TekWiki

515: Difference between revisions

Page Discussion Repairs

515 (view source)

Revision as of 17:21, 9 March 2024

2,437 bytes added ,  9 March
no edit summary
No edit summary
No edit summary
 
(48 intermediate revisions by 4 users not shown)
Line 1: Line 1:
The Tektronix 515 is a 15MHz single-trace all-tube oscilloscope [[introduced in 1955]].   
{{Oscilloscope Sidebar
|manufacturer=Tektronix
|series=
|model=515
|summary=15 MHz Tube scope
|image=515a trace.jpg
|caption=Tektronix 515 front
|introduced=1955
|discontinued=(?)
|manuals=
* [[Media:070-247.pdf|Tektronix 515 Manual]] (OCR)<br /><small>Alternate: [[Media:TekInstructionManual_515_515A_P31.tif|515/515A (P31)]] (29M TIF) </small>
* 515A Factory Calibration Procedure: [[Media:tek_515a_fcp.pdf|May 1960]] (OCR) / [[Media:Tek 515a fcp dec 1968.pdf | December 1968]]
* [[Media:Tek 515a mod 760a.pdf|Tektronix 515A Mod 760A]]
* [[Media:Tek 515a mod 760c.pdf|Tektronix 515A Mod 760C]]
* [[Media:Tek 515 mod760 eng docs.pdf|Tektronix 515A Mod 760 Engineering Docs]]
* [[Media:Tek 515a mod 101k.pdf|Tektronix 515A Mod 101K]]
* [[Media:040-140.pdf|Tektronix 515 Mod K515-DC1 (DC fan motor)]]
}}
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 rackmount version, the RM15 was also sold. 
There is also a 515A. 
The HV power supply uses tree [[5642]] rectifiers to produce +2325V for the CRT anode
and -1675V for the CRT cathode.  The LV power supply is linear, using a [[6080]] tube as
the pass tube of the series regulator for +300V and +100V supply.  The -150V supply is
regulated by a [[6AU5]] tube.  The voltage reference for the -150V supply is a [[5651]]
tube.  The 515 and 515A use [[selenium rectifiers]].  A kit was later made available
for converting them to silicon rectifiers for improved reliability. 


The vertical amplifier is fully differential, DC-coupled, and all tube.  The
A rack-mount version, the RM15 was also sold.
stages are as follows:
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 +2,325 V for the CRT anode and −1,675 V for the CRT cathode. 
The LV power supply is linear, using a [[6080]] tube as the pass tube of the series regulator for +300 V and +100 V supply. 
The −150 V supply is regulated by a [[6AU5]] tube.  The voltage reference for the −150 V supply is a [[5651]] tube. 
 
The 515 and 515A use [[selenium rectifiers]].  A kit was later made available 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:


* input buffer, cathode followers, [[6AU6]]
* input buffer, cathode followers, [[6AU6]]
Line 24: Line 66:
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.
==Pictures==
The maximum vertical sensitivity is 100mV/div for the 515 and 50mV for the 515A.
The [[516]] is essentially a dual-trace version of the 515.
 
* [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)]


<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
Tek 515a 1.jpg|515A
Image:Tek 515a 2.jpg
Tek 515a 2.jpg|515A
File:Wellenkino 515a.jpg|515A
Wellenkino 515a.jpg|515A
Tek 515a right.jpg|515A Left internal view
Tek 515a hvps 4.jpg|515A CRT circuit
Tek 515a hvps 3.jpg|515A HV power supply
Tek 515a hvps 2.jpg|515A HV power supply
Tek 515a hvps 1.jpg|515A HV power supply
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>
==Components==
{{Parts|515}}
{{Parts|515A}}
[[Category:Monolithic tube scopes]]
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/7711...91534"