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511: Difference between revisions
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The "D" in the model number indicates that it has a delay line. | The "D" in the model number indicates that it has a delay line. | ||
The 511 weighs 65 pounds and uses 180 watts. | The 511 weighs 65 pounds and uses 180 watts. | ||
The 511A weighs 50 pounds and uses 230 watts. | The 511A weighs 50 pounds and uses 230 watts. | ||
Neither the 511 nor the 511A has a [[thermal cutoff]]. | Neither the 511 nor the 511A has a [[thermal cutoff]]. | ||
The 511AD was available through 1953. | |||
The 511 was produced with serial numbers 101 to 454. | The 511 was produced with serial numbers 101 to 454. | ||