Re: From 2014: Tektronix Announces Winner of Europe’s Oldest Working Oscilloscope Contest
That D suffix indicates Delay line, not Distributed amplifier. (So you could view the edge that triggered the sweep.) Tek's first distributed-amp scope was Type 517.toggle quoted messageShow quoted text
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Chuck Harris
Sent: Sunday, September 15, 2019 6:57 AM
Subject: Re: [TekScopes] From 2014: Tektronix Announces Winner of Europe’s Oldest Working Oscilloscope Contest
The 310 is close, but no cigar.
The 511 was the original Tek scope, the 511AD was a
later refined model, with a distributed vertical amplifier.
My working (?) 513D is probably older than Alan's 511AD.
I give it a ? because although I went over it completely
about 30 years ago, it has the selenium rectifiers, which
tend to turn into insulators.
According to Stan G's book:
511 last catalog 1952
511AD last catalog 1955
513 last catalog 1953
513D last catalog 1953
310 last catalog 1958
310A last catalod 1971
Dave Daniel wrote:
Hmmm.. I have (and had back in 2014) a working 310.