Night light, Now, there is an interesting use for all the 4-65A tubes I have. Now, saying that, it seems, according to data sheets, that the 4-65A tube will produce 375 Watts PEP as class AB2 SSB amplifier. Wonder how clean it is when used that way?
73 Bill wa4lav ________________________________ From: Boatanchors <boatanchors-boun...@puck.nether.net> on behalf of Scott Johnson <scottjohns...@cox.net> Sent: Saturday, November 7, 2020 5:44 PM To: 'William Morton' <w_b_mor...@hotmail.com>; 'boatanchor' <boatanchors@puck.nether.net> Subject: Re: [Boatanchors] Question for Eimac 4-65A Tube CAUTION: External Sender It is basically a tungsten lamp with a Titanium lampshade. Go for it. Scott V. Johnson W7SVJ 5111 E. Sharon Dr. Scottsdale, AZ 85254-3636 H (602) 953-5779 C (480) 550-2358 scottjohns...@cox.net scott.john...@ieee.org -----Original Message----- From: Boatanchors <boatanchors-boun...@puck.nether.net> On Behalf Of William Morton Sent: Saturday, November 7, 2020 11:51 AM To: boatanchor <boatanchors@puck.nether.net> Subject: [Boatanchors] Question for Eimac 4-65A Tube Hello Everyone, My son and I have a question regarding firing up the filament of a 4-65A tube with no connection to the grid or plate (and no plate cap heat sink, either): If we light up the filament and leave it glowing for a long time, is there any danger to the tube? It would be akin to using it as a nightlight (which we are not). By a 'long time', let's say 5 hours. Thanks in advance for any comments. Best Regards, William, and Son _______________________________________________ Boatanchors mailing list Boatanchors@puck.nether.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fboatanchors&data=04%7C01%7Cwlfuqu00%40uky.edu%7C745bd11019f349f2b20d08d8836eb6f8%7C2b30530b69b64457b818481cb53d42ae%7C0%7C0%7C637403858823773677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=XP4Kl7nJjGYpISAq8LiKYwKG2DbioE3EuCzVp8zVxQ8%3D&reserved=0 _______________________________________________ Boatanchors mailing list Boatanchors@puck.nether.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fboatanchors&data=04%7C01%7Cwlfuqu00%40uky.edu%7C745bd11019f349f2b20d08d8836eb6f8%7C2b30530b69b64457b818481cb53d42ae%7C0%7C0%7C637403858823773677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=XP4Kl7nJjGYpISAq8LiKYwKG2DbioE3EuCzVp8zVxQ8%3D&reserved=0 _______________________________________________ Boatanchors mailing list Boatanchors@puck.nether.net https://puck.nether.net/mailman/listinfo/boatanchors