Continuing the thread of older ATC equipment...
I know this has nothing to do with radar but anyway... are there any ATC units in the UK still using solid-state voice switching systems for their RT and phone lines ? I know several NATS and non-NATS units have installed the likes of Schmid and Frequentis VCCS to replace the traditional push button and PO style key and lamp units. Are any of these still out there ? I hope so. I've just bought an old key and lamp unit on ebay and it's a beautiful piece of equipment. Solidly built, simple design and tough, reliable switches that absolutely do the job. Typical British PO engineering and difficult to beat
By the way, Gordon Dennison. Please check your PMs. Thankyou.