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561: Difference between revisions
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It supports the 50, 60 and 70 series of plug-ins, with the highest system bandwidth of 4 MHz. | It supports the 50, 60 and 70 series of plug-ins, with the highest system bandwidth of 4 MHz. | ||
The 561 uses the [[T5032]] CRT, which has a glass envelope. The 561 and later versions also had a front panel calibrator signal for calibrating the plugins to the mainframe. The 561 calibrator has 18 attenuation steps and can output a square wave with an amplitude of 200μV to 100V. | The 561 uses the [[T5032]] CRT, which has a glass envelope. The 561 and later versions also had a front panel calibrator signal for calibrating the plugins to the mainframe. The 561 calibrator has 18 attenuation steps and can output a square wave with an amplitude of 200μV to 100V. | ||
Early serial numbers of the 561 use a neon bulb (B633) in the -100V regulator circuit, however, later versions (including the 561A) used a transistor. The modification for early units is documented at the end of the RM561 manual. | |||
===561A=== | ===561A=== | ||