1953 SYLVANIA JHS-12AU7 Black Plate Low Noise Matching Pair Preamp Tubes
USD 50.00 USD
Specifications
| Brand | SYLVANIA |
| Type | Preamp Tubes |
| Model | 12au7 |
Rare 1953, Early Black Long Plates. listening tested for excessive noise and microphonics in a Maxi-preamp 2 tester. Test 1520/1498 & 1460/1370 where min good is 910 for gm and.
Related Items
Radio tube Sylvania ECF82/6U8A Gold Pins Tests Good /results
Vintage Lot Of Sylvania Vintage Electronic Tubes – NOS
STROBOTRON, type 631 P1, GENERAL RADIO CO. Neon Flash Tube NOS NIB🔈
6SN7 GTB SYLVANIA NOS “same date code” PLATINUM MATCHED PAIR
2 NOS TEN Fujitsu 6AU6 ~ Sony C800 C37A Altec 21 WarmAudio WA8000 EF94 6Ж4П Mics
Sylvania JAN 6922/E88CC O-Getter Mil-Spec 1971 USA Strong, Microphonic
Matched Pair Sylvania 6SN7GTB Black Plate Dome Tested Like NOS Balanced Tube
35C5 NOS/NIB Sylvania Power Output Tetrode Tube-Tested-Free Shipping in the US