513: Difference between revisions
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$1650 with the delay line or $1600 without. | $1650 with the delay line or $1600 without. | ||
==Vertical Signal Path== | ==Links== | ||
* [[Media:Tektronix Photo Manual 1952.pdf| Tektronix Photo Manual 1952]] | |||
==Internals== | |||
===Vertical Signal Path=== | |||
The input impedance is 1 MΩ in parallel with 40 pF. | The input impedance is 1 MΩ in parallel with 40 pF. | ||
The scope provides power to an optional cathode-follower probe. | The scope provides power to an optional cathode-follower probe. | ||
===Vertical Deflection Sensitivity and Bandwidth=== | ====Vertical Deflection Sensitivity and Bandwidth==== | ||
The 513 has a vertical deflection sensitivity switch with seven positions. | The 513 has a vertical deflection sensitivity switch with seven positions. | ||
Each position selects a range of sensitivities. | Each position selects a range of sensitivities. | ||
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using a [[12AT7]]. | using a [[12AT7]]. | ||
===Delay Line=== | ====Delay Line==== | ||
When purchased with the delay line, the 513 is a 513D. | When purchased with the delay line, the 513 is a 513D. | ||
The 513D was the first Tektronix oscilloscope to offer | The 513D was the first Tektronix oscilloscope to offer | ||
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The delay line is single-ended, implemented using 40 L-C stages. | The delay line is single-ended, implemented using 40 L-C stages. | ||
===Phase Splitter=== | ====Phase Splitter==== | ||
Following the delay, a phase splitter produces two outputs, | Following the delay, a phase splitter produces two outputs, | ||
one inverted, one not inverted. | one inverted, one not inverted. | ||
These drive the distibuted vertical output amplifier. | These drive the distibuted vertical output amplifier. | ||
===Distributed Vertical Output Amplifier=== | ====Distributed Vertical Output Amplifier==== | ||
The 513 may have been the first Tektronix oscilloscope to contain a [[distributed amplifier]]. | The 513 may have been the first Tektronix oscilloscope to contain a [[distributed amplifier]]. | ||
It was released at about the same time as the [[514]], | It was released at about the same time as the [[514]], | ||
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the [[517]] in 1951 and then the [[541]] and [[545]] in 1955. | the [[517]] in 1951 and then the [[541]] and [[545]] in 1955. | ||
==CRT== | ===CRT=== | ||
It used a [[5XP]] CRT initially, and then switched to a Tek-made CRT. | It used a [[5XP]] CRT initially, and then switched to a Tek-made CRT. | ||
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</blockquote> | </blockquote> | ||
==Low Voltage Power Supply== | ===Low Voltage Power Supply=== | ||
The low voltage power supply of the 513 puts out six voltages: | The low voltage power supply of the 513 puts out six voltages: | ||
{| border="1" style="border-collapse:collapse" class="wikitable" | {| border="1" style="border-collapse:collapse" class="wikitable" | ||
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| +275 V | | +275 V | ||
| [[selenium rectifiers]] | | [[selenium rectifiers]] | ||
| | | −140V is reference, [[6AU6]] error amp, [[6AU5]] pass tube | ||
|- | |- | ||
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|- | |- | ||
| | | −140 V | ||
| [[6X4]] | | [[6X4]] | ||
| [[OD3]] shunt regulator | | [[OD3]] shunt regulator | ||
|- | |- | ||
| | | −300 V | ||
| [[6X4]] | | [[6X4]] | ||
| unregulated | | unregulated | ||
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The 513 has no [[thermal cutoff]]. | The 513 has no [[thermal cutoff]]. | ||
==High Voltage Power Supply== | ===High Voltage Power Supply=== | ||
The high voltages for the 513 CRT are generated by the Tektronix [[210|Type 210B]] High Voltage Power Supply, | The high voltages for the 513 CRT are generated by the Tektronix [[210|Type 210B]] High Voltage Power Supply, | ||
The total CRT acceleration voltage of the 513 is | The total CRT acceleration voltage of the 513 is 12 kV. | ||
The cathode is at | The cathode is at −2 kV and the anode is a +10 kV. | ||
The HV circuit uses four [[5642]] rectifier tubes, | The HV circuit uses four [[5642]] rectifier tubes, | ||
one for the cathode voltage and three for the anode voltage. | one for the cathode voltage and three for the anode voltage. | ||
==Mechanical== | ==Mechanical== | ||
The 513 weighs 75 pounds and uses a maximum of 580 watts. | The 513 weighs 34 kg (75 pounds) and uses a maximum of 580 watts. | ||
==Pictures== | ==Pictures== | ||