A. H. Grebe & Co. AH-1
| Model: | AH-1 |
| Manufacturer: | A. H. Grebe & Co. |
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Page 2 Schematics Content
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Grebe model AH-1
Line voltage 115 - Volume Control Full On
Volume Control Minimum
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All sets leaving the factory are adjusted to operate on 60 cycles, from 115 to 125 volts. When the line voltage is from 100 to 115 volts, remove the fuse cover and change the 2 ampere fuse from the 120 to the 110 volt terminal. For lines from 125 to 135 volts, the dealer should install a Clarostat Automatic Line Voltage Regulator, type A, or a Ward-Leonard Line Resistor #507109-G in series with the line.
Electrical Test Chart for Grebe Synchrophase Type AH-1