[Boatanchors] Long-term AC voltage monitor

[Richard Solomon]

I use an RCA WV-120B Power Line Monitor. Reacts very quickly to Line 
Voltage
changes.

They often come up on auction sites.

73, Dick, W1KSZ


On 1/5/2015 10:10 AM, Rob Atkinson wrote:
> To test to see if you need to buck down the line v., put your vintage
> gear directly on the line, fire it up and measure the filament v.
> Sometimes you can get the 6.3 v. to test, on a line to a dial lamp, if
> you are dealing with a receiver for example.  If you see much over 6.3
> you need to buck it down.  In a lot of places the v. is seasonally
> higher.  It can be lower in summer because all the A/C loads are on.
> If you see 120 v. on the line and you have over 6.3 v. (or whatever
> the filament is supposed to be) you need to get the line v. down
> because it will probably go higher than 120 at some point.
>
> This all assumes you don't want to have to buy new tubes every few
> years.  Excessive filament v. is what kills tubes.
>
> 73
>
> Rob
> K5UJ
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