Just a heads up. As of today 28Mar12, Tubemonger has a few GEC CV4086 tubes in stock which will fit into the Eros. This was originally a flying lead tube of which they attached a base. This batch has a narrower base so that it will fit into the sockets with shields. This is said to be one of the best EF86 type tubes available.
Of note, I have no affiliation with Tubemonger, just a happy customer
