Greetings,
As has been reported, vintage Ludwig Supraphonics have been known to have tension rod de-tuning issues. Mine is certainly one of them. After examining all of the lug lock and de-tuning prevention devices out there, I came up with my own, and I think it's the simplest and most affordable way of doing it. I'm almost wondering why no one came up with this before (or why it's not more widely known or practiced).
Standard tension rods on nearly every drum is 12/24" thread. The only exceptions are some vintage European drums, or any DW/PDP drum. Anyway, I thought, why not just get a regular hex nut to lock down the tension rod?
I ordered a bag of 12-24" threaded nuts and a bag of #12 washers from boltdepot.com for less than $10. Here is the process I followed:
1. Remove the tension rod from the lug
2. Place the tension rod through the hoop (but not into the threaded insert) and thread on the 12-24" nut and get it started. Then slide a washer on to the end of the tension rod, and then thread it into the insert like normal.
3. When the drum is tensioned to your liking, hold the tension rod firmly with a drum key (but don't turn it) and give the nut a quick tighten with pliers or an wrench.
I'm doing some recording this weekend, so we'll see how effective it is. I imagine this will work well, because they are now very snug. I'm not sure I even need the washer below the nut, but I thought it would help keep it in place and save any possible damage to the threaded insert. I thought about possibly getting "reversed" or "left handed" threaded nuts to really make them "locking", but I think these will work just fine. Nylon inserts "lock" nuts would have been too difficult to manage, and may wear out over time.
I just wanted to share this idea with everyone. I'll report back after a full weekend of hitting it!
V