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Surface Condenser and Air Pump, England, 1775

1775

Cavalry sketching board, 1910

1910

Money testing balance in wooden case

1772-1781

Money scales in decorated pearwood case

1763-1779

Daily Herald Photograph: Painting drum shells

1943-02-06

Altazimuth theodolite

Two valve amplifier, Mk. III, c. 1917

1917

Electrostatic machine

1812

Model of an independent type 'Cabinet' rotative beam engine, with self-supporting iron frame and cistern bed, made by Boulton, Watt & Co., and owned by James Watt, c1813, with tin container, for cigarettes, containing nineteen steel flat washers, fourteen slotted brass dome-head machine screws and an ‘L’ shaped flat piece of wood.

Model, of an 'Independent' type beam engine by Boulton, Watt & Co., 1813

1812-1814

A black and white silver gelatin print entitled 'Red Wedge in Ronnie Scott's', taken by Herbie Knott. From the Impressions Gallery exhibition 'Photographs from the Independent Newspaper'.

Red Wedge in Ronnie Scott's

A black and white photograph entitled Tory Election Manifesto, Launch 8', taken by John Voos. From the Impressions Gallery exhibition 'Photographs from the Independent Newspaper'.

Tory Election Manifesto, Launch 8

Sterling spark transmitter, No. 1, by W. D. Wireless Factory, Soho, London, England, 1915-1918. The Sterling tuned spark gap wireless transmitter operated on the frequency range of 100-260 metres. The transmitter's output of 30-40 Watts fed to the 120 feet of trailing aerial gave it an operating range of 8-10 miles. The set was usually mounted on a tray on the side of the aircraft fuselage. The trailing aerial of stranded copper wire with a 3Ib weight on the end was spooled out either from the side of aircraft fuselage alongside the wireless set or through an insulated gland in the floor.

Sterling spark transmitter, No. 1, 1915-1918.

1915-1918

Hurter and Driffield Actinograph Patent No. 5545 1888, with slide rule calculator with roller, seals for H & D speeds 300-0.5: light: very dull - very bright, aperture f/2.8-64, exposure time 0.05sec to 60 secs. Time of year and day on roller. Calibrated for North latitude 52 30 0 degrees. In wooden case. Marion & Co. 1892.

Hurter and Driffield actinograph

1892

Ampro Stylist 16mm cine projector with speaker believed to be gift from Rank and date from 1935-1939. Built in to case. Serial No S10063E. Lens F=2 inch, f/1.6. Simplex-Ampro Ltd, Wardor Street, London.

Ampro Stylist 16mm Cine Projector

Fishskin case containing six objective lenses, ivory magnifier, five ivory slides, one brass slide, forceps, two glass tubes, ivory container for mica cover slips and sheet listing slide specimens by E. Scarlett, Soho London, c.1730 [missing - Wilson screw barrel microscope, Engraved "Ed.Scarlett "]

Wilson microscope and components, by Edward Scarlett, 1730

1730

Compound monocular microscope, by J. Amadio, 10 Dean Street, Soho, London, England, 1850-1875.

Compound monocular microscope

1850-1875

Ivory microscope by Edward Scarlett, contained in ivory case with four compartments, "Ed. Scarlett, Soho, London"

Ivory microscope by Edward Scarlett

Photograph entitled 'Nice Boy Wanted, Soho Butcher's shop, taken by Lewis Morley in London, 1964.

Nice Boy Wanted, Soho Butcher's Shop

1964

Model of one Tilt Hammer and one lifting Hammer at right angles to each other, one hammer actuated at the tail, the other at the belly by lifting cams driven by one connecting rod fitted with stepped sun and planet motion

Model of one Tilt Hammer and one lifting Hammer at right angles to each other

c.1783

Model of a pair of Tilt Hammers alongside each other. Two beams and connecting rods with cranked pins at an angle to each other and one of the wheels provided with a balance weight

Model of a pair of tilt hammers

1781

Three-valve low-frequency Amplifier C Mark II No. 1 from First World War - introduced in 1916/1917. It consisted of the orthodox connections for such an amplifier with the addition of one joining the H.T. positive terminal to a point on the primary winding of the first transformer. This connection was introduced to stabalise the instrument, which tended to self-oscillation. The primary winding of the input transformer had six tappings to enable the impedance of this winding to be adjusted to suit impedance of the circuit to which it is connected. The telephone receivers were connected in the anode circuit of the last valve through the medium of a telephone transformer. The right-hand switch is for the simultaneous adjustment of the filament currents of the three valves. The input connections were normally marked L1 and L2. It had two controls: a studded input impedance switch and a rheostat knob for filament voltage control.

Three-valve low-frequency Amplifier C Mark II No. 1, 1917

1917

Soho repeating back, made by Marion & Co. Ltd, 22/23 Soho Square. London W. Bayley's Patent repeating back for half plate or whole plate camera producing six exposures on quarter plate, sliding plate and ground glass screen holder, automatic exposure counter. Exposing aperture covered by simple shutter operated by table release.

Soho repeating back

1902-1912

A black and white photograph entitled 'Red Wedge at Ronnie Scott's', taken by Herbie Knott in 1987. From the Impressions Gallery exhibition 'Photographs from the Independent Newspaper'.

Red Wedge at Ronnie Scott's

1987

A black and white photograph entitled 'Red Wedge at Ronnie Scott's', taken by Herbie Knott in 1987. From the Impressions Gallery exhibition 'Photographs from the Independent Newspaper'. Independent Picture label on verso.

Red Wedge at Ronnie Scott's

1987-05-18

Large format colour polariod by Neal Slavin: Colony Room Club, Soho, London. 1.9.83

Colony Room Club, Soho, London

1983-09-01

'B' Mk. II front receiver - 80 meters, without valves, by W. D. Wireless Factory, Soho, London, England, 1915-1918

'B' Mk. II front receiver - 80 meters

1915-1918