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David Forsyth wrote: Hi all, I recently became interested in trying to build a small two-tube regen type receiver for broadcast and/or shortwave reception. I designed a simple chassis based on some vintage articles on the subject. This is the classic 'metal box with attched front faceplate' design. I was going to use cold-rolled steel since we have this at work and spot weld the face to the main chassis, but then I got to thinking that perhaps the steel might interfere with the coils. Nothing wrong with steel. Altoid mint tin-plated steel boxes are very popular for QRP projects, and tin-plated boxes are often used for screening on commercial RF PCBs. 73, Leon |
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