Difference between revisions of "Octopus Tester"
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| − | * [http://n5bl.org/pipermail/builders_n5bl.org/attachments/20150514/6b8107e1/attachment-0001.pdf | + | [[file:P1798-crop-720px.jpg]] |
| + | |||
| + | [[file:P1070804-crop-720px.jpg]] | ||
| + | |||
| + | == Features == | ||
| + | |||
| + | * Classic Octopus Tester | ||
| + | ** Based on [http://n5bl.org/pipermail/builders_n5bl.org/attachments/20150514/6b8107e1/attachment-0001.pdf design example (N5BL)] | ||
| + | * Scope set to X-Y for voltage-vs-current measurement of part | ||
| + | ** Look at scope pattern for device signature | ||
| + | * Out of circuit component tester | ||
| + | ** Useful for matching parts like diodes | ||
| + | * In circuit component tester | ||
| + | ** Test 2 units and compare signatures on scope | ||
* Use 6.3V "filament" transformer | * Use 6.3V "filament" transformer | ||
| + | ** 8.91V - Vpeak | ||
| + | ** 17.82V - Vpeak-peak | ||
| + | ** [https://www.mouser.com/ProductDetail/Triad-Magnetics/F-13X?qs=b1anAsPanWz99oSBmlGHww%3D%3D Typical transformer] | ||
| + | *** 1.38 in L, 2.38 in W, 1.38 in H | ||
| + | * 1mA, 10mA "scale" switch | ||
| + | ** Pot adjustments to set current (accommodate transformer and line voltage variances) | ||
* 2 BNC jacks | * 2 BNC jacks | ||
| + | ** Timebase = XY | ||
** Connect to XY on scope (X=CH1, Y=CH2) | ** Connect to XY on scope (X=CH1, Y=CH2) | ||
| + | ** CH2 gets set to INVERT | ||
* Plus, Minus Banana jacks | * Plus, Minus Banana jacks | ||
* AC powered | * AC powered | ||
| − | * C13 jack with switch | + | ** C13 jack with switch |
| − | * Fuse | + | ** 1A Fuse |
* Build into [https://www.mouser.com/ProductDetail/Bud-Industries/CU-1945?qs=YiMYZbOAr7eNf%252BiShkuUjg%3D%3D Bud Box CU-1945] | * Build into [https://www.mouser.com/ProductDetail/Bud-Industries/CU-1945?qs=YiMYZbOAr7eNf%252BiShkuUjg%3D%3D Bud Box CU-1945] | ||
| + | ** 6.21 in W x 3.76 in D x 2 in H | ||
| + | ** Comes with screws and rubber feet | ||
| + | |||
| + | == X-Y Patterns == | ||
| + | |||
| + | [[file:XY_Patterns.PNG]] | ||
| + | |||
| + | === Resistors === | ||
| + | |||
| + | * Resistor - slope line | ||
| + | ** Slope = resistance value | ||
| + | * 1 mA setting = 8901 ohms, 1:1 slope | ||
| + | * 10 mA setting = 890 ohms, 1:1 slope | ||
| + | |||
| + | [[file:OctopusTester_Resistor.png]] | ||
| + | |||
| + | === Capacitors === | ||
| + | |||
| + | * Oval shape | ||
| + | * 0.3uF, 60 Hz, 8841 ohms | ||
| + | * 3uF, 60 Hz, 884 ohms | ||
| + | * 1 uF cap, 1mA selection | ||
| + | |||
| + | [[file:OctopusTester_Cap_1uF-01.png]] | ||
| + | |||
| + | * 1 uF cap, 10mA selection | ||
| + | |||
| + | [[file:OctopusTester_Cap_1uF-02.png]] | ||
| + | |||
| + | === Zener === | ||
| + | |||
| + | * 3.9V Zener | ||
| + | * 1 mA switch setting | ||
| + | |||
| + | [[file:OctopusTester_Zener-01.png]] | ||
| + | |||
| + | * 10 mA switch setting | ||
| + | |||
| + | [[file:OctopusTester_Zener-02.png]] | ||
== Schematics == | == Schematics == | ||
| − | [[file: | + | [[file:OctopusTester_SCHEM.PNG]] |
| − | == | + | * Adjust RV1/RV2 for total resistance (fixed resistor plus pot) |
| + | ** 891 - 1 mA switch setting (RV2) | ||
| + | ** 8910 - 10mA switch setting (RV1) | ||
| + | |||
| + | == Cutouts on Bud Box CU-1945 == | ||
| + | |||
| + | [[FILE:OctopusTester_FRONT-BACK.PNG]] | ||
| + | |||
| + | == Videos == | ||
<video type="youtube">Gwo3pEH7hUE</video> | <video type="youtube">Gwo3pEH7hUE</video> | ||
| − | == | + | <video type="youtube">EaipFdk67HE</video> |
| + | |||
| + | <video type="youtube">a1HgshaEbaw</video> | ||
| + | |||
| + | <video type="youtube">5ppFpU5K2WY</video> | ||
| − | + | <video type="youtube">R95f9gGFUGI</video> | |
Revision as of 18:06, 5 September 2021
Contents
Features
- Classic Octopus Tester
- Based on design example (N5BL)
- Scope set to X-Y for voltage-vs-current measurement of part
- Look at scope pattern for device signature
- Out of circuit component tester
- Useful for matching parts like diodes
- In circuit component tester
- Test 2 units and compare signatures on scope
- Use 6.3V "filament" transformer
- 8.91V - Vpeak
- 17.82V - Vpeak-peak
- Typical transformer
- 1.38 in L, 2.38 in W, 1.38 in H
- 1mA, 10mA "scale" switch
- Pot adjustments to set current (accommodate transformer and line voltage variances)
- 2 BNC jacks
- Timebase = XY
- Connect to XY on scope (X=CH1, Y=CH2)
- CH2 gets set to INVERT
- Plus, Minus Banana jacks
- AC powered
- C13 jack with switch
- 1A Fuse
- Build into Bud Box CU-1945
- 6.21 in W x 3.76 in D x 2 in H
- Comes with screws and rubber feet
X-Y Patterns
Resistors
- Resistor - slope line
- Slope = resistance value
- 1 mA setting = 8901 ohms, 1:1 slope
- 10 mA setting = 890 ohms, 1:1 slope
Capacitors
- Oval shape
- 0.3uF, 60 Hz, 8841 ohms
- 3uF, 60 Hz, 884 ohms
- 1 uF cap, 1mA selection
- 1 uF cap, 10mA selection
Zener
- 3.9V Zener
- 1 mA switch setting
- 10 mA switch setting
Schematics
- Adjust RV1/RV2 for total resistance (fixed resistor plus pot)
- 891 - 1 mA switch setting (RV2)
- 8910 - 10mA switch setting (RV1)
Cutouts on Bud Box CU-1945
Videos
