ONE(1) TV7D/U Test Good Gm&mA 1944 Tung-Sol 45 TRIODE Silver Foil Getter Tube

Description: ONE (1) Vacuum Tube, RE-TESTED at NOS/NIB levels. TESTED Strong Gm & mA TUNG-SOL Type 45 Triode (ST-14 Glass Shoulder Bottle Shaped) Triode Power Tube. Date coded: Silver colored Hot ink stamped of "4" on black Phenolic base (1944) with "Tung-Sol" "Made in U.S.A. - Glass is etched "45" inside an Octangle Stop Sign with Line breaks- Dark welded Plates- Silver Foil 6-sided with Dimple bottom Getter with 40-50% bottom sides circular flashing- 2 thin spring Hanging 'VV' filaments with Thick heavy Rods supporting Oval shaped Wafer/Spacer- 2 Thin Rectangle Top-Side Wings Condition: Lightly Used, Tested Good with Life. Re-Tested against TUNG-SOL 45 FACTORY DATA SHEET with a Dan Nelson Freshly CALIBRATED( 7/24/23) TV7D/U. Tight Bases, Clean Pins, locator and Glass, Plug-in and play-listen condition. A printed copy of this description including test results will be included in the box shipped. TV7D/U Test Results: NO SHORTS, NO LEAKAGE, NO GAS, NO Apparent Micro phonics, Calibrated TV7D/U Tested (providence is in pics listed) Tube type 45 (inked "4") : Tested at : 69.5 /47 = 1,772.5 uMhos (Gm) at la=27.0mA Plate Current emissions(when tested at 150VDC Plate Supply Voltage.) Minimum Good 60-65% tube life = TV7 meter reading of 47 = 1,175 uMhos Gm 'Bogey' = Tung-Sol data sheet spec(see Pics of data sheet) dated Oct 1, 1938 states Average Factory new depends upon Plate Supply Voltage VDC. (Note all Version of TV7s test at a Maximum of 150VDC Plate Supply Voltage and 135V for Screen/Grid Volts Single Tube in Class A1 Amplifier: when tested at Plate Supply Voltage 180VDC 250VDC 275VDC (max) Gm in uMhos 2,125 2,175 2,050 Plate Current 31.0 34.0 36.0 Our test set: Tested on a TV7D/U Dan Nelsen Fully Restored, Upgraded & Calibrated (07/24/2023) with Digital Meter which tests Transconductance (Gm) and mA Plate Current readings. We use Nolan Lee's last published industry standard TV7 meter readings of (0-120) to translate into uMhos Transconductance (Gm) readings of individual TV7 selector setting (A-E). WE PACK VERY WELL AND SHIP FAST (within 24 hours), Many Years of Exp. Shipping Fragile Vintage Electronics, Speakers and Vacuum Tubes. USA Shipping: Safe, Reliable Low cost USPS Advantage ground (1st class) shipping with Tracking, 2-6 day delivery, Ships from South Florida International shipping: Low-Cost via new eBay International, space available Air-Freight Container - Low Cost Insured with Tracking allow 10-45 days to receive the well packed box. If your country is in the drop-down box under the shipping tab then WE SHIP! eBay allows Us to COMBINE Shipping on Domestic USA ONLY Shipments. We rebate any overages paid on shipping costssame day as payment is cleared. *****IMPORTANT for INTERNATIONAL BUYERS, PLEASE CONTACT US BEFORE YOU "BUY IT NOW" for MULTIPLE TUBE PURCHASES BECAUSE WE WILL NEED TO MAKE A SPECIAL EBAY LISTING FOR YOU WITH ALL THE ITEMS YOU WANT COMBINED INTO ONE BOX. EBAYINTERNATIONAL CURRENTLY DOES NOT ALLOW COMBINED SHIPPING ON MULTIPLE PURCHASES AFTER "Buy it Now" AND WILL CHARGE YOU FOR MULTIPLE BOXES SHIPPED *********

Price: 44.95 USD

Location: Miami, Florida

End Time: 2023-12-20T20:40:35.000Z

Shipping Cost: N/A USD