Tetrode Vacuum Tube: Beam Power Tetrode Collection

Choosing the right replacement tetrode vacuum tube is critical when you rely on consistent performance from each beam power tetrode in your system. Our carefully selected tetrodes are built to OEM-style standards, helping you maintain stable output, predictable characteristics, and long service life across demanding applications.

Whether you are replacing a single worn tube or refreshing an entire bank, our tetrode vacuum tube collection is curated to make it easier to match form factor, ratings, and performance.

Our tetrode vacuum tube lineup

Our beam power tube lineup brings together compact ceramic tetrodes, rugged power-grid designs, and classic beam configurations in one place, so you can quickly compare options without jumping between multiple suppliers.

Each tube is specified with clear electrical ratings and mechanical details, making like-for-like replacement and future planning more straightforward for engineers, technicians, and purchasing teams.

4CX15000A/8281 15 kW Radial Beam Power Tetrode
4CX350A/8321 - 350 W RADIAL BEAM POWER TETRODE TUBE
4CX350AC/8321A - 350 W Radial Beam Power Tetrode

From small chassis-mounted tubes through to larger external-anode styles, our range focuses on dependable construction, controlled tolerances, and predictable behaviour over long operating hours. We prioritise carrying the most commonly used base types and ratings in this beam tetrode family, helping you minimise downtime and avoid redesigns when original tubes become harder to source.

Contact us for all your beam tetrode tube needs

If you are maintaining systems that depend on precise beam tetrode performance, our team can help match you to the right part number, configuration, and rating.

We also support OEMs and service companies looking for replacement Bystronic consumables and compatible tetrodes across their installed base. Penta Labs manufactures high-quality replacement tetrodes for well-known brands such as Eimac, while clearly identifying our products as aftermarket solutions rather than original factory tubes, so you know exactly what you are installing.

Whether you are browsing our radio tubes for sale, exploring hifi vacuum tubes, or checking options for CO2 laser tube replacement, you can count on consistent build quality and tightly controlled specifications.

Working with a single specialist source simplifies documentation, purchasing, and long-term support, especially when you are standardising across multiple systems or locations. Our team can also coordinate future orders or scheduled replacements, so you always have critical tubes on the shelf before maintenance windows or planned upgrades.

Not sure which beam power tetrode you need?

If you are uncertain which tetrodes will correctly replace an existing part, or you do not see your exact model listed, our engineering support team can usually help cross-reference specifications and suggest suitable alternatives.

We routinely assist customers who are working with obsolete part numbers, incomplete labels, or mixed fleets of equipment that need a coherent replacement plan.

As experienced vacuum tube dealers, we work with technicians and purchasing teams every day to identify compatible options, review data sheets, and avoid costly guesswork. Rather than guessing at a near match, you can lean on our experience with legacy broadcast, communications, and industrial platforms, reducing the risk of damaging sockets, power supplies, or expensive downstream components.

Send us the information you have—such as photos, nameplate details, or previous invoices—and we will help you narrow down the correct tetrode vacuum tube so you can move ahead with confidence.

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