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Impedance Bridge 650-AP

Impedance Bridge 650-AP; General Radio (ID = 133136) Equipment
 
Impedance Bridge 650-AP; General Radio (ID = 133137) Equipment
 
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Impedance Bridge 650-AP; General Radio (ID = 133139) Equipment
General Radio: Impedance Bridge 650-AP [Equipment] ID = 133139 496x700
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For model Impedance Bridge 650-AP, General Radio Company; Cambridge (MA):
Bild aus Operating und Maintenance Manual
 
Country:  United States of America (USA)
Manufacturer / Brand:  General Radio Company; Cambridge (MA)
alternative name
 
GenRad
Year: 1945 ?? Category: Service- or Lab Equipment
Valves / Tubes 3: 6H6 6SL7GT 6SL7GT
Details
Power type and voltage Alternating Current supply (AC) / 110/220 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Impedance Bridge 650-AP - General Radio Company;
Material Wooden case
Shape Tablemodel, slant panel.
Dimensions (WHD) 12 x 8.5 x 20 inch / 305 x 216 x 508 mm
Notes

There are 4 Modes to supply the bridge with the test voltage:
1)built-in Direct Current;
2) built-in mechanical vibrator at 1 kHz;
3) electronic 1 kHz oscillator, part of the selective amplifier plug-in (650-P1);
4) external generator voltage.

Tube 6SL7GT is on the market not earlier than 1941 or 1942.

Die Impedanz-Messbrücke kann auf 4 verschiedene Arten mit einer Brückenspannung versorgt werden:
1) interne Gleichspannung;
2) eingebauter mechanischer Summer 1 kHz;
3) elektronischer 1 kHz Oszillator im Verstärker-Einschub (650-P1);
4) externe Generatorspannung.

Net weight (2.2 lb = 1 kg) 13.6 kg / 29 lb 15.3 oz (29.956 lb)
Price in first year of sale 425.00 $
Source of data -- Original-techn. papers.

Model page created by Felix Schaffhauser. See "Data change" for further contributors.



All listed radios etc. from General Radio Company; Cambridge (MA)
Here you find 216 models, 197 with images and 84 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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