310: Difference between revisions

Jump to navigation Jump to search

310 (view source)

Revision as of 07:07, 17 April 2023

570 bytes removed ,  17 April 2023
no edit summary
No edit summary
No edit summary
Line 13: Line 13:
* [[Media:070-244.pdf|Tektronix 310 Manual 070-244]]
* [[Media:070-244.pdf|Tektronix 310 Manual 070-244]]
* [[Media:070-0892-00.pdf|Tektronix 310 Manual]] (rough, bad-OCR)
* [[Media:070-0892-00.pdf|Tektronix 310 Manual]] (rough, bad-OCR)
* [[Media:070-0893-00.pdf|Tektronix 310A Manual]] (bad-OCR) / <small>[http://w140.com/tek_310a.djvu alternate (DjVu)]</small>
* [[Media:070-0893-00.pdf|Tektronix 310A Manual]] (bad-OCR) / <small>[https://w140.com/tek_310a.djvu alternate (DjVu)]</small>
* [http://bama.edebris.com/manuals/tek/310a/ Tek 310A manuals @ BAMA]
* [http://bama.edebris.com/manuals/tek/310a/ Tek 310A manuals @ BAMA]
<small>
<small>
===Calibration Procedures===
===Calibration Procedures===
* [[Media:tek_310_fcp.pdf|Tektronix 310 Factory Calibration Procedure (PDF, OCR, bad-OCR)]] / [http://w140.com/tek_fcp/tek_type_310_factory_cal_proc.pdf alternate]
* [[Media:tek_310_fcp.pdf|Tektronix 310 Factory Calibration Procedure]] (bad-OCR)
* [[Media:tek_310a_fcp.pdf|Tektronix 310A Factory Calibration Procedure (PDF, OCR, bad-OCR)]] / [http://w140.com/tek_fcp/tek_type_310a_factory_cal_proc.pdf alternate]
* [[Media:tek_310a_fcp.pdf|Tektronix 310A Factory Calibration Procedure]] (bad-OCR)
* [[Media:Tek 310a fcp oct 1968 with 1969 updates.pdf|Tektronix 310A Factory Calibration Procedure with 1969 updates]]
* [[Media:Tek 310a fcp oct 1968 with 1969 updates.pdf|Tektronix 310A Factory Calibration Procedure with 1969 updates]]
* [[Media:Tek 310a cal outline.pdf|Tektronix 310A Calibration Outline (PDF, OCR)]]
* [[Media:Tek 310a cal outline.pdf|Tektronix 310A Calibration Outline]] (OCR)
</small>
</small>
<small>
<small>
===Modifications===
===Modifications===
* [[Media:Tek 310a mod 109a.pdf|Tektronix 310A Mod 109A, High-Altitude Modification (PDF)]]
* [[Media:Tek 310a mod 109a.pdf|Tektronix 310A Mod 109A, High-Altitude Modification]]
* [[Media:Tek 310a mod 812s.pdf|Tektronix 310A Mod 812S, Vertical Input Connector Changed to UHF]]
* [[Media:Tek 310a mod 812s.pdf|Tektronix 310A Mod 812S, Vertical Input Connector Changed to UHF]]
* [[Media:Tek 310a mod 222a.pdf|Boeing Black-out]]
* [[Media:Tek 310a mod 222a.pdf|Boeing Black-out]]
Line 34: Line 34:
</small>
</small>
}}
}}
The '''Tektronix 310''' is a compact portable oscilloscope [[introduced in 1955]].
The '''Tektronix 310''' is a compact portable oscilloscope, designed by [[Frank Hood]] and [[John Kobbe]] that was [[introduced in 1955]].
It was designed by [[Frank Hood]] and [[John Kobbe]].
 
It is a 4 MHz single-trace, single-timebase scope with a 3" (7.5 cm) round CRT.
It is a 4 MHz single-trace, single-timebase scope with a 3" (7.5 cm) round CRT.


