On my IC-28H there are green boots over clear lamps. Just take the boot
off the old lamps and put them on the new ones.

Ron - K0QVF

Dick wrote:
On Fri, 01 Apr 2005 00:57:17 -0000, (Dave Platt)
wrote:


In article ,
Dick LeadWinger wrote:


Thanks. I had found that lamp in the Mouser catalog. However, the
last time I applied power to the IC-28H, one of the lamps came back to
life. When I observe it from the backside of the circuit board, the
lamp has a definite green glow. I assume this is what gives the green
look to the display. I read a message from one person who used amber
LED's to give it an amber display. This leads me to conclude that the
color of the lamp light is what determines the color of the display.
I have not seen any 7219 lamps on the Internet that are green. Still
looking.

How about using a standard bulb (as in the Mouser catalog) and giving
it a light coat of green nail polish? A light-green LED with series
dropping resistor might also give you the desired hue.


I have been thinking about trying the amber LED's. I also sent an
e-mail to Icom to see what they can tell me.

Dick

On Thu, 31 Mar 2005 20:52:54 -0600, Ron wrote:

On my IC-28H there are green boots over clear lamps. Just take the boot
off the old lamps and put them on the new ones.

Ron - K0QVF

A follow-up to my original post. I purchased the lamps from Mouser as
was suggested earlier. I bought 10 because I couldn't see paying
postage on $.58 worth of lamps. Now I have some spares.

As Ron said, the green comes from little, vinyl boots that the lamps
fit into. Once you get the old lamps out, you just carefully peel the
boots off. Replacing the lamps is easy as the pads are large and easy
to solder to. The hard part is in taking the head off the radio.
There are numerous plugs that have to come out so you can get access
to the backside of the display PCB. Be careful when you unplug them
as there are two sockets for several of them. You want to get the
plugs back into the correct sockets. I'm back in business with full
display lighting. Thanks everyone for the suggestions.

73, Dick - W6CCD