HP 400EL AC voltmeter

[carlos2007]

Hello all,

 Recently I am in the process of  making alignments in some HF receivers, Panasonic RF-2200, Drake R4B and SPR4, need to have the IF, mixers, premixers preamps and other RF parts been calibrated.

 I have already purchased a TinySA signal generator and a Sanwa multimeter in order to start but I have realizad that I had hidden in a cupboard and old HP 400EL AC voltmeter and I have some doubts in how to use it.

VTVM is across voice coil in order to read the maximum output in the scale. Could I place the HP in the same configuration? Is it more accurate than the analog multimeter?  One think that bother me is that I do not understand the range switch and display.

Only works to 10Mhz or may it be used to 30 Mhz (shortwave bands)

Any help and advice is greatly wellcome I am a bit lost about this device.
Thanks in advance.