accuracy of HM-2140 watt meter

[Charles W. Morehouse]

Folks,
It is easy to add a lamp or even two to those meters as long as the
meter case is clear. I use #330 14 volt aircraft bulbs for their very
long life. Don't use Radio Shack China bulbs as they will last only a
few days. Good high intensity LED's are even better.  Solder some leads
to the bulbs and mount them with a dab of silicon rubber  I put a 10 ohm
1/2 w resistor in series with each bulb to prolong life. Wire the bulbs
to a standard DC connector with a bypass cap. Be sure to twist the leads
where RF is present.  Hook up to your 12 volt supply or a wall
transformer.  Have installed bulbs in my SA-2060A tuner and  Yaesu
YS-500 power meter, also others.  Looks factory made and sure helps in
the dark. 73.
Wayne;
W4GBW

Floyd Sense wrote:

>Yep - would be nice to have lights in the meters.  I was thinking about using a high intensity white LED in each one, but haven't looked into that yet and don't know if there's a reasonable way to do it.
>
>K8AC
>
>----- Original Message -----
>  From: Bob Peters
>  To: Floyd Sense ; HEATH at LISTSERV.TEMPE.GOV
>  Sent: Sunday, September 21, 2003 9:36 PM
>  Subject: Re: accuracy of HM-2140 watt meter
>
>
>  I just purchased one of these on Saturday at the Denton Texas Hamfest...$30.00
>  checked the tracking with  a Bird 43 and was very surprised as to how accurate it
>  is compared to my Vecronics SWR meter...So far very pleased ..Only  wish  that the meters
>  and lamps  in them...Best 73's   Bob W1PE
>
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