[R-390] R-390 Green Gear

Barry n4buq at knology.net
Mon Aug 26 11:20:01 EDT 2024


I've restarted working on the R-390.  Hopefully I'll have the knobs repainted successfully soon but, in the meantime, I'm going back to the rest of the radio.

When I started the front panel restoration project, in anticipation of removing the RF deck for cleaning, I installed the Green Gear in the position where it engages the gears (as opposed to where it's normally held for safe-keeping).  In the interim, I'd forgotten I had moved it and have rotated both the KC and MC shafts.  Now I'm not sure what that might have done to the gear/cam alignments.  I thought that with the gear installed that way, it would lock any movement on those shafts but apparently that's not true.

If I remove that gear now without placing the KC and MC gearing back to the positions where they were when I installed the Green Gear, does that leave the cams improperly aligned?  If not, I can realign them but was hoping to avoid that if it isn't necessary.

Thanks,
Barry - N4BUQ


More information about the R-390 mailing list