Bush TR82C.

[Yorkie]

Corr....That's a posh one David, mine only had two transistors in it (now long gone)

Lawrence.

I've still got the 2 transistor injector that I made back in the mid 1950s, built into a Woolworth plastic icing syringe! There's a picture of it post No 8 at the the link below, including a scope trace which shows that it still functions as good as ever it did. When I wrote the above post about injector/tracers, I had a distinct feeling of deja vu, and if I'd taken the trouble to trawl through the archives I could have saved my breath as I'd said it all before, back in Nov 2011:

http://golbornevintageradio.co.uk/forum/...p?tid=1504&highlight=Signal+Tracer

Ho hum, another Yorkie 'intellectual interlude' AKA 'senior moment'.