Matched Pair / U50 5Y3G Vacuum Tubes – Professionally Tested. Strong, closely balanced pair. Tube 1: 60/62. Tube 2: 60/63. These tubes test strong and well balanced, very close to new reference values.
Item Tag: Marconi
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1 NOS NIB 5R4GY / CV717 MARCONI TUBE RECTIFIER VINTAGE POWER AMPLIFIER STEREO
It is in good condition. The characteristics are as shown in the picture. But make sure that I will check and send you good quality products.
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vintage Marconi Valve Tube X81, FREE 2-3 Day Ship!!! Pre-owned
If any accessory is not listed or shown in pictures, it will NOT be included.
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Pair of Marconi 12AX7 ECC83 Silver Plate Vacuum Tubes
Scarce pair of Spanish Marconi 12AX7 silver plate tubes. Very similar in construction to the more common Mazda silver plates. Slotted design, disc getters. Test results as shown in the table below from the Amplitrex AT1000.
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Pair Marconi 5814 Bent [] Getter Silver Plate Tabs Pewter Black Plates
The product is a pair of vintage Marconi 5814 vacuum tubes with bent getter and silver plate tabs. These tubes tube TESTED with tester where is70 considered good or nos tube 1 80/82 tube2 78/82 please view all pictures closely before buying pictures also part of describe item condition please have any questions before
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Marconi Silver Plate ECC83 12AX7 Tube Tested EX+ Gm/Emissions E83CC Like Mazda
This tube looks new but the fragile white print has been rubbed off. It tests excellent and perfectly balanced on both triodes for Gm & Emissions. TV7-D/U Gm test results 45/45 where minimum/good is 32 B&K 606 Emissions test results = 101/101 See photos for description and test results.