radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

Wheatstone Bridge PW2 Portable

Wheatstone Bridge PW2 Portable; CROPICO, Croydon (ID = 1459961) Equipment Wheatstone Bridge PW2 Portable; CROPICO, Croydon (ID = 1459962) Equipment
Use red slider bar for more.
Wheatstone Bridge PW2 Portable; CROPICO, Croydon (ID = 1459961) Equipment
CROPICO, Croydon: Wheatstone Bridge PW2 Portable [Equipment] ID = 1459961 900x692
Select picture or schematic to display from thumbnails on the right and click for download.
For model Wheatstone Bridge PW2 Portable, CROPICO, Croydon Precision Instruments; Croydon
 
Country:  Great Britain (UK)
Manufacturer / Brand:  CROPICO, Croydon Precision Instruments; Croydon
Year: 1958 ?? Category: Service- or Lab Equipment
Wave bands - without
Details
Power type and voltage Powered by external power supply or a main unit.
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Wheatstone Bridge PW2 Portable - CROPICO, Croydon Precision
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 318 x 200 x 215 mm / 12.5 x 7.9 x 8.5 inch
Notes

The PW2 is a manually balanced Wheatstone bridge with a usable range from 10 milliohms to 11 megohms. Four decades of switched resistances provide four-digit resolution (from 1 milliohm on the 10 ohm range to 1kohm on the 10 megohm range. Separate multiply by and divide by switches, each spanning four decades from 10 to 10,000 act to modify the scaling of the switched resistances.

There is no internal power supply in the original, a battery of at least 2V would have been connected to the Battery terminals. In this modified example, a very neat 240V AC mains power supply has been built in to the lid, with plug-selectable voltages from 1.5V to 18V.

Net weight (2.2 lb = 1 kg) 14 lb 0 oz (14 lb) / 6.356 kg

Model page created by Gwyn Griffiths. See "Data change" for further contributors.



All listed radios etc. from CROPICO, Croydon Precision Instruments; Croydon
Here you find 3 models, 3 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
rmXorg