Date code1G3 indicates year code 1, month G, week 3 — likely early 1960s Heerlen production. Reference AVO data for E80CC gives6.3V heater, Va 250V, Vg1 -5.5V, Ia 6...
NOS Pair Raytheon 2051 Tubes Silver Plate Balanced/HICKOCK
Reference tube is tested first then the tube listed for sale.
Triplett tests rectifiers under load (the best test) & indicates whether they test correctly or not - no GM on rectifiers. Test results given are from the 1000 scale...
These tubes have been tested on a TV7 tube tester with all shorts tested. Part Number: 12AU7. Tested values.
Reference tube is tested first then the tube listed for sale. Test procedure.
Reference tube is tested first then the tube listed for sale. Test procedure.
This listing is for a balanced NOS 5963 / 12AU7 tube made by GE. Tubes test NEW 100% and passes life test. The 12AU7 is a medium mu multi-purpose...
New In Factory Box Mullard 12AX7 Reissue Long Plate Preamp Vacuum Tube Maxi-Preamp 2 and Hickok Tested. Closely balanced sides within 1% for gain! Tube in test photos is...