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Watford Valves have been using valve equipment since 1976 and has been selecting and supplying valve to the professional market for over 20 years. The term 'new old stock' refers to tubes or valves which are new but are from factories which have long closed down. These factories such as Mullard, G.E.C, Telefunken, Siemens, Philips, General Electric and R.C.A produced some of the best valves ever made which is why these items have become very sought after in the music industry. Watford Valves keeps a huge inventory of new old stock tubes valves as well as current production items. Therefore Watford Valves can offer one stop shopping to satisfy the most demanding of needs of the professional market, the collector or the enthusiast. All output tubes valves are priced individually. All prices contained on this web site are exclusive of VAT.
Tesla started production in 1922 under its original name of Radioslavia Ltd in Czechoslovakia. It has a long history of manufacturing high quality transmitting valves and defense equipment. The Tesla factory was known for making some outstanding valves. The Original EL34 better in terms of microphonics and reliability than the famous Mullard EL34, hence Marshall used the Tesla EL34 from the mid 1970’s onwards. The frame grid E83CC was due to its construction the most expensive of it type to produce. Still to this day it is one of the best sounding ECC83/12AX7 types ever made. These are just a few of an endless list of pioneering valves produced by this great Czechoslovakian factory that sadly is no longer with us.
- NameBrandCommentStockPrice PhotoOrder
- EB91/ EAA91/ 6AL5-TESLATeslaThe EAA91 is a double signal diode which is also known as 6AL5, CV4025 and EB91.The AA indicates two diodes with ...In stock£4.00
Buy Now - 6AQ5A/ 6L31-TESLATeslaOriginal Tesla 6AQ5 EL90 with the 6L31 numbering in yellow print. This small beam tetrode was used in the audio ...In stock£6.00
Buy Now - 6X4/ EZ90/ 6Z31-TESLATeslaVery high quality original Czech made Tesla 6X4 EZ90 with the original 6Z31 markings.These date from 1972 and were ...In stock£10.75
Buy Now - ECL85/ ECL805-TESLATeslaThe Tesla ECL805 is an improved version of the ECL85 and these were made at the Zavod Trintec factory and have the ...In stock£15.00Buy Now
- EF86-TESLATeslaThe Original TESLA factory produced one of the best sounding NOS EF86 and they were made made in Tesla Plant in ...In stock£20.00
Buy Now - EZ81-TESLATeslaOriginal Tesla EZ81 Rectifier is a very high quality rectifier valve item with long life expectancy. The valve features ...In stock£20.00
Buy Now - EF86/ EF806S-TESLA WHITE LOGOTeslaThese original Tesla EF806S are the ultimate EF86 for use in tube microphones or critical audio and guitar amplifier ...In stock£30.00
Buy Now - ECC83/ E83CC-JJ TESLA FG MATCHED PAIRSTeslaFrame Grid
Matched Pairs
The JJ E83CC is a new valve that uses the unique frame grid of the famous Czech ...In stock£32.00
Buy Now - EL34-TESLA ORIGINALTeslaThis is the original Tesla EL34 that was made famous when Marshall switched from using the Mullard EL34 to the Tesla in ...In stock£95.00
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