315: Difference between revisions

70 bytes added ,  29 August 2018
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== Case Design ==
{{MissingSpecs}}
 
==Internals==
=== Case Design ===
The 315 is mechanically similar to  
The 315 is mechanically similar to  
early 500-series monolithic scopes such as the [[511|511A]].
early 500-series monolithic scopes such as the [[511|511A]].
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54x, and the 55x, 56x, 57x, and 58x designs.   
54x, and the 55x, 56x, 57x, and 58x designs.   


== 3" CRT ==
=== 3" CRT ===
The move to use a 3” CRT rather than a 5” was to produce a “portable” oscilloscope, which the 315-D was promoted as.  With dimensions considerably smaller than the 5” models and only weighing a modest 36 pounds, it offers a lot of performance in a small package.  In [[introduced_in_1956|1956]], Tek introduced a rack mount version, the 315R.  One has to wonder what the benefit of a 3" screen is when it was packaged as a rack sized instrument.
The move to use a 3” CRT rather than a 5” was to produce a “portable” oscilloscope, which the 315-D was promoted as.  With dimensions considerably smaller than the 5” models and only weighing a modest 36 pounds, it offers a lot of performance in a small package.  In [[introduced_in_1956|1956]], Tek introduced a rack mount version, the 315R.  One has to wonder what the benefit of a 3" screen is when it was packaged as a rack sized instrument.


== Delay Line ==
=== Delay Line ===
As with earlier 5” Tektronix scopes, the “D” suffix indicates the inclusion of  
As with earlier 5” Tektronix scopes, the “D” suffix indicates the inclusion of  
a delay line in the vertical signal path.   
a delay line in the vertical signal path.   
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== Pricing ==
== Pricing ==
The delay line was offered as a “delete” option on early scopes, with the version without the delay line selling for $50 less.  Apparently most customers ordered the delay line versions, and the 315 was the last scope introduced with the D suffix.  
The delay line was offered as a “delete” option on early scopes, with the version without the delay line selling for $50 less.  Apparently most customers ordered the delay line versions, and the 315 was the last scope introduced with the D suffix.  
Even so, the [http://bitsavers.org/pdf/tektronix/catalog/Tektronix_Catalog_1953-03.pdf 1953 catalog] which was the first the 315-D appeared in did not list the version without the delay line.  It is quite possible that no plain 315 models were ever sold.  
Even so, the [http://bitsavers.org/pdf/tektronix/catalog/Tektronix_Catalog_1953-03.pdf 1953 catalog], which was the first the 315-D appeared in, did not list the version without the delay line.  It is quite possible that no plain 315 models were ever sold.  
 
==Links==
* [[Media:Tektronix Photo Manual 1952.pdf| Tektronix Photo Manual 1952]]


==Pictures==
==Pictures==


<gallery>
<gallery>
Image:Tek 315d front fl.jpg
Tek 315d front fl.jpg
Image:315d_front.jpg|Front view
315d_front.jpg|Front view
Image:315d_right_case.jpg|Right view
315d_right_case.jpg|Right view
Image:315d_right_internal.jpg|Right internal
315d_right_internal.jpg|Right internal
Image:315d_top_internal.jpg|Top internal
315d_top_internal.jpg|Top internal
Image:315d_left_internal.jpg|Left internal
315d_left_internal.jpg|Left internal
Image:315d_bottom_internal.jpg|Bottom internal
315d_bottom_internal.jpg|Bottom internal
Image:315d_rear.jpg|Rear view
315d_rear.jpg|Rear view
Image:315r.jpg|Catalog photo of 315R
315r.jpg|Catalog photo of 315R
Tek 315 lv ps.png|Low-voltage power supply
Tek 315 lv ps.png|Low-voltage power supply
Tek 315 timebase.png|Time base
Tek 315 timebase.png|Time base