Model 5261A video amplifier.
As was the case with the Model 5257A Transfer
Oscillator discussed in lesson 4, a Model 10590A Plug-in adapter is required
energize the counter and install the plug-in adapter. Slide the Model 5261A
into the compartment; make certain the plug-in is properly aligned and
tighten the locking screws.
c. Controls, Connectors and Indicators.
Figure 2 indicates the
functions of the connectors, meter and sensitivity control on the Model
5261A front panel.
(1) Input. This is a BNC connector for application of signals from
1-100 mV rms between 10 Hz and 50 MHz.
This control is calibrated in millivolts and
output to the counter within acceptable limits as indicated on