The [[Hickok]] company produced a clone of the 310 under a US military contract as the [[AN/USM89B]].
The [[Hickok]] company produced a clone of the 310 under a US military contract as the [[AN/USM89B]].
Line 50: Line 49:
{{Spec | Z input        | 20 V<sub>p-p</sub> at rear "CRT Cathode" binding post }}
{{Spec | Z input        | 20 V<sub>p-p</sub> at rear "CRT Cathode" binding post }}
{{Spec | Calibrator      | 0.5 V<sub>p-p</sub> to 100 V<sub>p-p</sub>, 1–2–5; 1 kHz }}
{{Spec | Calibrator      | 0.5 V<sub>p-p</sub> to 100 V<sub>p-p</sub>, 1–2–5; 1 kHz }}
{{Spec | Calibrator      | 1 kHz output, up to 100 V }}
{{Spec | Power          | 175 W }}
{{Spec | Power          | 175 W }}
{{EndSpecs}}
{{EndSpecs}}
==310A==
A revised version, the 310A, was [[introduced in 1959]]. 
The 310 used printed-circuit boards but the 310A returned to ceramic strip construction. <small>''Is this the only time that a Tek design was moved from PCB back to ceramic strip?''</small>
P2 [[phosphor]] was standard.  P1, P7 and P11 were also available.


==Internals==
==Internals==
=== Cooling ===
The scope cabinet was hinged to allow it to be opened like a book and operated for access to the circuitry for service purposes. 
The 310 is a tube scope and uses 175 watts, but it does not have a fan.   
 
===Cooling===
The 310 is a tube scope and consumes 175 watts, but it does not have a fan.   
It therefore tends to run hot, particularly when used in a hot environment with still air.   
It therefore tends to run hot, particularly when used in a hot environment with still air.   
It has a 165 °F (74 °C)  [[thermal cutoff]] switch in series with the primary of the power transformer.  
It has a 165 °F (74 °C)  [[thermal cutoff]] switch in series with the primary of the power transformer.  
For extended use in one place, a tilted fan base, the [[FB310]] (part number 016-012) was available.   
For extended use in one place, a tilted fan base, the [[FB310]] (part number 016-012) was available.   
The fan base blows air upward through the perforated bottom panel of the 310.
The fan base blows air upward through the perforated bottom panel of the 310.
While the scope had universal primary wiring options, the fan base did not.  Separate models were available for 115 V<sub>AC</sub> or 230 V<sub>AC</sub> operation.


The 310 is hinged at the rear, allowing reasonably convenient access to the circuitry despite the fact that the components are packed more densely than in other Tektronix scopes of the era.   
The scope has feet on the rear panel to allow it to be operated on the floor with the front panel facing up, but the manual warns against prolonged operation in this orientation.   


== 310A ==
===Components===
A revised version, the 310A, was [[introduced in 1959]]. 
The 310 is a nearly true pure vacuum-tube scope, but in the power supply there are some silicon rectifiers, and there is one germanium point contact diode in the circuit.  
The 310 uses printed-circuit boards but the 310A returned to ceramic strip construction. 
P2 [[phosphor]] was standard.  P1, P7 and P11 were also available.


''Is this the only time that a Tek design was moved from PCB back to ceramic strip?''
Early examples of the Tektronix Type 310A used commodity 3WPx CRTs.   
 
At some point in production, they switched to the Tek-made [[T3100]] CRT, which is compatible with the [[3WP2]].
<gallery>
Tek 310 on base.jpg | 310 on fan base
Tek_310a_cl.jpg
Wellenkino 310a.jpg | 310A
Tektronix-310a.jpg  | 310A
Tek 310 rear.jpg    | 310
Tek 310 front.jpg  | 310
</gallery>
 
This is a nearly true pure vacuum-tube scope, but in the power supply there are some silicon rectifiers
and in the circuit is one germanium point contact diode.
It is sometimes very useful because it contains a 1 kHz calibrator output with up to 100V level combined with a step attenuator.
 
Early examples of the Tektronix Type 310A used commodity 3WPx CRTs.  At some point in production,
they switched to the Tek-made [[T3100]] CRT, which is compatible with the [[3WP2]].


