7dxnotbk

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7DXnotbk	About his notebooks

	Earliest - labelled
			   T.Watkins   Electrician   Hobart   XZK
		   all in different inks
		   he had the habit of putting an oblique stroke through his s's
		   Did he hold the licence XZK or was this wishful thinking?
		Contents -
		   Book titles and prices
			Diseases of Electrical Machinery he owned, published in
			1917   therefore notes later than this
		   Spark transmitter ranges
		   Notes for electrical course?
		   Station call signs - ship and land
		   Loose coupled tuner tappings colour code
		   Marconi-Telefunken School of Radiotelegraphy address
			[theres a letter from them to ???? dated 1916]
		   Spark tx, crystal and valve rx ccts (no regeneration)
		   Valve cct with regeneration and grid leak
		   Loose coupler info for 2500 metres
		   Valve cct from Work p372 No 1637 [mid 1922]
		   ATI info (aerial tuning inductance?) 8"x3" & 3'x6" (!!!)
		   Call signs including Tasmanians XZA - XZQ