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Original DOOGEE DG150 TITANS 3.5 inch Waterproof Smart Phone MTK6572 Dual Core 512MB RAM 4GB ROM Android 4.2 GPS 3G WCDMA
Highlight:
3.5inch IPS capacitance screen,320x480pixels
MTK6572 Cortex A7 Dual core CPU,1.2GHz
512MB RAM +4GB ROM
Dual camera:1.3MP front camera and 2.0MP back camera with flashlight
Dual SIM Card Dual Standby
Sturdy Appearance Design,has pretty good resistant to water and dust proof function
www.originalphone.net/hot-brand/doogee-smartphone/doogee-...
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
Get our Active Probe AGILENT / HP 1144A at Alliance Test Equipment. It provides a combination of high input resistance, high bandwidth and low input capacitance. It provides minimal circuit loading at high and low frequencies. For more information call on 508-671-9970 by visit at www.alliancetesteq.com/.
Power-on selftest and battery voltage.
Digital component tester (tests analog components, has a digital display) for $18.43.
www.ebay.com/itm/2014-Mega328-Transistor-Tester-Diode-Tri...
Out of six transformers on this board, one failed to activate properly. The issue traced back to low capacitance and ESR in nearby capacitors, which prevented sufficient startup voltage. This kind of fault often slips past visual checks but becomes clear with proper diagnostic tools. Once the capacitors were replaced, the transformer resumed normal function. We offer expert power circuit repair and IT support in Miami Beach.
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Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
Original DOOGEE DG150 TITANS 3.5 inch Waterproof Smart Phone MTK6572 Dual Core 512MB RAM 4GB ROM Android 4.2 GPS 3G WCDMA
Highlight:
3.5inch IPS capacitance screen,320x480pixels
MTK6572 Cortex A7 Dual core CPU,1.2GHz
512MB RAM +4GB ROM
Dual camera:1.3MP front camera and 2.0MP back camera with flashlight
Dual SIM Card Dual Standby
Sturdy Appearance Design,has pretty good resistant to water and dust proof function
www.originalphone.net/hot-brand/doogee-smartphone/doogee-...
(One in a series of related and sequential images)
I decided to convert this magnetically-operated Pulsar Ladies’ Cushion-shaped wrist watch (Model 2407-2) over to Touch Command in operation.
I settled on this route as that the module that came with the watch was damaged by battery corrosion, and I chose not to send it out for rebuilding.
I purchased some new-old-stock Pulsar 801 modules from an enormously helpful, former owner of a Pulsar repair facility, with the hope that I could retrofit one of those 801 modules, to this Model 2407-2 watch.
Due to the 801 module’s design, its LED display is situated higher in the Time Screen than the original display was, but this is fine.
I removed the original module and the two original, magnetic-type Command Buttons from the watch.
I decided to make new and fixed-in-position, capacitance-enabled buttons that would utilize (but not alter) the existing holes for buttons in the watchcase.
In so doing, I have preserved the ability to switch back to a magnetically-operated watch in the future, should ever I decide to.
I no longer have the access to materials and tools like I used to, so I obtained my button-making stock from the tangs of a stainless steel, steak-carving fork.
I carved and fitted these replacement buttons by hand, using the tools that I have available to me at this point in time.
The buttons are seen semi-finished in images where they are not mounted.
These buttons are now potted in epoxy, so not much effort was exerted to finish the circumferential profile of them to a high level.
Ultimately, the crown of them was finished consistent with the finish of the watch case.
The recipient watch was manufactured in approximately late 1974 and early 1975 and I decided to leave some of the ‘honest wear’ in the restored watchcase.
Each button makes the mechanical and electrical connection of a copper wire, via two tabs that were crimped over the wire like a solderless connector would be.
These copper wires were then shaped to make contact with the new module’s contacts for the time and the date functions.
Both of the copper wires loop in different directions, with one being open at the top and one being closed at the top.
This was done so that the module’s bushing could be swung into place over the contacts.
The bushing hooked under the 12 o’clock contact, and swung over the 6 o’clock one.
The bushing was needed due to the smaller outside diameter of the 801 Module in a watchcase that wasn’t intended for it.
The bushing was made from the plunger cap of a medical syringe.
I made a new battery strap for the 801 module as that the batteries have a different size and layout from the original module.
I use 393/309 batteries with this 801 module.