===310A changes===
Unlike later Tek instruments, where the incremental model designated by an “A” suffix only occurred with a significant specification or performance enhancement, the original 310 and 310A were essentially identical.   
Unlike later Tek instruments, where the incremental model designated by an “A” suffix only occurred with a significant specification or performance enhancement, the original 310 and 310A were essentially identical.   
They even shared the same manual and schematics.  The main difference was the wiring construction. ''needs to be checked - different tubes used according to the manuals''   
They even shared the same manual and schematics.  The main difference was the wiring construction. <small>''needs to be checked - different tubes used according to the manuals''  </small>


The original 310 pioneered the use of circuit board construction, rather than the trusted ceramic strip point to point wiring.   
The original 310 pioneered the use of circuit board construction, rather than the trusted ceramic strip point to point wiring.   
The circuit boards were two sided, however plated through hole technology to interconnect the layers had not been invented yet.  
The circuit boards were two-sided, however, Tektronix did not use through-hole plating although this had been introduced in 1947<ref>https://www.acdi.com/a-peek-at-the-history-of-pcbs</ref>.
Rather, all of the holes for component mounting and interconnect contained a rivet which was expanded in a press before the components were installed in the board.   
Rather, all of the holes for component mounting and interconnect contained a rivet which was expanded in a press before the components were installed in the board.   
The rivets themselves were not soldered to the copper foil traces, and relied on the pressure from the crimp to make contact.   
The rivets themselves were not soldered to the copper foil traces, and relied on the pressure from the crimp to make contact.   
This proved to be extremely unreliable, with many intermittent connections resulting in high warranty- and after-warranty failure.   
This proved to be extremely unreliable, with many intermittent connections resulting in high warranty- and after-warranty failure.   


The 310A model essentially used the identical circuit design, but returned to the trusted ceramic strip construction method.
The 310A model essentially used the identical circuit design, but returned to the trusted ceramic strip construction method.


The 310A also replaced the [[selenium rectifiers|selenium plate rectifiers]] in the power supply with silicon diodes.   
The 310A also replaced the [[selenium rectifiers|selenium plate rectifiers]] in the power supply with silicon diodes.   
Tek offered a retrofit kit, to be installed in the service centers, to upgrade older scopes with selenium rectifiers.
Tek offered a retrofit kit, to be installed in the service centers, to upgrade older scopes with selenium rectifiers.


During the lifespan of the 310, Tek evolved its color scheme.  The original 310 scopes had a case painted with a blue metallic hammer tone color.  Later units moved to the crinkled “Tek Blue” color still in use today.
===Other changes during production===
During the lifespan of the 310, Tek evolved its color scheme.   
The original 310 scopes had a case painted with a blue metallic hammer tone color.   
Later units moved to the crinkled “Tek Blue” color still in use today.


The scope cabinet was hinged to allow it to be opened like a book and operated for access to the circuitry for service purposes. 
Like most old Tektronix devices the mains transformer holds an indefinite(!) warranty.
The 310 and 310A were convection cooled, and required free access to air through the cabinet vent holes to avoid overheating. 
It contained a thermal cut-out to protect it from damage if the supply of cooling air was inadequate. 
The scope has feet on the rear panel to allow it to be operated on the floor with the front panel facing up, but the manual warns against prolonged operation in this orientation. 
Shortly after introduction, Tek offered a Fan Base accessory, which the scope would sit on and provide forced air for better cooling.
While the scope had universal primary wiring options, the fan base did not.  Separate models were available for 115 VAC or 230 VAC operation.
 
Like most old Tektronix devices the mains transformer holds an indefinite(!) warranty, so hold an eye to that.  The device goes away on ebay here often for 30€ to 60€.
 
Fun on
*But its not quite clear what the "indefinite" means, live long for the device, the first owner, the company (Tek), the universe, or the transformer itself? ;-)
Fun off


==Links==
==Links==
* [http://richardsears.wordpress.com/2011/11/18/tektronix-310a/ Richard Sears: Tektronix 310 and 310A]
* [https://richardsears.wordpress.com/2011/11/18/tektronix-310a/ Richard Sears: Tektronix 310 and 310A]
* A Tek 310 restoration @ YouTube: [https://www.youtube.com/watch?v=Ef-6Vfx1oiY Part 1] / [https://www.youtube.com/watch?v=6HG49aX_TlM Part 2]
* A Tek 310 restoration @ YouTube: [https://www.youtube.com/watch?v=Ef-6Vfx1oiY Part 1] / [https://www.youtube.com/watch?v=6HG49aX_TlM Part 2]


