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A copy of Denco Technical Bulletin DTB 4.

Denco DTB 4 Technical Bulletin. Front page.


The first 14 pages are devoted to using the Denco Transistor Tuning coils.
The next section is about using the Miniture Dual Purpose coils. It covers the use of the coils and gives designs for a General Purpose Superhet. A VHF Converter. TRF Receiver Circuit. A One Valve Battery Receiver and a Portable 3 valve receiver. A simple Signal Generator. A mains powered 3 Valve Receiver. A Beginners 1 Valve Receiver with build instructions. A Crystal Filter Circuit.

With thanks to Peter Lord who kindly supplied a copy of the bulletin.
If you would prefer a a PDF version. Guy (ON5FM) has kindly tidied the pages up and converted the document into the PDF format so that you can download the complete document in one go.DencoTechnical Bulletin DTB4. PDF Download


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Last updated 18.11.2007


2003-2007 © Maurice Woodhead