A wealth of information regarding such Pulsar watches can be found at this site:
Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
YXC YSX221SL
HOT-SALE FREQUENCIES: 16MHz, 24MHz, 25MHz
DIMENSIONS: 2.55*2.05*0.55mm
DATE CODE: 19+
PACKAGE: 3000 pieces/Reel
PARAMETERS:
1. Frequency range: 12-48MHz
2. SMD/SMT crystal unit, 4 pin 2520 type
3. Excellent for reducing EMI effect
4. High precision and frequency stability
5. Customize service is supported
6. Normal load capacitance: 8pf/9pf/12pf/18pf/20pf
7. Normal temperature: -40~+85℃
8. Standard frequency tolerance: ±10PPM
9. Applications: Mobile phone, Bluetooth, W-LAN ISM band radio
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
(One in a series of related and sequential images)
I decided to convert this magnetically-operated Pulsar Ladies’ Cushion-shaped wrist watch (Model 2407-2) over to Touch Command in operation.
I settled on this route as that the module that came with the watch was damaged by battery corrosion, and I chose not to send it out for rebuilding.
I purchased some new-old-stock Pulsar 801 modules from an enormously helpful, former owner of a Pulsar repair facility, with the hope that I could retrofit one of those 801 modules, to this Model 2407-2 watch.
Due to the 801 module’s design, its LED display is situated higher in the Time Screen than the original display was, but this is fine.
I removed the original module and the two original, magnetic-type Command Buttons from the watch.
I decided to make new and fixed-in-position, capacitance-enabled buttons that would utilize (but not alter) the existing holes for buttons in the watchcase.
In so doing, I have preserved the ability to switch back to a magnetically-operated watch in the future, should ever I decide to.
I no longer have the access to materials and tools like I used to, so I obtained my button-making stock from the tangs of a stainless steel, steak-carving fork.
I carved and fitted these replacement buttons by hand, using the tools that I have available to me at this point in time.
The buttons are seen semi-finished in images where they are not mounted.
These buttons are now potted in epoxy, so not much effort was exerted to finish the circumferential profile of them to a high level.
Ultimately, the crown of them was finished consistent with the finish of the watch case.
The recipient watch was manufactured in approximatley late 1974 and early 1975 and I decided to leave some of the ‘honest wear’ in the restored watchcase.
Each button makes the mechanical and electrical connection of a copper wire, via two tabs that were crimped over the wire like a solderless connector would be.
These copper wires were then shaped to make contact with the new module’s contacts for the time and the date functions.
Both of the copper wires loop in different directions, with one being open at the top and one being closed at the top.
This was done so that the module’s bushing could be swung into place over the contacts.
The bushing hooked under the 12 o’clock contact, and swung over the 6 o’clock one.
The bushing was needed due to the smaller outside diameter of the 801 Module in a watchcase that wasn’t intended for it.
The bushing was made from the plunger cap of a medical syringe.
I made a new battery strap for the 801 module as that the batteries have a different size and layout from the original module.
I use 393/309 batteries with this 801 module.
A wealth of information regarding such Pulsar watches can be found at this site:
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
SHENZHEN YANGXING TECHNOLOGY CO., LTD
QQ: 3003161286 / Wechat: star665121
Whatsapp: 0086-18565837236
Skype: live:yxcxtal123
E-mail: zxl@yangxing.hk
Website: www.yxcxtal.com
Original DOOGEE DG150 TITANS 3.5 inch Waterproof Smart Phone MTK6572 Dual Core 512MB RAM 4GB ROM Android 4.2 GPS 3G WCDMA
Highlight:
3.5inch IPS capacitance screen,320x480pixels
MTK6572 Cortex A7 Dual core CPU,1.2GHz
512MB RAM +4GB ROM
Dual camera:1.3MP front camera and 2.0MP back camera with flashlight
Dual SIM Card Dual Standby
Sturdy Appearance Design,has pretty good resistant to water and dust proof function
www.originalphone.net/hot-brand/doogee-smartphone/doogee-...
(One in a series of related and sequential images)
I decided to convert this magnetically-operated Pulsar Ladies’ Cushion-shaped wrist watch (Model 2407-2) over to Touch Command in operation.
I settled on this route as that the module that came with the watch was damaged by battery corrosion, and I chose not to send it out for rebuilding.
I purchased some new-old-stock Pulsar 801 modules from an enormously helpful, former owner of a Pulsar repair facility, with the hope that I could retrofit one of those 801 modules, to this Model 2407-2 watch.
Due to the 801 module’s design, its LED display is situated higher in the Time Screen than the original display was, but this is fine.
I removed the original module and the two original, magnetic-type Command Buttons from the watch.
