4 Philco Number / Type 41 #41 Vacuum Tubes Valves Clear Bottle Lot Of Four

4 Philco Number / Type 41 #41 Vacuum Tubes Valves Clear Bottle Lot Of FourThese four Philco clear bottle type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 42, 56, 58 and 60 where minimum (65%) is 40 and 100% is 62. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE

This softcover book is in very-good condition

nearly-perfectly-matched pair of JJ 6V6S output tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

new in box RCA 1C5GT tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube Two tested 24

forward sound with great bass articulation as well

(New 6SN7s typically test within a standard deviation of 2600 micromhos

EIA Factory Codes: RCA livery

gas and transconductance on our Paul Hart-calibrated TV7/U and measured as follows:

TUBES ARE GUARANTEED GOOD ON SHIPMENT

This Korean War-vintage tube has US Army Signal Corps SC 402 contract codes and 1-44 date codes

copper support rods and gray plates

Tube One drew 23