The hi-res images may cause Netscape to crash. If you have this problem, then configure Netscape to use a different viewer for gif images. LView is free and works well. Look for it at Simtel
From the Sylvania Technical Manual
The 7189A is an improved version of type 6BQ5/EL84. It has identical characteristics, but is designed to withstand higher plate voltages and higher plate dissipation.
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