SKU:77584463398
10 Philco Number / Type 41 #41 Vacuum Tubes Engraved / Hot-Stamped Bases Lot Of Ten
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Description
10 Philco Number / Type 41 #41 Vacuum Tubes Engraved / Hot-Stamped Bases Lot Of TenThese ten Philco engraved hot stamped base type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 52, 54, 54, 54 54, 54, 55, 58, 58 and 62 where minimum (65%) is 40 and 100% is 62.
Transconductance measured 76/69 for Tube One and 77/74 for Tube Two
that incredible Sylvania flashing and 312339 and 312 5522 date codes
39 and 42 where minimum (65%) is 31 and 100% is 48
Tube One: 71/69 and
It measured 38/34 where minimum (65%) is 40/40 and 100% is 62/62
bayonet-base sockets
There were no playback issues
flared bases
not included) and Tubes Two and Three sounded excellent and should work fine as a stereo pair in an amp in which each tube is biased separately
This hardcover book is in very good condition and comes from a non-smoking household
This perfectly-matched pair of Ken-Rad 6SL7GT dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts
I added a drop of Loctite glass glue
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