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Manufactures a series of vacuum tube audio amplifiers based on impedance converter that replaces the traditional audio-output transformer. Italy.
Suppliers of tested, graded and guaranteed valves to the professional music industry. UK.
Transformers power supplies and related equipment for audio equipment. Also EL inverters and magnetron transformers. UK.
Distributor of tube and related products to design and build custom amplifiers and systems.
Manufacturer and distributor of vacuum tubes and capacitors for audio, broadcast and military applications.
Supplier of audio parts and DIY kits. Taiwan.
Devoted to vacuum tubes world applied to audio science. Consulting, design and engineering in audio. Power amplifiers and Hi-End products.
Manufacturers of vacuum tubes such as NOS Tungsram audio tubes.
Manufacturers of tubes, capacitors for high-end audio amplifiers. Base in Slovak republic and Canada.
Provides information about electron tubes products, support, distributor addresses, datasheets and sells tubes parts.
Digital tube testers for matching and testing power pentode vacuum tubes used in musical equipment amplifiers.