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* [[Media:070-6499-00.pdf|Tektronix 2225 Operators and Options, French]] | * [[Media:070-6499-00.pdf|Tektronix 2225 Operators and Options, French]] | ||
* [[Media:070-6299-00.pdf|Tektronix 2225 Service]] (OCR) | * [[Media:070-6299-00.pdf|Tektronix 2225 Service]] (OCR) | ||
* [https://www.hakanh.com/dl/docs/troubleshooting_tips_on_2200_ps.pdf Troubleshooting tips on 2200 PSU] | * [https://www.hakanh.com/dl/docs/troubleshooting_tips_on_2200_ps.pdf Troubleshooting tips on 2200 PSU] | ||
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The '''Tektronix 2225''' is a 50 MHz dual-channel analog scope. | The '''Tektronix 2225''' is a 50 MHz dual-channel analog scope. | ||
It has a single timebase with | It has a single timebase with a ×5/×10/×50 magnifier that allows displaying normal and magnified traces together on the screen, but has no delay feature, only an X position control. | ||
The Y inputs feature a | The Y inputs feature a ×10 magnifier that decreases bandwidth to 5 MHz but increases sensitivity to 0.5 mV/Div. | ||
There is a '''2225ST''' model that adds digital storage. ''Further information needed'' | There is a '''2225ST''' model that adds digital storage. ''Further information needed'' | ||
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}} | }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Prices== | ==Prices== | ||
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* [https://www.eevblog.com/2011/08/17/eevblog-196-tektronix-2225-analog-oscilloscope/ Tektronix 2225 Analog Oscilloscope - EEVblog 196] | * [https://www.eevblog.com/2011/08/17/eevblog-196-tektronix-2225-analog-oscilloscope/ Tektronix 2225 Analog Oscilloscope - EEVblog 196] | ||
* [https://www.eevblog.com/2011/10/17/eevblog-208-tektronix-2225-oscilloscope-teardown-and-calibration/ Tektronix 2225 Oscilloscope Teardown and Calibration - EEVblog 208] | * [https://www.eevblog.com/2011/10/17/eevblog-208-tektronix-2225-oscilloscope-teardown-and-calibration/ Tektronix 2225 Oscilloscope Teardown and Calibration - EEVblog 208] | ||
==Internals== | |||
The 2225 power supply uses a [[120-1630-00]] mains-frequency toroidal transformer to produce a 60 V DC supply, followed by two TL494-driven switching regulators. | |||
The scope uses transistor array ICs like the CA3102, [[CA3046]] and CA3054, but no Tek custom ICs. | |||
==Pictures== | ==Pictures== | ||
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<gallery> | <gallery> | ||
Tek 2225.jpg | Tek 2225.jpg | ||
Tek 2225 int 1.jpg | |||
Tek 2225 int 2.jpg | |||
Tek 2225 int 3.jpg | |||
</gallery> | </gallery> | ||
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Tek 2225ST 1.jpg | Tek 2225ST 1.jpg | ||
Tek 2225ST 2.jpg | Tek 2225ST 2.jpg | ||
Tek 2225ST 3.jpg | |||
Tek 2225ST 4.jpg | |||
Tek 2225ST 5.jpg | |||
</gallery> | </gallery> | ||
{{CRTs|2225}} | {{CRTs|2225}} | ||