Yes; however, they are getting much harder to find on eBay. A set was just sold today.
https://www.ebay.com/itm/166561233092 and a couple sets back in November. There are posts on this circle on how to identify and perform modification as Brian did. See #4 and #9 of this thread:
https://www.audiocircle.com/index.php?topic=170897.msg1813464#msg1813464 Between my VR-60, RM-40, LRC, and 626's I have 23 panels in use and have a 30 year sparing plan. This requires a decent cache of spares. In my experience, the panels have proven to be exceptionally reliable. I have easily 23,000 hours of use and have had events that vaporized tweeters, blown amp fuses and yet have never had a single panel failure. If you ever actually have a defective panel, reach out and I'll get you sorted, that goes for Shaukat and Ken. Thanks again for going in with the group buy for the 6.5" Misco drivers. Also, if the cache gets large enough I will PM you before listing on AC.