There was some info in the Jan 1981 QST and the 11th edition of Hints & Kinks that covered the 10-meter adaptation. I'm sending Max a copy separately.
Having said that, it appears that there were a number of "flavors" of L7 built. The one I ended up with already had the added input circuit capacitors installed in the above mod but the bandswitch was "U.S. limited"....I have absolutely no idea how you could install the two 68-pf SM caps yourself although I did correspond with a guy who said he'd done it....they have to go way down in the recesses of the box that holds the input coil circuitry. Then all I had to do was deal with the bandswitch issue which was an easy fix. Check the in the input loading coil/capacitor compartment accessed from the bottom of the linear. Count the number of capacitors in there; if they amount to the number shown on a schematic that includes 10m you're in like Flint; if not, get out your magnifying glass and LONG forceps and skinny soldering iron! Dino KL0S On 20Jan2010, at 8:09 AM, AirRadio wrote: > I have just got an L-7, the wavechange switch does go to 10m band but I am > not sure if it actually does 10m or not, is there an easy way to tell? I > think the 10m mod is the addition of two capacitors? > Also the case is damaged on the top which is irritating, any ideas on > refinishing, it looks like a plastic type finish which might be difficult. > Maybe someone has a spare top cover for sale ;-) > 73 Max
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