> Chuck Kimball <n0...@...> wrote:
> The 100 to 200ma to hold the coil in on some of the older
> LVDs can be more than the entire load at some sites.
You are right... but what's running through the 75 Amp rated
contacts is probably more than most of the lower cost solid
state LVD's can honestly handle.
I designed a solid state LVD conversion I'm currently testing
and the entire circuit draw is less than 10mA for the rated
capacity, which for a "Solid State LVD" seems to be the normal
expected current value.
> I run several solar powered digipeater sites where the
> standby current is <50ma.
Nice to have the standby current value so low...
> Last summer I ran across the Samlex LVD's that are all
> solid state, and the load is only 4ma.
> http://www.samlex.com/pdf/products/batteryguard_en.pdf
Very nice... Newmar also has a solid state version similar
to the Samlex... I just mentioned the LVD 12-30 relay version
as one example of what I use. The Newmar Circuit has been
very robust at sites which have frequent lightning strikes
at or nearby.
> Tessco carries the 40A version for about $65 (Gold Price)
> (Non stock/special order).
A great price for a 40 Amp Version and the specs look very
promising. I'll be looking into the pricing and availability
of the BG-60, BG-100 and BG-200 units.
The problem with non-stock is how long before they stock or
are able to "get them in".
> I have had good luck with them so far.
> Chuck
> n0nhj
Great lead Chuck, thanks a mucho... if you're not building
LVD's from kits or scratch/parts the really low prices of
some pre-built commercial units almost make it too easy.
It's getting to be easy finding so many circuits and devices
at such low prices it often doesn't make sense to build them
unless you really have the extra time and the desire. I'm
hoping people won't lose the desire...
cheers,
s.
