32,957
edits
511: Difference between revisions
Jump to navigation
Jump to search
no edit summary
(cat) |
No edit summary |
||
| Line 14: | Line 14: | ||
}} | }} | ||
The 511 was '''Tek's first product''', [[introduced in 1947|introduced in June 1947]]. | The 511 was '''Tek's first product''', | ||
A revised version, the 511A, was [[introduced in 1950]]. [[Howard Vollum]] was directly involved with the design of the 511. | [[introduced in 1947|introduced in June 1947]]. | ||
A revised version, the 511A, was [[introduced in 1950]]. | |||
[[Howard Vollum]] was directly involved with the design of the 511. | |||
==Specifications== | ==Specifications== | ||
The 511A does not have response down to DC. The frequency range is specified as 10 Hz to 10 MHz. | The 511A does not have response down to DC. | ||
There is also a 511AD. The "D" in the model number indicates that it has a L-C [[delay line]]. | The frequency range is specified as 10 Hz to 10 MHz. | ||
The 511 weighs 65 pounds (29 kg) and consumes 180 W. The 511A weighs 50 pounds (23 kg) and consumes 230 W. | There is also a 511AD. | ||
The "D" in the model number indicates that it has a L-C [[delay line]]. | |||
The 511 weighs 65 pounds (29 kg) and consumes 180 W. | |||
The 511A weighs 50 pounds (23 kg) and consumes 230 W. | |||
[[Category:Specifications needed]] ''please add'' | [[Category:Specifications needed]] ''please add'' | ||
==Internals== | ==Internals== | ||
The 511 uses a standard CRT, the [[5CP1A]]. The vertical output of the 511A is a pair of [[6AG7]] tubes, | The 511 uses a standard CRT, the [[5CP1A]]. | ||
The vertical output of the 511A is a pair of [[6AG7]] tubes, | |||
AC-coupled to the vertical deflection plates. | AC-coupled to the vertical deflection plates. | ||
Neither the 511 nor the 511A has a [[thermal cutoff]]. The 511AD was available through 1953. | 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 511A has serial numbers 455 and up. | The 511 was produced with serial numbers 101 to 454. | ||
The 511A has serial numbers 455 and up. | |||
The main difference between the 511 and the 511A is the power supply. | The main difference between the 511 and the 511A is the power supply. | ||
In the 511 there are two power transformers, | In the 511 there are two power transformers, | ||
| Line 49: | Line 57: | ||
There was an option that added a 1 μs marker generator. | There was an option that added a 1 μs marker generator. | ||
===Delay=== | |||
The Tektronix Type 1-AD-25 delay was available as a factory option for the 511. | |||
With the delay, the scope is a 511-AD. | |||
The delay is composed of 24 L-C sections. | |||
Even when ordered without the delay, the 511's chassis was pre-drilled for the delay | |||
so that it could be added later, in the field, without drilling. | |||
The delay could be switched in and out of the signal path, presumably to avoid | |||
the slight signal degradation the delay causes. | |||
==History== | ==History== | ||
Tektronix engineer [[Frank Hood]] recollects: | Tektronix engineer [[Frank Hood]] recollects: | ||