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W2JI
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Post subject: Military SG-377A/URM-127A Signal Generator Manual Needed Posted: May Tue 17, 2022 12:36 am |
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Joined: Feb Fri 10, 2012 11:44 pm Posts: 362 Location: Islip, Long Island, NY
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Greetings to the forum. I working on a Military SG-377A/URM-127A Signal Generator and I could use a schematic or the manual. I'm pretty sure its the TM 11-6625-2725-14 military manual. Keep in mind this is the "A" version. Its not the same as the earlier units. This generator does not have the frequency meter. I have the earlier manual not the same. This looks to be built in the 1980's. Let me know what you have. Thanks. Jerry W2JI
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SG-377A URM-127A Signal Generator.jpg [ 197.23 KiB | Viewed 339 times ]
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bob91343
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Post subject: Re: Military SG-377A/URM-127A Signal Generator Manual Needed Posted: May Tue 17, 2022 12:51 am |
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Joined: Jan Tue 10, 2012 7:39 am Posts: 3273
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That resembles some of the early HP audio oscillators. A few of them had meters and I am guessing this one is solid state due to its size. It's like the old tube unit HP650A but that one goes to 10 MHz.
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CurtisL
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Post subject: Re: Military SG-377A/URM-127A Signal Generator Manual Needed Posted: May Tue 17, 2022 10:01 pm |
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Joined: Feb Fri 22, 2008 2:28 am Posts: 642
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Fair Radio has the "A" manual for sale for $21 it appears. This is the first "A" version I've seen a picture of, and I've never seen one surplus. The 127 (non-A) is fairly common.
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W2JI
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Post subject: Re: Military SG-377A/URM-127A Signal Generator Manual Needed Posted: May Sun 22, 2022 1:18 pm |
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Joined: Feb Fri 10, 2012 11:44 pm Posts: 362 Location: Islip, Long Island, NY
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Thanks for the response. The signal generator has been repaired using information from the early manual. I'd would like to get a copy of the A version. Thanks. Jerry W2JI
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