7A19

From TekWiki
Revision as of 10:21, 20 August 2014 by Peter (talk | contribs) (year per July 1971 catalog)
Jump to navigation Jump to search

Template:Plugin Sidebar 2

The 7A19 is a one-channel vertical plug-in for 7000-series scopes.

An option (#4) was available that added a variable signal delay, intended to match timing between multiple channels.

The pre-charge setting on the input coupling switch is intended for situations where there might be residual charge on the input coupling capacitor that could overload the input. To use it, one sets the switch to PRE-CHG before connecting the inout signal, then waits two seconds before switching to AC (LF point is 1 kHz). The PRE-CHG setting also serves as a ×100 attenuator having a 5 kΩ input impedance in series with 2 μF, extending LF cutoff down to 20 Hz. In the AC GND position, the input is disconnected from the amplifier and terminated in a capacitively coupled 50 Ω load.

The 7A19 uses the 155-0068-00 amplifier IC.

Specifications

Key Specifications

Input impedance 50 Ω
Bandwidth 600 MHz (500 MHz in 7904)
Deflection 10 mV/Div to 1 V/Div, 1—2—5 sequence. Pre-charge circuit may be used as a calibrated ×100 attenuator.
Maximum input 2 W average or 50 Div, in AC mode 100 V DC+peak AC
Variable delay (Opt.4) -0.5 ns to +0.5 ns

Pictures

Earlier model

Later model (B030000+)