[Milsurplus] 60/400 cycle indicator use?

[Richard Brunner]

Eric Jones wrote:
> de N4TGC Eric
> 
> I have a couple of little "JBT" brand model 15-FHAC 'meters' that have 
> vibrating reeds for 60 & 400 cycle current.  Are these direct-reading 
> off the line, or is there a current/voltage-limiting network needed?  

They connect directly to the line, but check the voltage.  All the ones 
I have seen are 120 volt.

Richard Brunner, AA1P