==Pictures==
==Pictures==
'''310'''
<gallery>
310 1.jpg                  | Right front
310 2.jpg                  | Front
310 3.jpg                  | Rear
310 4.jpg                  | Model
310 5.jpg                  | Right rear
Tek_310a_cl.jpg
Tek 310 rear.jpg          |
Tek 310 front.jpg          |
Tek 310 ibm prop.jpg      | made for IBM
Tek 310 top inside.jpg    | top inside
Tek 310 left inside.jpg    | left inside
Tek 310 right internal.jpg | right internal
Tek 310 rear.jpg          | rear
Tek 310 bottom.jpg        | bottom
Tek 310 right external.jpg | right external
Tek 310 left external.jpg  | left external
Tek 310 on base.jpg        | 310 on fan base
Tek 310a carrybag left.jpg | Carrying bag for 310, left
Tek 310a carrybag top.jpg  | Carrying bag for 310, top
</gallery>
'''310A'''
<gallery>
<gallery>
Tek_310A.jpg|310A Front view
Tek_310A.jpg                 | Front view
310A_right.jpg|310A Right internal
310A_right.jpg               | Right internal
310A_foldoff.jpg|310A Folded off internal
310A_foldoff.jpg             | Folded off internal
310A_left.jpg|310A Left internal
310A_left.jpg                 | Left internal
310A_top.jpg|310A Top internal
310A_top.jpg                 | Top internal
310A_bottom.jpg|310A Bottom special slot to access sweep trigger tubes
310A_bottom.jpg               | Bottom special slot to access sweep trigger tubes
Tek_310A_Underside2.jpg | 310A Bottom special slot to access sweep trigger tubes
Tek_310A_Underside2.jpg       | Bottom special slot to access sweep trigger tubes
310A_back.jpg|310A Rear view
310A_back.jpg                 | Rear view
warranty.jpg|310A indefinite warranty to the Tektronix manufactured transformer
Wellenkino 310a.jpg           | 310A
310 1.jpg|310 right front
Tektronix-310a.jpg           | 310A
310 2.jpg|310 front
Tek 310a left internal.jpg   | 310A Left Internal
310 3.jpg|310 rear
Tek 310a right internal.jpg   | 310A Right Internal
310 4.jpg|310 model
310 5.jpg|310 right rear
Tek 310 base.jpg|fan base in '57 catalog
Tek 310a left internal.jpg|310A Left Internal
Tek 310a right internal.jpg|310A Right Internal
Tek 310 ibm prop.jpg|310 made for IBM
Tek 310 top inside.jpg|310 top inside
Tek 310 left inside.jpg|310 left inside
Tek 310 right internal.jpg|310 right internal
Tek 310 rear.jpg|310 rear
Tek 310 bottom.jpg|310 bottom
Tek 310 right external.jpg|310 right external
Tek 310 left external.jpg|310 left external
Tek 310a top clean.jpg|310A top
Tek 310a rear2.jpg|310A rear
Tek 310a right internal2.jpg|310A right internal


ANUSM89B_1.jpeg|Frontview AN/USM89B from Hickok
ANUSM89B_2.jpeg| Sideview AN/USM89B from Hickok
ANUSM89B_3.jpeg| type-plate of AN/USM89B from Hickok


Tek ncr 310a case.jpg|Case for 310A
 
Tek 310a in ncr case.jpg|310A in case
Tek 310a top clean.jpg        | 310A top
Tek 310a with case.jpg|Tek 310A with case
Tek 310a rear2.jpg            | 310A rear
Tek 310a carrybag left.jpg|Carrying bag for 310, left
Tek 310a right internal2.jpg  | 310A right internal
Tek 310a carrybag top.jpg|Carrying bag for 310, top
 
Tek 310a carrybag exposed.jpg|310A inside carrying bag, exposed cushion
Tek ncr 310a case.jpg         | Case for 310A
Tek 310a in ncr case.jpg     | 310A in case
Tek 310a with case.jpg       | Tek 310A with case
Tek 310a carrybag exposed.jpg | 310A inside carrying bag, exposed cushion
warranty.jpg                 | indefinite warranty to the Tektronix manufactured transformer
</gallery>
 
'''Hickok AN/USM89B'''
<gallery>
ANUSM89B_1.jpeg | Front view
ANUSM89B_2.jpeg | Side view
ANUSM89B_3.jpeg | Type plate
</gallery>
</gallery>


{{Parts|310}}
{{Parts|310}}
{{Parts|310A}}
{{Parts|310A}}
==References==
<references />


[[Category:Monolithic tube scopes]]
[[Category:Monolithic tube scopes]]
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/81303"

Navigation menu