Dual Beam Oscilloscope
What could I do with an oscilloscope?
Sitting outside the neighborhood garbage bin near my house is a large machine labeled as a "Type 551 Dual-Beam Oscilloscope". It looks very interesting, but I'm wondering if it's worth it to try to carry it up the stairs into my apartment. What does it do? What interesting things could I use it for? If it's still working, how much is it worth?
You could like at electronic signals, like in a radio, or computer, or television. But without a schematic AND considerable electronic knowledge, they would be meaningless to you. Not to mention that, if reading the WRONG signal you can blow up the television or radio or computer!
Those old Type 551 were popular in television repair shops years ago. Since the new television ara bout 75% digital (and flat screens are 100% digital) the old 551 is close to useless now. Total worth: $0.00
A look at what is currently available on eBay
 Philips PM 3243 10 MHz Dual-Beam Storage Oscilloscope US $444.41 
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 Tektronix 5103N Oscilloscope Chassis D12 Dual Beam US $179.00
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 Tektronix R5030 Dual Beam Oscilloscope Op/Sv Manual US $24.99
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 TEKTRONIX 5112 DUAL BEAM OSCILLOSCOPE INSTRUCTION MANUAL US $39.99
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 Tektronix 502 Dual-Beam Oscilloscope Instruction Manual US $29.99
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 TEKTRONIX Dual Beam Oscilloscope Type 551 US $120.00
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 OFFER & WIN Tektronix 7844 Dual Beam Oscilloscope US $600.00
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 Tektronix Type 565 Dual-Beam Oscilloscope 1964 print Ad US $9.99
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 Tektronix 551 Dual Beam Oscilloscope Manual US $19.99
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 Tektronix D12 Dual Beam Storage Oscilloscope US $499.99
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 Metermaster 65625 Dual Beam Oscilloscope US $80.00
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