Has anyone ever come up with a replacement for the Sperry (Beckman) SP-352 display tubes as used in e.g. the Heathkit GC-1005 digital clocks, among many others?
I found supposedly some here:
Has anyone ever bought anything from this supplier? Good or bad experience? They want quite a bit of info before they will send you a price quote and I'm reluctant to give out that much info without knowing anything about them.
Has anyone developed a suitable substitute using parts not
made of unobtanium? I got a quote from Beckman quite a while ago but they wanted me to buy mega quantities of them before they would tool up for a production run, and I only needed 3. It was going to cost several thousand dollars to get the 3 I needed! Now it looks like they are no longer going to produce them.