Related to object # 467.1Cylindrical black sight with metallic fixtures. Adjustable base with screws.Side of barrel: 'E. R. WATTS & SON / LONDON / NO 19504' Under rear base mount: '2T'er watts & sons, sight, optical equipment, spectroscopy

Triangular, footed base with coiled, coated wire on adjustable stand between side of tuning fork. NOTE: HEAVY OBJECTFront of tuning fork base: '100 / V. D' Sticker on base: '1D4' Stamped on base of fork: 'GRIFFIN & TATLOCK / LONDON' Plaque on base: 'GRIFFIN & TATLOCK LTD / LONDON / GLASGOW / EDINBURGH / [griffin logo] / MANCHESTER / LIVERPOOL' Sticker on side of base: 'NAT. PHIL. LAB / NO / UNIV. OF MELB.'tuning fork, griffin & tatlock, laboratory apparatus, electromagnetic

Computer hard drive with exposed power board, circuits and interfaces. Model V.170.Label on back: 'VERTEX PERIPHERALS / MILPITAS, CA. USA / WARNING / HANDLING PROCEDURE'vertex, hard drive, v 170, computer peripherals, computer equipment, hardware, california

The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 The original X-ray tubes relied on low pressure operation. The electrons and positive ions are produced in the residual gas. Positive ions are accelerated towards the cathode and release electrons which on hitting the anode produce X-rays. These early gas X-ray tubes operated satisfactory only over a narrow pressure range. Stamped Label: “NATURAL PHILOSOPHY LABORATORY/ No/ UNIVERSITY OF MELBOURNE” Stamped: “90268 M. No. 5171[??]/No. 2156[??]/ M. No. 346585.” x-ray tubes, gas x-ray tube, laby, spectroscopy

The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 The original X-ray tubes relied on low pressure operation. The electrons and positive ions are produced in the residual gas. Positive ions are accelerated towards the cathode and release electrons which on hitting the anode produce X-rays. These early gas X-ray tubes operated satisfactory only over a narrow pressure range. Manufacturer’s mark stamped: “PATENTED/ VICTOR/ TRADEMARK/ MADE IN BOSTON U.S.A./ TUNGSTEN” A white circular stamp, stamped near the manufacturer’s mark: “[illegible]TER WIGGH[illegible]” Stamped label: “NAT. PHIL. LAB./ No./ UNIV. OF MELB.” Inscription on the end face of the copper piece: “PAT. SEP 5’ 11 DEC. 30’13/ JUNE 23, 14 NOV. 30.15/ 43835”

The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 A modern X-ray tube differs little from the original Coolidge tube. A minor modification is the rotating anode type that extends the life and increases the available power of the tube by presenting a new portion of the anode when required. “P125/20/40/NrF038803 (?) SIEMENS-REINIGER-WERRE AG ERLANGEN Eigen filleung (?) mind. 0,7 mm AL” On rotating shaft: “FO/33803” On cathode: “23C”

Machine-made/cut, appears to be lathe turned. Electroplated, no apparent decorative elements. 14 rotatable, removable nuts. Surface finish: Brushed metal. “Ratio Resistance’ Handwritten pen on paper adhered with sticky tape on top circular face. Medallion screwed to top circular face: “J.L. WILLIAM/SCIENTIFIC INSTRUMENTS/ SERIAL NO. TYPE/ MELBOURNE - AUSTRALIA.” Machine-made manufacturer’s label, enamel on brass plate (unconfirmed) screw fixed, “Resistance/between/the knobs/as shown/Resistances (+0.05 at most). Handwritten pen on aged paper label attached with coated twine.

No. of pieces: one object recessed into wooden box with detachable parts. Handmade wooden box enclosing a machine molded solid metal object. Plastic machine molded attachment. Gold electroplated metal, wax-matte hand polished wooden box, plastic has either been polished or had a varnish polish added to the surface. Detachable brass elliptical stopper, two brass butterfly screws, two hook latches attached to outside of box to secure object for transport. Polished wood surface, possibly wax coated. Brass metal coated with gold patina/electroplating. Plastic component either polished or coated with gloss varnish. Inscribed on top of the object, in the wooden box: “MICROFARAD/NALDER BROS & CO/WESTMINSTER/No 1509” Paint dot approx. 1.0cm in diameter on top face of wooden box, back edge, towards the right.

Machined, assembled, cast, moulded. Plastic possibly stamped/painted with inscription. Handwritten in what appears to be whiteout on top circular face: ½ watt. Dymo label adhered to front: PHYSICS PT2 F2 [Stamped] inscription on top: No 2470/ HARTMANN & BRAUN/ FRANKFURT ^/M /T.C.=+0,00002/10/OHM/bei 18oC. [Stamped] inscription centred on rim of top circular face in the front: 10hm=106, 3 cm/mm2 Hg. 0 oC. Medallion on top circular face: P.T.R. 38/ 1900. Handwritten on chipped paint dot on top: “2” (?)

Assembled, coated, polished. Surface finish: coating. 5/5 small circles o/ small a/ rough square imprint

Four position double pole switch. Spring has magnetic qualities (Ferrous). Machined. Surface finish: not. [Stamped] on upper face of base: W.G. PYE & COLTD./ ENGLAND/ CAMBRIDGE. Random letters appear to be painted onto the upper face of the base in black ink (?): T2A/R/T/T2B (?) PI appears to be drawn on the upper face of the base in black ink (?) partially over painted with whiteout (?)