I decided to make new and fixed-in-position, capacitance-enabled buttons that would utilize (but not alter) the existing holes for buttons in the watchcase.
In so doing, I have preserved the ability to switch back to a magnetically-operated watch in the future, should ever I decide to.
I no longer have the access to materials and tools like I used to, so I obtained my button-making stock from the tangs of a stainless steel, steak-carving fork.
I carved and fitted these replacement buttons by hand, using the tools that I have available to me at this point in time.
The buttons are seen semi-finished in images where they are not mounted.
These buttons are now potted in epoxy, so not much effort was exerted to finish the circumferential profile of them to a high level.
Ultimately, the crown of them was finished consistent with the finish of the watch case.
The recipient watch was manufactured in approximately late 1974 and early 1975 and I decided to leave some of the ‘honest wear’ in the restored watchcase.
Each button makes the mechanical and electrical connection of a copper wire, via two tabs that were crimped over the wire like a solderless connector would be.
These copper wires were then shaped to make contact with the new module’s contacts for the time and the date functions.
Both of the copper wires loop in different directions, with one being open at the top and one being closed at the top.
This was done so that the module’s bushing could be swung into place over the contacts.
The bushing hooked under the 12 o’clock contact, and swung over the 6 o’clock one.
The bushing was needed due to the smaller outside diameter of the 801 Module in a watchcase that wasn’t intended for it.
The bushing was made from the plunger cap of a medical syringe.
I made a new battery strap for the 801 module as that the batteries have a different size and layout from the original module.
I use 393/309 batteries with this 801 module.
A wealth of information regarding such Pulsar watches can be found at this site:
Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
(One in a series of related and sequential images)
I decided to convert this magnetically-operated Pulsar Ladies’ Cushion-shaped wrist watch (Model 2407-2) over to Touch Command in operation.
I settled on this route as that the module that came with the watch was damaged by battery corrosion, and I chose not to send it out for rebuilding.
I purchased some new-old-stock Pulsar 801 modules from an enormously helpful, former owner of a Pulsar repair facility, with the hope that I could retrofit one of those 801 modules, to this Model 2407-2 watch.
Due to the 801 module’s design, its LED display is situated higher in the Time Screen than the original display was, but this is fine.
I removed the original module and the two original, magnetic-type Command Buttons from the watch.
I decided to make new and fixed-in-position, capacitance-enabled buttons that would utilize (but not alter) the existing holes for buttons in the watchcase.
In so doing, I have preserved the ability to switch back to a magnetically-operated watch in the future, should ever I decide to.
I no longer have the access to materials and tools like I used to, so I obtained my button-making stock from the tangs of a stainless steel, steak-carving fork.
I carved and fitted these replacement buttons by hand, using the tools that I have available to me at this point in time.
The buttons are seen semi-finished in images where they are not mounted.
These buttons are now potted in epoxy, so not much effort was exerted to finish the circumferential profile of them to a high level.
Ultimately, the crown of them was finished consistent with the finish of the watch case.
The recipient watch was manufactured in approximately late 1974 and early 1975 and I decided to leave some of the ‘honest wear’ in the restored watchcase.
Each button makes the mechanical and electrical connection of a copper wire, via two tabs that were crimped over the wire like a solderless connector would be.
These copper wires were then shaped to make contact with the new module’s contacts for the time and the date functions.
Both of the copper wires loop in different directions, with one being open at the top and one being closed at the top.
This was done so that the module’s bushing could be swung into place over the contacts.
The bushing hooked under the 12 o’clock contact, and swung over the 6 o’clock one.
The bushing was needed due to the smaller outside diameter of the 801 Module in a watchcase that wasn’t intended for it.
The bushing was made from the plunger cap of a medical syringe.
I made a new battery strap for the 801 module as that the batteries have a different size and layout from the original module.
I use 393/309 batteries with this 801 module.
A wealth of information regarding such Pulsar watches can be found at this site:
Students collecting data to determine the relationship between the Capacitance of a capacitor with the thickness of the dielectric inside. Also, they experimentally determine the electric permittivity of the dielectric.
HC-49SMD CRYSTAL UNITS for Frequency control timing devices
PARAMETERS:
1. SMD/SMT crystal unit, 2 pin type
2. Highly mass production capability
3. A great number of standard frequencies
4. Customize service is supported
5. Normal load capacitance: 20pf
6. Normal temperature: -20~+70℃
7. Standard frequency tolerance: ±20PPM
8. Applications: PC, STB, LCDM, and Cable Modem
Lynn Zheng/Overseas sale
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