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title=Tektronix 515|
title=Tektronix 515|
summary=15 MHz Tube scope |
summary=15 MHz Tube scope |
image=515a-crop.jpg |
image=515a trace.jpg |
caption=Tektronix 515 front |
caption=Tektronix 515 front |
years=1955 - ? |
introduced=1955 |
discontinued=(?) |
manuals=
manuals=
* [http://w140.com/mmm/tek-515.pdf Tektronix 515 Manual (PDF)]
* [http://w140.com/mmm/tek-515.pdf Tektronix 515 Manual (PDF)]
* [http://w140.com/tek_fcp/tek_type_515a_factory_cal_proc.pdf Tektronix 515A Factory Calibration Procedure (PDF)]
* [http://w140.com/tek_fcp/tek_type_515a_factory_cal_proc.pdf Tektronix 515A Factory Calibration Procedure, May 1960 (PDF)]
* [[Media:tek_515a_fcp.pdf|Tektronix 515A Factory Calibration Procedure, May 1960 (PDF, OCR)]]
* [[Media:Tek 515a fcp dec 1968.pdf | Tektronix 515A Factory Calibration Procedure, December 1968 (PDF, needs OCR)]]
* [[Media:Tek 515a mod 760a.pdf|Tektronix 515A Mod 760A]]
 
}}
}}
The Tektronix 515 is a 15 MHz single-trace all-tube oscilloscope [[introduced in 1955]].   
The '''Tektronix 515''' is a 15 MHz single-trace all-tube oscilloscope [[introduced in 1955]].   
It does not use plug-ins.
It does not use plug-ins.


A rack-mount version, the RM15 was also sold. There is also a 515A.   
A rack-mount version, the RM15 was also sold.
There is also a 515A (serial numbers 101 through 1000 are "Type 515", 1001 and upward are "Type 515A").   
 
The 515A has a Z-axis input and slightly higher vertical sensitivity than the 515.
Maximum vertical sensitivity is 100 mV/Div for the 515 and 50 mV/Div for the 515A.
The [[516]] is essentially a dual-trace version of the 515.


The 515 and 515A are fan-cooled, both in benchtop and rackmount forms.
{{BeginSpecs}}
{{Spec | Channels  | One vertical channel (two input connectors and a switch to select) }}
{{Spec | Bandwidth  | DC to 15 MHz }}
{{Spec | Rise time  | 23 ns }}
{{Spec | Deflection | 50 mV/div to 20 V/div (515A), 100 mV/div to 50 V/div (515) }}
{{Spec | Sweep      | 0.2 μs/div to 2 s/div }}
{{Spec | CRT        | [[T55|T55 CRT CRT]], P31 [[phosphor]] standard, 6 cm linear vertical deflection }}
{{Spec | Input impedance | 1 MΩ // 30 pF }}
{{Spec | Power consumption | 275 W }}
{{Spec | Weight    | 40 pounds (18 kg) }}
{{EndSpecs}}
==Links==
* [http://www.museum-nt.de/objekte/tek_515a.html Tek 515A] @ museum-nt.de
* [https://www.youtube.com/watch?v=5OeEwtCBuYI Tektronix 515A checkout] @ youtube.com
==Internals==
The HV power supply uses three [[5642]] rectifiers to produce +2325 V for the CRT anode
The HV power supply uses three [[5642]] rectifiers to produce +2325 V for the CRT anode
and -1675 V for the CRT cathode.  The LV power supply is linear, using a [[6080]] tube as
and -1675 V for the CRT cathode.  The LV power supply is linear, using a [[6080]] tube as
Line 20: Line 49:
tube.  The 515 and 515A use [[selenium rectifiers]].  A kit was later made available
tube.  The 515 and 515A use [[selenium rectifiers]].  A kit was later made available
for converting them to silicon rectifiers for improved reliability.   
for converting them to silicon rectifiers for improved reliability.   
Starting at serial number 4424, the 515A used the [[120-142]] power transformer,
the same part that is used in the [[516]].


The vertical amplifier is fully differential, DC-coupled, and all tube.  The stages are as follows:
The vertical amplifier is fully differential, DC-coupled, and all tube.  The stages are as follows:
Line 33: Line 64:


The trigger is a 6DJ8 differential trigger amplifier followed by a 6DJ8 Schmitt trigger.
The trigger is a 6DJ8 differential trigger amplifier followed by a 6DJ8 Schmitt trigger.
The 515A has a Z-axis input and slightly higher vertical sensitivity than the 515.
The maximum vertical sensitivity is 100 mV/Div for the 515 and 50 mV/Div for the 515A.
The [[516]] is essentially a dual-trace version of the 515.
The 515 and 515A use the [[T55|T55 CRT CRT]]. P31 [[phosphor]] was standard.
Serial numbers 101 through 1000 are "Type 515". 
Starting with serial number 1001, they are "Type 515A".
==Specifications==
[[Category:Specifications needed]]


==Pictures==
==Pictures==


<gallery>
<gallery>
Image:rm15_1.jpg|RM15 front view
rm15_1.jpg|RM15 front view
Image:rm15_2.jpg|RM15 side view
rm15_2.jpg|RM15 side view
File:Tek 515 vertical path.png|Vertical signal path
Tek 515 vertical path.png|Vertical signal path
Image:rm15_3.jpg|RM15 top view
rm15_3.jpg|RM15 top view
Image:rm15_4.jpg|RM15 bottom view
rm15_4.jpg|RM15 bottom view
Image:Tek 515a 1.jpg|515A
Tek 515a 1.jpg|515A
Image:Tek 515a 2.jpg|515A
Tek 515a 2.jpg|515A
File:Wellenkino 515a.jpg|515A
Wellenkino 515a.jpg|515A
File:Tek 515a right.jpg|515A Left internal view
Tek 515a right.jpg|515A Left internal view
File:Tek 515a hvps 4.jpg|515A CRT circuit
Tek 515a hvps 4.jpg|515A CRT circuit
File:Tek 515a hvps 3.jpg|515A HV power supply
Tek 515a hvps 3.jpg|515A HV power supply
File:Tek 515a hvps 2.jpg|515A HV power supply
Tek 515a hvps 2.jpg|515A HV power supply
File:Tek 515a hvps 1.jpg|515A HV power supply
Tek 515a hvps 1.jpg|515A HV power supply
File:Tek-rm15 DxO.jpg
Tek-rm15 DxO.jpg
Tek 515a trace2.jpg|515A
Tek 515a left internal.jpg|515A left internal
Tek 515a right internal.jpg|515A right internal
Tek 515a s1 1.jpg|515A S1
Tek 515a s1 2.jpg|515A S1
Tek 515a s1 3.jpg|515A S1
Tek 515a s1 4.jpg|515A S1
Tek 515a s1 5.jpg|515A S1
Tek rm15 inside.jpg|RM15
Tek rm15 inside2.jpg|RM15
Tek rm15 left controls.jpg|RM15
Tek rm15 right controls.jpg|RM15
Tek rm15 rear.jpg|RM15 rear
Tek 515a cal trace.jpg|515A
Tek 515a 34.jpg|515A
Blue tek 515a.jpg|Blue 515A
</gallery>
</gallery>




[[Category:Tube scopes]]
[[Category:Monolithic tube scopes]]
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/10772...56175"

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