www.americanradiohistory.com
Page 1: ...nsmitter that is better than has heretofore been offered Outstanding among its many features are style accessib lity good workmanship the very best components economical operation and a pressure type...
Page 2: ...cks The back doors are of course interlocked to prevent access to harmful votages when they are open Another major advantage is the pressure type cabinet Dirt and dust are kept out of the equipment by...
Page 3: ...ply the two parallel connected type 833 A tubes in this stage Particular at tention has been given to the mechanical de sign to obtain sturdiness and enhance the elec trical characteristics Every comp...
Page 4: ...er line to the 25 A is terminated at the back of the transmitter and is left connected to the source at all times to per mit the crystal ovens to heat at all times In addition to front panel switching...
Page 5: ...bias sup ply with the inherent long life obtainable from selenium units Balancing the bias voltages is easily done by means of two potentiometers located just inside the front door Bias may be adjuste...
Page 6: ...nces The variable loading capacity is adjusted by a knob on the left side of the front of the cabinet Directly above is the final plate tuning knob Positive action gear reduction and shaft assemblies...
Page 7: ...tage dropping re sistors for the final R F amplifier plate volt age and an attenuator circuit to reduce the audio input to the proper level A switch locat ed on the front panel inside the door actuate...
Page 8: ...A F INPUT LEVEL For 100 modulation plus 6 vu at average program level plus 3 vu FREQUENCY RESPONSE Within 11 db from 30 to 10 000 cycles DISTORTION Approximately 3 from 50 to 7500 cycles 0 95 mod NOI...
