[Amps] Back with anohter question - Ameritron 811H

[Dan]

I own a Ameritron 811H. It really does very well giving me full rated output and very good reports. 
Here is the question/problem.. I do have what I consider low AC line voltage. I have monitored my line voltage and see anywhere from 120 volts peak during the night to a more normal 114 volts some times less. When I turn on the AMP I do get a quick small drop of between 111 to 12 volts AC but it recovers tot he average at the time very quickly.
On the AMP HV I see a normal of 1700 maybe slightly higher to 1725. On transmit I see a drop to 1450 volts or so on voice peaks. All of this from what I have read is normal for the AMP. I do have the transformer tapped at 110 volts lowering it from the factory 120 volts as when I first got the amp the HV numbers were about 100 to 120 volts less.

They question I have is could these lower voltages be the cause of a problem I have on my computer (on same cricuit) sometimes rebooting when I fire the AMP up. I do as I said have a quick voltage when the amp is first switched on and seems if the numbers are on th elower side that is too much for the computer and is reboots itself. however, after AMP is on and even while tuning it the computer is happy and works fine.

One last item. I did blow a fuse the other day when I switched the AMP on. I replaced that fuse and all is fine might not be related but a friedn said he thought the fuse blowing could also be the cause or related to low voltage as at the time of switchign on the transformer in the AMP draws more current since the voltage might go low.
Again, the weird thing is the AMP tunes great works great and seems to otherwise be just fine. It seem tha inital kickof the switchign on the other equipment on the circuit are just not happy. I do have a seond computer on same circuit and a small refrig. I have had both computer do a reboot at AMP switch on...

repeating one other item after the AMP is on all equipment seems to be fine even whenI tune the amp the computers run great..

Woudl an isolation transformer or line conditioner be the fix here? if so any suggested brands rating etc.. Any ideas??

Thanks