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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/V5S7S3DFILHDNQL56B5J5L2SI4QBNXGV/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "000a01ca8fec$443eca60$0200a8c0@Tanguray",
    "message_id_hash": "V5S7S3DFILHDNQL56B5J5L2SI4QBNXGV",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/UR3OBVO7TZ3QPE6TU7YBPUGJGALK7TFT/?format=api",
    "sender": {
        "address": "rogerkola (a) aol.com",
        "mailman_id": "8323dbe496014835b5bd2be9b5ff6f66",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/8323dbe496014835b5bd2be9b5ff6f66/emails/?format=api"
    },
    "sender_name": "Roger Kolakowski",
    "subject": "[amsat-bb] Re: Winter Project",
    "date": "2010-01-07T22:53:42Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PKWYBEVNUJ5RLLGLDTORLZK76G5MTQCT/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\"...I'm looking for a winter project can any one point me in the direction\nof a 2 meter tube amp nothing crazy about 25-50 out, 1-10 in. I have never\nused or played with a tube circuit so i thougt winter why not...\"\n\nI believe the power supply will be your biggest obsticle...in the \"old\ndays,\" \"suitable\" transformers were found in every TV set (sometimes you had\nto use 2  ;-)\n\nWith everything now solid state, and the surplus market for higher voltage\nstuff shrinking, your power supply will probably cost more than the\namp...unless you can grab one from someone else's abandoned project. Your\noutput requirements are quite conservative so that may be a less costly\nsolution.\n\nRoger\nWA1KAT\n\n\n----- Original Message -----\nFrom: \"wrb\" <[email protected]>\nTo: <[email protected]>\nCc: <[email protected]>\nSent: Thursday, January 07, 2010 11:28 AM\nSubject: [amsat-bb] Re: Winter Project\n\n\n> I would try to locate old QSTs or Amateur Radio Handbooks that contained\n> such circuits. Tubes such as 6146, 829, etc. were good candidates. Also\n> the 4x/4CX150 would give up to 100+ out with just a few watts in. Newer\n> handbooks or magazines still provide you with he necessary theory to\n> build one from scratch. Building a tube amp is quite simple, just need\n> to have 300 - 1000 volts dc supply based on tube and power out. Also,\n> usually a 6.3vc transformer for filaments. Nothing wrong with tube amps.\n> I have an old Johnson 6n2 unit that runs about 150 watts. Neat old rig.\n> Find an old rig as I mentioned above and go online to the various manual\n> websites and obtain the manual for an old rig. You can use that as your\n> example.\n>\n> Reid, W4UPD\n>\n>\n> Douglas Anoman wrote:\n> > I'm looking for a winter project can any one point me in the direction\nof a 2 meter tube amp nothing crazy about 25-50 out, 1-10 in. I have never\nused or played with a tube circuit so i thougt winter why not. Thanks 73\n> >\n> > Thank You\n> > Douglas Anoman\n> > KC9MLN\n> > [email protected]\n> > Amsat #37043\n\n",
    "attachments": []
}