Crystal detector you can build at home for radio
An old article explains a simple crystal detector using silicon or galena, a metal button, binding posts, and a copper or brass strip. It describes mounting on stained wood, wiring to a tuner and ground, and notes this compact unit helps with adjustments. It covers listen in tips, first-time setup around KDKA, and costs for components and receivers.
MENTIONED IN THIS ARTICLE
Kdka Iy
Murdoch
Primitive radio building tips from an early manual
Practical guidance for home radio construction describes using 22 caliber shells as switch points, a 100 to 150 foot aerial for local and long distance reception, and copper or phosphor bronze wire. It covers methods to avoid crossing power lines, improvised crystal detectors with galena, cartridge shell detector cups, and windings with prepared oatmeal tube cores.
VAGARIES OF VACUUM TUBES IN DAILY USE
Readers relate odd tube behavior causing fright and wonder. An auntie of an infant recalls a new device emitting eerie sounds and sudden motion as it neared the spill point, prompting a jump and retreat. Other accounts mention bulbs releasing multihued vapors in vacuum chambers.
Moonshiners Use Radio To Evade Revenue Raids
Revenue officers pursue distillers of white lightnin in Kentucky mountains amid raids. Moonshiners adopt radiophone to spread tension and hinder enforcement, with several recent attempts failing.
MENTIONED IN THIS ARTICLE
Kentucky
Cafeteria plan gains in favor and hogging down revived
United States Department of Agriculture discusses the cafeteria plan for feeding hogs in cornfields and rotating crops. It explains five year rotation, temporary fencing, supplementary crops, rye pastures, and timed hogging down to improve manure distribution and ground conditions while boosting weight gain.
MENTIONED IN THIS ARTICLE
United Sates Department of Agriculture
Menntine
United States Department of Agriculture
Ward County Independent showcases up to date printing plant
The Ward County Independent highlights its modern equipment including the Premier White lock cylinder press, Miller automatic feeder, How Miller Baw Trimmer, Portland Punching Machine, Boston stitcher, and Rosback Perforator. It notes high capacity for book and catalog work, reduced press costs, and readiness to handle top quality jobs for Minot and beyond.
MENTIONED IN THIS ARTICLE
Ward County
Miller
The
Independent
Minotu
Portland
Boston
Also Mentioned on This Page
Groune
TEL. Aetever
Corn Belt
Huggins
Keepa
le Khopa
Minot
Babcock News Press
Brown-Tribune
Rosback
Whitlock Printing Press
Portland Punch