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Drake 7-Line Solid-State Blue LED Illumination Kit NEW!
This add is for (1) Drake 7-Line Solid-State Blue LED Illumination Kit you will need to add to your 7-Line gear including the TR-7, TR-7A and R-7, R-7A.
Note: I also have the single PTO LED kit for the RV-7 Please see my other listings.
The kit includes:
One Meter Blue LED Lamp Assembly
One PTO Blue LED Lamp Assembly
Four (4) Heat Shrink Tubing Sleves (If Needed)
Full Installation Instruction Sheet
Simple to Install
Installation is straight forward and every attempt was made for ease of installation. Since internal wiring is performed this kit does require that the installer must be capable of basic soldering skills. If you've never soldered before, please find someone who has experience to assist you.
Frequently Asked Questions:
Is there any difference with installation into the R7 receiver?
Only a small change in the procedure from that used in the TR7 installation. "The R7 differs from the TR7 in the PTO area in that the R7 has an antenna selector switch to the right of the PTO and it has a metal box shield around it. While you can remove the old pilot lamp assembly with this shield still installed, it's impossible to get the LED assembly in place without removing the shield.
The shield is held in place by two nuts on the rear, a ground lug screw on the front panel, and another screw on the right side panel. Removing these lets you slide the shield off and then there's enough room to insert the LED assembly (but barely enough). Other than that, the R7 installation is identical to the TR7. "
What lamp do I use in the L7 Amplifier? The L7 amplifier uses four (4) older style T3-1/4 lamps running off the power tubes 5VAC filament transformer. You can use the MOD-4LINEMTR lamp that was designed for the Drake 4-Line series equipment. This lamp is a direct plug-in for the original L7 light bulbs. I also have thesae Lamps available in my other listings and on my web site. You can find the link to my web site on my "ME" Page.
Drake has used blue filters since the days of the 4-Line equipment. This continued into the later 7-Line equipment including the TR7(A) transceiver and R7(A) receiver. The problem occurs in later years when the blue filters begin to change and the displays end up looking green. Since the meter and frequency displays are illuminated by incandescent lamps they emit a glow that leans toward the red end of the emission spectrum. Thus a blue filter being back lit by a yellow/red glowing filament will naturally result in a greenish illumination. In the past people would replace the blue filters with newer and perhaps darker blue filters. This was a step in the right direction, but you are still stuck with a light bulb that will eventually burn out and require replacement. In the TR7 transceiver the bulb that illuminates the analog frequency display requires the removal of the DR-7 digital readout board to access the bulb. This is not an enjoyable job and has the potential of damaging the DR-7 or other parts in the radio if the deinstall and install procedures are not followed closely. You will often see the analog display dark as the user never bothered to change a burnt out bulb.
Another problem area with the 7-Line equipment illumination is that Drake used small round glass #53 bayonet bulbs. Due to their small size they can not illuminate the total coverage area of the meter or analog display evenly. You will have light and dark areas.
To solve both the aforementioned shortcomings we have developed a Blue illumination kit to replace the existing incandescent bulbs provided with the 7-Line equipment. The kit consists of two custom manufactured LED lamps. Each lamp utalizes the latest in Surface Mount Technology (SMT) assembled on Flex PC Board. The internal lamp LED spacing was designed to provide a wide angle of light dispersion providing a very even illumination distribution across the meter or analog frequency display area. Each lamp assembly has a solid plastic diffusion lens attached to further distribute the light evenly. Since the LED's emit a true blue spectrum there is no green affect encountered with the incandescent bulbs. There is no need to replace or add additional gel filters.
Lamp assemblies install easily using integrated non-conductive slide-on clips. Thus no destructive changes are made to your equipment. This kit is fully reversible!
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