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Search results

  1. M

    Sams PhotoFacts Collection

    I haven't read through the whole thread but, you can download these pictures on a thumb drive and take them to an Office Depot type of site and have them printed out. Some of the places have non standard sized (large) printers to use on the schematics. In my experience using the Sams the paper...
  2. M

    Sams PhotoFacts Collection

    It is .org not .com
  3. M

    Gatekeeper

    What parts are you looking for? I have three Texas Star 667 in the parts room. Monk
  4. M

    Golden Falcon Model 400

    Before tossing it put it on ebay or facebook market place. Someone will have a use for it. Amateur use qrp 10 meter to the 200 watt tech limit. Bypass the two driver tubes. Many early ARRL sweep tube amps in 70~80's handbooks. Add a band switch, tank circuits and go... I'll pay shipping to...
  5. M

    mr jiggs ping plus door bell

    BC, You could buy them all as a per-emptive strike against noise toys...........
  6. M

    In search of ranger 2 pill amp section

    Dave Eldorado, I think I have one around here on the heat sink. I will have to dig through the "storage room-half the house and shed". I will get back to you. Did you ever live in Phoenix and move furniture for a living? I worked with a guy with the same name you posted...
  7. M

    In search of ranger 2 pill amp section

    I had mobile 12 nominal in mind, Volt that final!
  8. M

    HAM/CB operators ... how old are you?

    I think the younger people are jaded as they never had the THRILL of getting a pair of walkies-talkies on Christmas day 1960 and being able to talk to a friend without a string between two tin cans....even at night after being told to put those da**ed things away. Kind of an infection that...
  9. M

    In search of Factory Service manuals.

    Naysayer, I have a copy too along with one or two of the printed circuit boards along with input and output transformers, new 2290's....MRF421/NTE cross yeah the whole shooting match all but the desire to put it together. Could be talked out of I$t
  10. M

    Wanted

    Tubes on their sides. Had a friend that was tough on amps. He had a Heathkit SB200 using 572b tubes that are mounted on the flat side. He was going through the cheap Chinese 572 tubes. I told him to turn the amp on it's side to lessen the grid droop/shorts, molten plates....It helped a bit but...
  11. M

    WANTED: 1 KW ( or larger) OIL-FILLED DUMMY LOAD

    In years past I read an article on how to build a dummy load using salt water as the coolant/load. Do a search it is out there.
  12. M

    SBE SB2LA Amp Filament Transformer

    Have you considered 6 31lq6 three in series X2 across the 120 v AC input. No filament transformer needed.
  13. M

    SBE SB2LA Amp Filament Transformer

    Is that the stock SBE transformer? Or, just the one that was in there and failed? Have you checked the load voltage? Tubes don't have to run at exact voltage to work. $30 isn't so much anymore... RF Parts twice the price https://www.rfparts.com/166r12.html More than one way to mount a transformer.
  14. M

    Palomar 310m Lesson forgot learned again.

    I've got decades of old cb radio gear stacked around my place. Had a friend looking for a mobile tube rig. I told him I knew I had a good working/looking Palomar 310m, basically a 12 volt skipper 300. I dug it out and reading my info sticker on it, said: Works great, pre amp too, 3~400 out...
  15. M

    In search of ranger 2 pill amp section

    Add one of those buck/boost boards off of ebay for the amp finals to get the voltage up closer to 50 volts. I don't know if they are RF quiet or would have to be filtered and outside the case.https://www.ebay.com/itm/335210323169 400W DC-DC Step Up Boost Buck Voltage Converter High Power Supply...
  16. M

    Texas Star DX 400 Input SWR

    Don't use the 91% it will remove the labeling printed on the board for the components. Don't ask me how I know......... Monk
  17. M

    Maco 300 gets 47-year tuneup.

    shockwave, I did the same by building single tube amps for 811-572 tubes and also for 3-500z,400z, 4-400, 4-250, 4-125 Variac on the plate transformers to "Bring them up slowly". Monkradio
  18. M

    Maco 300 gets 47-year tuneup.

    Nomadradio, An edit is in order. Sorry not nit picking but......... The new plate choke occupies the center of the four driver tubes. You did mean "Driven tubes" not driver tubes, right? Monkradio
  19. M

    Maco 300 gets 47-year tuneup.

  20. M

    The 811A tube in its native condition. Blown to Hades.

    To the old timers, raising a 807 to all that have gone on to better futures.