VK7 Centenary Documents

7RY

VK7RO MaterialTextHISTORICVk7s

Recognised text

Text below was produced by optical character recognition and may contain errors. Check it against the original.

Transcript of taped interview with Edgar Nicholls VK7RY 12/6/1993

Born in Traralgon Vic 3/6/1910 moved to Devonport 8 months old father music teacher
Bridge across river at Devonport many potato trucks steam lorry broke wooden bridge about 1920
Heard wireless Lon Jensen lived in Devonport then moved to Burnie and set up his broadcast station there
Family had 4 valve receiver   Atwater Kent had many dials
My brother (an electrician) made receiver ganged tuning listened to 3LO and 3AR about 1922???
2FC on LF 
Lon Jensen had set up at Devonport high school listened to Melba? through static
plug in coils so could use LF or MF
later built receiver myself and heard Lon on 30M about 1924/5 detector and 2 audio
brother built a number of receivers and sold them (he'll be 88 in August)
Amateur licence in 1932 receivers before that 4V filaments put HT on filament!!!
crystal osc 1315Kc near 3XY only allowed on broadcast band if had a crystal
B406 and PX4 in final  - did not go on short wave at first 66 foot flat-top open wire feeders
hot wire ammeter in feeders modulated Heising brother wound filter chokes 
4 watts input 
Devonport b'cast mostly  8.30 to 10   got on shortwave in Burnie
bcast 8.30 till 10
radio inspector visited in Burnie once
Exam theory read ARRL book   2 goes at exam   Dport 40M worked first USA stn  great kick
crystal control on 40 in Burnie crystals home ground spectacle lens in Prahan old specs cost 1 shilling each took hours to weeks!!   can test crystal by putting it in coil of oscillating receiver
PMG in Burnie they moved me to 7ZL in 1941
started 5.30 am in switchroom test all lines daily measure resistance
disc recorders 16� disk 
tape recorder one sided reel sticky taped mess
only morse on shortwave voice later to Burnie in 1934 used same transmitter as on Bcast band � plug in coils
7RO saw photo of original 7ZL transmitter 3 big valves one oscillator two in modulator
radio inspector had not been issued with wavemeter

tea of coffee

in Burnie sid medford, hancock, ellis, kb died LJ left Burnie Lon was on broadcast band
Jim Davis
Wooden rack mounted transmitter screw in wood earthed removed hum
WW2 gear in locked tin box
lived in Lenah Valley 21 Haig St where Bob Reid lives now
Windom antenna then moved to 22 Haig St 415 pounds
6' deep 2' wide foundation ditches   concrete blocks 18x6x4
garage under house also shack  new tx after war trf rx disposals PMG too 1852s etc

VK7RY 8 Garden Lane Midway Point been here 23 years 5 deg 7 am 12 June 1993

joined wia when got license   no meetings in devonport

institute met in liverpool st then over odeon
1950 gear crystal osc   couldn't get stable vfo   multipliers   20-30W final 807
windom antenna   mainly morse
bought FT101 for ssb about 1960???  
warc bands bought ft101z   added digital readout