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514: Difference between revisions
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''or'' an instrument with DC response (the [[512]]). The 514 provides DC response ''and'' 10 MHz bandwidth. | ''or'' an instrument with DC response (the [[512]]). The 514 provides DC response ''and'' 10 MHz bandwidth. | ||
The 514 uses a [[5CPA]] CRT with a total accelerating voltage of 3 kV (−1.5 kV on the CRT cathode and +1.5 kV on the CRT anode). | |||
The 514 uses a [[5CPA]] CRT with a total accelerating voltage of | |||
( | |||
The standard [[phosphor]] for a 514 was P1. | The standard [[phosphor]] for a 514 was P1. | ||
The deflection sensitivity of the CRT is approximately 27 V/cm vertical and 32 V/cm horizontal. | The deflection sensitivity of the CRT is approximately 27 V/cm vertical and 32 V/cm horizontal. | ||
The power supply is regulated based on a | The power supply is regulated based on a −140 V reference produced by an [[OD3]] gas regulator tube. | ||
The +225 V supply uses three [[5V4G]] rectifier tubes in parallel. | The +225 V supply uses three [[5V4G]] rectifier tubes in parallel. | ||
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on some models), which has a 24-section 250 ns lumped L-C [[delay line]]. | on some models), which has a 24-section 250 ns lumped L-C [[delay line]]. | ||
There was also an 'A' version (514-A & 514-AD respectively), which appears to have been available in 1954. | There was also an 'A' version (514-A & 514-AD respectively), which appears to have been available in 1954. | ||
''(There were also some models marked 'Series A', which may have been a predecessor to the 514A? | ''(There were also some models marked 'Series A', which may have been a predecessor to the 514A? How does the 514AD differ from the 514D?)'' | ||
How does the 514AD differ from the 514D?)'' | |||
It has no [[thermal cutoff]]. | It has no [[thermal cutoff]]. | ||
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{{Spec | Input impedance |1 MΩ // 30 pF }} | {{Spec | Input impedance |1 MΩ // 30 pF }} | ||
{{Spec | Vertical deflection | 100 V/cm down to 300 mV/cm (DC) / 30 mV/cm (AC), 1 - 3 - 10 sequence}} | {{Spec | Vertical deflection | 100 V/cm down to 300 mV/cm (DC) / 30 mV/cm (AC), 1 - 3 - 10 sequence}} | ||
{{Spec | Weight | | {{Spec | Weight | 28.1 kg (62 pounds) }} | ||
{{Spec | Power consumption | 375 W }} | {{Spec | Power consumption | 375 W }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||