History of the manufacturer
Evershed & Vignoles Ltd; London
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| Name: | Evershed & Vignoles Ltd; London (GB) |
| Abbreviation: | evershed |
| Products: | Model types |
| Summary: |
Evershed & Vignoles, Limited, Acton Lane Works, Chiswick, London, W.4.: Products: Co-founded by Sydney Evershed (1858 -1939) in 1895 was taken over by AVO Ltd. Avocet House, 92-96 Vauxhall Bridge Road, London, SW1. AVO was known for their Avometer, a general purpose multimeter. They made a wide range of test gear including valve testers. The Acton Lane works closed down at about 1986. The current range of products can be seen at: www megger com. |
| Founded: | 1895 |
| History: |
Evershed & Vignoles, Limited, Acton Lane Works, Chiswick, London, W.4.: Well known by their "Megger Earth Tester", which is an insulation tester in the high Megohm range. Evershed and Vignoles invented them and sold them, starting in 1905. Already before they sold also other measuring instruments. The earlier Megger had two massive bar magnets with pole pieces at both ends, so that one end did for the moving coils and the other provided the generator field.
The earlier Megger Earth Testers in wooden cases had only two posts, one from 1926 has 4 posts opposite of the handle. There is a "Megger pocket book on insulation and continuity testers", dated 1960. The firm Megger Ltd. is now based at: Archcliffe Road, Dover, Kent, CT17 9EN, United Kingdom. |
This manufacturer was suggested by Sándor Selyem-Tóth.
Some models:
| Country | Year | Name | 1st Tube | Notes |
|---|---|---|---|---|
| GB | 33 | Megger, (Megohm-meter) | Messbereich 0-50 MOhm. Eingebauter Kurbelinduktor 500 V. Skalenbogen 63 mm lang. | |
| GB | 36 | Bridge Megger | Insulation: 10 000 Ohm-100 MOhm. Bridge: 0,01Ohm-100 MOhm. Measures insulation. In additi... | |
| GB | 36 | MEG Tester | 0-100 MOhm, Measures insulation. This instrument was built with different operating vol... | |
| GB | 36 | MEG Earth Tester | Insulation tester,with AC/DC generator. 50, 300, 600 OHm. | |
| GB | 52 | Megger Series 1 | Megger stands for Megohm-meter. This Series 1 Megger shows the British Patent Number 63246... | |
| GB | 50 | Insulation Tester Megger - Kurbelinduktor | Lo stesso apparecchio veniva proposto in 2 versioni: 1) Tensione erogata 500 volt, ... | |
| GB | 60 | Megger Insulation Tester 70143 | Misuratore di isolamento degli impianti elettrici verso terra. La tensione per il funzi... | |
| GB | 25 | Direct Reading Resistance Box | Maximum 9999 Ohms. | |
| GB | 60 | Megger Insulation & Continuity Tester - Isolations Prüfer Serie 3 Mark III | Crank operated Megger Insulation and Continuity Tester Serie 3 Mark III. Measuring voltag... | |
| GB | 20 | Ducter Micro-Ohm Meter | Ducter micro-ohm meter, by Evershed and Vignoles Ltd., 10 micro-ohms to 1 ohm. | |
| GB | 62 | Megger Insulation Tester 40003 500V | This insulation and continuation tester is an alternative to the Megger hand generator mod... |
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