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Scientific Instruments |
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Scientific Instruments |
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Sextants Theodolites Electronic Instruments
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Caveat emptor No provenance is attached to the items on this page and unless stated there is no guarantee given as to their date and place of manufacture. Buyers should be aware that there are reproductions of this type of collectable and the following items are sold solely on the basis of their decorative qualities. |
We are temporarily out of stock of all sextants. Please visit us again in a week or two to see if more have been obtained
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Caveat emptor No provenance is attached to the items on this page and unless stated there is no guarantee given as to their date and place of manufacture. Buyers should be aware that there are reproductions of this type of collectable and the following items are sold solely on the basis of their decorative qualities. |
Theodolite, Stanley London
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Click on picture for more photos |
Brass theodolite head marked Stanley London complete with
spirit levels, compass, vernier adjustment with magnifier setting. Appears
to work in all aspects but not calibrated and probably reproduction,
however, a superb display item, looks wonderful in the study, on the desk
or in a display case. Comes in polished wood case with brass corner
plates. A super and unusual decorative gift.
SIT/002: Price £98.95 SOLD |
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Brass Surveyor's Scope Inscribed A. G. Thornton, Manchester
In original wooden case (cracks along top, but robust) and with what looks like original leather shoulder strap. Both spirit levels working.
Inside case lid is the "last" servicing ticket, by Cooke, Troughton & Simms dated 1933. Key to case is lost
REF SIT/ 003 £150:00 Bin 86.00 |
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Tinsley Phase Splitting Resistance consists of a variable number of
non-inductively wound resistance coils. It is used in series with a
variable capacitance to produce the quadrature phase of a 2-phase Drysdale
phase-shifter when the available supply is single phase. The Drysdale
phase-shifter is an essential component of the Drysdale-Tinsley AC
potentiometer used for the accurate measurement of alternating currents
and voltages.
Wooden box, intact but scratched and marked with use (would polish up well), |
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bakelite panel, brass plugs for resistance selection and brass terminals Range
100 ohms - 1000 ohms in steps of 100 ohms Ref: SIE/002 £37.50 |
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W. G. Pye & Co Ltd, Cambridge, Resistance Box (or Bridge), Manganin Coils, No. 18,924
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Ref: SIE/003 £37.50 |
Wooden box, intact but dulled and scratched with use (would polish up well), bakelite panel, brass plugs for resistance selection and brass terminals, with 21 plugs (2 missing) Internal repairs needed to wire mounting studs, where several have corroded and broken leaving them swinging loose on the wires (new stud mounts needed), and some corrosion to external metal parts. Good for museum or collector's display
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Cambridge Instrument Co Ltd, England. Cambridge pH Meter No. L-267911
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Ref: SIE/004 £45.50 |
Wooden case in good condition, would polish up really well, bakelite panel, still has handbook in lid. Appears undamaged but no guarantee is given as to its working condition or calibration. For museum or collector's display only. Metal catch on case has some surface corrosion
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PAG Elektro-Pneumostat PL No. 188 Type EM
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Whatever it is, it has moving parts and comes in a box!
There is a rheostat at one end, a motor at the other and perhaps a pump of some description. Since I don't know what it's used for I don't know if it works or if there is anything missing. But it looks unusual and any collection of electrical equipment really should have one of these to call itself complete.
Ref: SIE/005 £20.00
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