I've scanned the schematics from JRC's NRD-505 Instruction Manual and posted them on my NRD-505 fanboy site under "Links and Downloads" as a PDF download.
SolderSmoke Direct Conversion Challenge: 139 Receivers Built
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Dave M6XTY
*As of September 28, 2026 1248Z*
*So far, total receivers built: 139 (131 plus 8 honorable mentions). Total
Count: 139. Receivers built in ...
2 days ago






(From 1978 WRTH)