The benefit to using the 1819 is that you can get it at Radio Shack.
One of them doesn't put out enough light.
There is a solution. Buy a second socket and parallel two of 1819's.
It then produces adequate light and spreads it out more evenly over
the meter face.
As you point out the expected lifetime is quite a bit longer.
73 de Brian/K3KO
Frank Ayers wrote:
>
> The 1819 shows as having a life of 2500 hours and produces .34
> MSCP of light (candle power of some sort). The 1820 shows a life
> of 1000 hours but produces 1.6 MSCP so it's about 3 times brighter.
>
> There is also a 757 with a current of .08 and a light output
> of .62 MSCP but a rated life of 7500 hours. I might check that
> one out sometime. All cost about 80 cents each at Mouser.
>
> Frank
> W2FCA
>
> >--- Original Message ---
> >From: Bill Aycock <baycock@HIWAAY.NET>
> >To: "Tower Talk" <towertalk@contesting.com>
To: <towertalk@contesting.com>
> >Date: 5/1/01 8:56:58 PM
> >
>
> >I got lots of answers, fast, and I want to thank all who were
> so helpful.
> >The answers did have what I needed, but raised some other questions.-
> I
> >will try to answer.
> >1. the diagram for a HAM iv shows the number as 1819. Where
> did I get
> >'1820'? - My diagram simply says 'bulb', and the bulb and two
> fuses are
> >lumped in a replacement package. No ID there. I got the '1820'
> the
> >simplest way- off the burned-out bulb.
> >2. the (probably correct) type 1819 draws 0.04 Amp- the 1820
> draws 0.1 Amp.
> > I do not know the difference in Lumens. I wonder if that is
> why it burned
> >out?
> >3. there are several sources at a cost of $.55- RS has them
> listed for
> >$1.19- In other words, if RS does not have them locally, I guess
> I will pay
> >the shipping, which will be much more than the double price
> from RS.
> >
> >Much thanks to all
> >Bill-W4BSG
> >-
> >Bill Aycock --- Persimmon Hill
> > Woodville, Alabama, US 35776
> > (in the N.E. corner of the State)
> > W4BSG -- Grid EM64vr
> > baycock@HiWAAY.net
> > w4bsg@arrl.net
> >
> >List Sponsor: ChampionRadio.com - Trylon self-supporting towers,
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> >http://www.championradio.com
> >
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> >Submissions: towertalk@contesting.com
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> >Problems: owner-towertalk@contesting.com
> >
>
> List Sponsor: ChampionRadio.com - Trylon self-supporting towers,
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> http://www.championradio.com
>
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