****PHASE LINEAR 5000 problem solved Fellas...My 14 new "cool blue" LED replacement lamps arrived today. about 3/8" inch shorter than the OEM.
I just looked down and the answer was right in front of me. I dismantled 13 "Wire Nuts" and used the conical spring on one end of the new Blue LED lamps to make up the length difference. unbelieveable fit and secure. the conical spring keeps tension on the lamp and also keeps it centered at the same time..all for the cost of 13 wire nuts..lol..lol..Piece of cake. Now have bad ass overhauled 400 with bad ass 5000 tuner and bad ass BOSE 901 Series VI and finally, Bad ass brand new BOSE 301 series 5 in my workshop. Ted Nugent never sounded so good. I hope this "patented" fix helps someone else too. Russ Krul, Mt. Juliet, Tenn.