Assembled wood, bakelite and metal (screwed). Metal plate top screwed onto wooden box base, 15 black dials 3.0cm in height. Brass electrical connectors, brass plugs with Bakelite tops. Surface finish: machined. Inscribed on top face along the back edge: “T.E.P.L MELBOURNE [an arrow pointing upwards] 240 1941” Inscribed on top face along the front edge: “EUREKA, BRITISH STANDARD OHMS” Also instructive labels inscribed on top face: “POSITIVE POLE/LINE OR EARTH” “LINE AND GALVANOMETER” “GALVANOMETER” “NEGATIVE POLE AT 15.5OCENT”

Cast in mold, machine made. Dipped coating on main body. Glass window. Surface finish: black plastic coating, glass. “X-RAY/ MILLI-AMMETER/ PATENTED AUG. 30, 1904/ VICTOR” On rim near left hand side screw there are yellow markings- one marking is in the shape of a cross and the other resembles the symbol of a fish.

Assembled, cast hand built, moulded, dove-tailed. Polished, coated, engraved burnished, stencil. Accessories: dials, labels, screws. Surface finish: coated, polished. Inscribed on upper face along back edge: “T.E.P.L. MELBOURNE [arrow] 298 1941” Inscribed on upper face along front edge: “EUREKA BRITISH STANDARD OHMS” Labels Inscribed on upper face: “POSTIVE POLE/LINE OR EARTH” “LINE AND/GALVANOMETER” “GALVANOMETER” “NEGATIVE POLE/AT 15.5oCENT”

Assembled, hand built, cast, forged, moulded. Coated, polished, printed, incised, burnished. Surface finish: coated, polished. Inscribed on upper face: “Hartmann & Braun A.G./ Frankfurt a.M./ No 13882” Label adhered to upper face in front left corner: “Part 2-W B 4” On base (stamped in ink): “24 JULL 1929” Inscribed into the underside, wooden base: \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"774 X\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"

Cast, assembled. Varnished. Accessories: paper label in plastic sleeve screwed to top. Surface finish: varnished. Paper label affixed to top of object: “Ring Transformer E2/Core Details/Cast Iron Ring/Mean Diameter 15.45cm/Thickness (along radius) 2.0cm/Breadth ([parallel- signified by two vertical lines] to axis) 0.509 cm/Winding Details Primary/Secondary” Damaged label adhered to upper face in back left corner: “Part[illegible]”

Cast, assembled. Polished, coated. Accessories: brass dials. Surface finish: polished, coated. Inscribed on upper face: “No 18624/ UNIVERSAL SHUNT/[Calibration measuring units 1-2000]/H. TINSLEY & Co LONDON. S.E.”

Assembled, cast. Stenciled. Accessories: dials. Surface finish: coated. Paper label adhered with tape: “SUSPENSION BUST?” Stamped label: “NAT. PHIL. LAB./No17/UNIV. OF MELB.” Inscribed on rim: “H. TINSLEY & Co/LONDON. S.E./No9722

Assembled, moulded. Coated. Accessories: dials. Surface finish: polished. Inscribed on upper face along back edge: “T.E.P.L. MELBOURNE [arrow] 551 1941” Inscribed on upper face along front edge: “EUREKA BRITISH STANDARD OHMS” Labels Inscribed on upper face: “POSTIVE POLE/LINE OR EARTH” “LINE AND/GALVANOMETER” “GALVANOMETER” “NEGATIVE POLE/AT 15.5oCENT” Underside written in pen: “ROBINSON & STUMBLES”

Turned, carved, cast. Coated, polished. Accessories: wire (plastic-coated) Surface finish: coated, polished. Dymo label: “B.”

Assembled, dove-tailed. Coated, painted. Accessories: mesh, dials. Surface finish: coated, painted. Inscribed on upper face, centred: “OHMS X 1000/ AUSTRONIC ENGINEERING LABORATORIES” Painted on upper face, back left corner: “PIII”

Assembled, moulded (bakelite). Coated. Surface finish: polished. Plaque: “Hartmann & Braun/A.-G./Frankfurt a.M.” Stamped label: “NATURAL PHILOSOPHY LABORATORY/No/UNIVERSITY OF MELBOURNE”

Machined metal sides and interior, machined plastic top with plastic dials, handmade wood base with dovetail joins and mitred corners. Perforated machined metal surface spray painted, machined plastic surface coating, wood base most likely hand varnished. Surface finish: metal sides painted matt blue, plastic top brownish red coating with smooth matt finish, wood base varnished. Inscribed on top face: “LEEDS & NORTHRUP CO./PHILADELPHIA/62798. Paper Sticker on back metal side: “PA 3” Diamond shaped paper label adhered to top face with diagram handwritten in black ink.

No. of pieces: 12 Mold, cut, screw, plated, polish. Accessories: 11 detachable screw knobs. Surface finish: varnish, electroplated. Inscribed on top face: “1 MEGOHM/ PATT.948 GAMBREE BROS & Co LTD LONDON. No 120” Chipped paint dot on top face in the front right corner.