Up for sale : Direct replacement for 845 VERY RARE TO FIND ONE IN THIS NEW CONDITION *POWER TRIODE TUBERARE BRASS BASE 938 TUBE MADE WITH LARGE FOIL GETTER . THIS TUBE IS WORKING EXCELLENT AND IN BEAUTIFUL SHAPE . VERY CLEAN WITH CLEAR GLASS THE 938 / 838 TUBE IS VERY CLOSE TO THE TYPE 845 TUBE FAMILY . NOT THE EXACT SAME , BUT PRETTY CLOSE . Rare to find one of these with a brass base & the logos on Glass THIS TUBE TESTED STRONG NO LEAKS NO SHORTS AND A VERY STRONG LIFE TEST YOU GET THE TUBE YOU SEE IN THE PHOTOS FOR THE PRICE .

Tested NOS Type 45 Tube/ValveTested with CT-160 AVOIa =34mA gm=2.1mA/Volt1940s Engraved Base 4 Pin

ONE (1) Vacuum Tube, TUNG-SOL Type 45 Triode (ST-14 Bottle Shaped) Power Tube, Date Coded 322913 (13th week 1949/59) Condition: Used, Tested still Good with some Life. Clean Pins and Glass, Plug-in and play condition TV7 Test Results: NO SHORTS, NO LEAKAGE, NO GAS, NO Apparent Microphonics, Calibrated TV7 Tested at 53.8=1,430 uMhos (Gm) at 21.2 mA Anode Plate Current when tested at 150VDC Plate Supply Voltage.About 72% Gm life Minimum Good 60% 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: Plate Supply Voltage 180VDC 250VDC 275VDC (max) Transconductance( Gm in uMhos ) 2,125 2,175 2,050Ia = Plate Current( mA ) 31.0 34.0 36.0 Our test set: Tested on a TV7A/U Dan Nelsen Fully Restored, Upgraded & Calibrated (11/11/2021) with Digital Meter which tests Transconductance (Gm) and mA Plate Current readings. We use Nolan Lees last published industry standard TV7 meter readings of (0-120) to translate into uMhos Transconductance (Gm) readings of individual TV7 selector setting (A-E). Shipping: We combine shipping, Add all items to the cart, buy it now, but do not pay, REQUEST AN INVOICEwe will combine shipping in one order! and then send you the discount on the combined shipping, then you can pay. WE PACK VERY WELL AND SHIP FAST (within 24 hours), Many Years of Exp. Shipping FragileVintage Electronics, Speakers and Vacuum Tubes. USA Shipping: Safe, Reliable Low cost USPS 1st class shipping with Tracking, 2-5days, Ships from Florida International shipping: Low-Cost via eBay International, space available Air-Freight Container - Low Cost Insured with Tracking allow 10-30 days to receive the well packed box. If your country is in the drop-down box under the shipping tab then WE SHIP!

You are bidding for 4 pieces (full quad) beautiful CRC842 DHT triodes from RCA. Tungsten filament triodes like 10, but with lower internal resistance. These are close to 50, but without grid problems. Excellent choice for low power output amplifier. Tubes were tested on Funke W19 tube tester. Test settings were 100V plate and grounded grid. Tubes showed 18.5, 18.5, 18.5, ? 19 ?? current. Check actual photos for details. Private selling. I’ll prepare good package and post worldwide, but will not assuming responsibility for tube damage during postage due age and gently specific. Payment should be done within 3 days. Bid accordingly with posted above. Contact seller for any questions. Check my other power tube auctions. Happy bidding. Dont loose opportunity.

30s Vintage Webster PP 45/245 Triode Tube Theatre Amplifier Western Electric Era. The base measures 10” wide x 16” to outer flanges at the base and 7” tall. I was only able to remove one cover over transformers, the other one has electronics covering the bottom bolt and has a good bit of rust on the screws. I ship worldwide via eBay’s global shipping program and I will pack this well for you

Pair 1930s Vintage 45/245 Triode Tube Audio Amplifier RCA Western Electric Era. Item is untested. I would say it’s a parts set. No bottom covers, what you see in the pictures it what you get. I don’t know much about these old amps, please look at pictures and don’t hesitate to ask any questions. Will try to answer them for you the best that I can. This will be a no Reserve auction so starting the bidding at $9.99. Each I tem measures about 9-1/2” X 8-1/2” X about 8-3/4” at its highest point. Weight total for both is about 55 pounds. I will pack with the utmost care in a heavy duty box. Happy bidding. International buyers must use eBays global shipping program

30s Vintage Webster PP 45/245 Triode Tube Theatre Amplifier Western Electric Era. The base measures 10” wide x 16” to outer flanges at the base and 7” tall. I was only able to remove one cover over transformers, the other one has electronics covering the bottom bolt and has a good bit of rust on the screws. I ship worldwide via eBay’s global shipping program and I will pack this well for you

1920s RCA Single Ended 45/245 Triode Tube Amplifier Western Electric era Pair. Each chassis measures 9 1/2” x 6 1/2” and 7” tall. Your getting ONE PAIR, 2 pieces. Worldwide shipping is available and these will be packed well for you.

30s Vintage WEBSTER PP 45/245 Triode Tube Theatre Amplifier Brook RCA Era Mono. Base measures 19” x 9” deep x 8” high. I ship worldwide via eBay’s global shipping program and will pack this well for you.

You are bidding for 4 pieces (full quad) beautiful CRC842 DHT triodes from RCA. Tungsten filament triodes like 10, but with lower internal resistance. These are close to 50, but without grid problems. Excellent choice for low power output amplifier. Tubes were tested on Funke W19 tube tester. Test settings were 100V plate and grounded grid. Tubes showed 18.5, 18.5, 18.5, ? 19 ?? current. Check actual photos for details. Private selling. I’ll prepare good package and post worldwide, but will not assuming responsibility for tube damage during postage due age and gently specific. Payment should be done within 3 days. Bid accordingly with posted above. Contact seller for any questions. Check my other power tube auctions. Happy bidding. Dont loose opportunity.