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The '''Tektronix Type 543''' (rack mount '''RM43''') is an all-tube 30 MHz scope [[introduced in 1958]]. It takes | The '''Tektronix Type 543''' (rack mount '''RM43''') is an all-tube 30 MHz scope [[introduced in 1958]]. It takes | ||
[[letter-series and 1-series plug-ins]]. It is similar to a [[545]], but without the second, delayed timebase. Instead, it has a range of horizontal magnifiers from ×2 to ×100. | [[letter-series and 1-series plug-ins]]. It is similar to a [[545]], but without the second, delayed timebase. Instead, it has a range of horizontal magnifiers from ×2 to ×100. | ||
The 543 has the same six-stage balanced [[distributed amplifier]] (twelve [[6DK6]] tubes) as the 545, driving a lumped L/C delay line just before the deflection plates. | |||
While the 545 has two non-calibrated X-input sensitivities, the 543 has an X input with calibrated deflection sensitivity of 0.1 V/cm, 1 V/cm, or 10 V/cm. | |||
Total acceleration voltage on the CRT is 10 kV. The CRT power supply uses five [[5642]] HV tube diodes. | |||
The standard CRT for the 543 is the [[T65]] with P2 [[phosphor]], part number 154-175. | The standard CRT for the 543 is the [[T65]] with P2 [[phosphor]], part number 154-175. | ||
The '''543B''' is a tube/transistor hybrid scope. The vertical amplifier has a [[6DJ8]] cathode follower stage followed by two transistor/tube cascode stages with a 186 Ω [[delay line]] | The '''543B''' is a tube/transistor hybrid scope. The vertical amplifier has a [[6DJ8]] cathode follower stage followed by two transistor/tube cascode stages with a 186 Ω [[delay line]] in-between. The standard CRT for the 543B is part number [[154-0478-00]], also known as the T5470-31-2. | ||
==Specifications== | ==Specifications== |