Well, restocking will be out of the question, because SLI lamps ceased production before I was bornHmm, the Lampco web site isn't displaying the stock level at all right now, but it was claiming six earlier on! In a panic, I ordered two this evening and swallowed the postage cost, even if I'm working just down the road from them next week and intend to collect in person! The first bulb is for a future conversion, if practical, of the GEC Z9517. The second one will be a spare lamp or, given the remotest chance, used to convert a surviving Alpha Six back to its former glory.
I guess I'll find out in the morning if the order was successful!
The USAF and possibly the RAF used them in runway lighting until recent times, and must have held large stocks of these lamps. You never know, ...locked away in some aircraft hanger at Mildenhall Airbase?Wow, I never knew that. My brother's in the RAF and I do get to see his base from time to time. The new LED lanterns at his RAF base recently came up in
The most energy efficient way of lighting a street topic. In future visits I'll try and look down as well as up!