On Jun 19, 3:29*pm, wrote:

I prefer the 'old' style - zig-zag lines for resistors, parallel lines
for non-polar capacitors, etc.

That's OK for digital work, but for RF or high Z, your capacitor
symbol needs to have one line, one curve, as appropriate.

Another subtlety: if the tube symbol has a dot, it's OK to see
a plate glow. No dot, that glow means ... too much current.