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Inspired by earlier work on inexpensive spin echo generator circuit boards, the board uses low\u2010cost digital timing circuits for pulse generation and mixers for RF pulse gating, without requiring a computer. It produces a simple rectangular excitation pulse followed by a refocusing pulse, with user\u2010adjustable pulse widths, TE, and TR delays. The board features an integrated T\/R switch, pre\u2010amplifier, and an onboard 9\u2010V battery holder for standalone operation. External requirements include only a synthesizer, RF power amplifier, oscilloscope for display, and a tuned RF coil placed within a magnet. The hands\u2010on platform and real\u2010time feedback support practical applications, such as verifying signal generation and coil performance. In an educational setting, the board enables students to explore how variations in timing parameters influence MR signal behavior. It provides a transparent learning environment in which students can investigate fundamental MRI concepts, including flip angle, resonance, and T\n                    <jats:sub>2<\/jats:sub>\n                    relaxation, through direct experimentation. Functionality is demonstrated on a 0.5\u2010T tabletop magnet and 0.1\u2010T whole\u2010body MRI scanner.\n                  <\/jats:p>","DOI":"10.1002\/nbm.70419","type":"journal-article","created":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T04:39:12Z","timestamp":1791347952000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Low\u2010Cost, Computer\u2010Free Spin Echo Generator Board"],"prefix":"10.1002","volume":"39","author":[{"given":"Helina K.","family":"Wilson","sequence":"first","affiliation":[{"name":"Department of Biomedical Engineering Case Western Reserve University  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4288-4206","authenticated-orcid":false,"given":"Christopher E.","family":"Vaughn","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering Case Western Reserve University  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-5564-1845","authenticated-orcid":false,"given":"Antonio","family":"Glenn","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering Case Western Reserve University  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4659-9883","authenticated-orcid":false,"given":"Jessie E. 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T.Jr.Vaughan andS.Geethanath \u201cVirtual Scanner Games: Expanding Access to Magnetic Resonance (MR) Education Through Interactive Web Tutorials \u201d arXiv [Preprint] 2023 arXiv:2304.05582 https:\/\/doi.org\/10.48550\/arXiv.2304.05582.","DOI":"10.1002\/nbm.5109"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmir.2017.01.002"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmr.2016.06.023"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/cmr.b.21401"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmr.2023.107424"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.30406"},{"key":"e_1_2_10_13_1","unstructured":"S. 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