4 US-Made Number / Type 77 #77 Vacuum Tubes Bell Plate Variety Lot Of Four 6DW4 T32 5 volts with adapters (not

5 volts with adapters (not included) and they sound tremendous even though they are running with a lowered filament voltage

3 milliamps' plate current while Tube Two drew 23

This hard cover book is in good condition

Tube One measured 74/76 while Tube Two measured 76/76

This watch must be serviced

4 US-Made Number / Type 77 #77 Vacuum Tubes Bell Plate Variety Lot Of Four 6DW4 T32 5 volts with adapters (notThese four US made belll plate number type 77 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. They tested (from left to right) 36, 38, 42 and 42 where minimum (65%) is 31. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY