRI tube price options or explore LINAC parts.
For selection support, troubleshooting context, or repair pathways, connect with our RF and microwave specialists.
For broader browsing across our inventory, you can also explore the rest of the vacuum tube for sale on our site.
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