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Chris55000 · 9th Oct 2021, 4:58 pm

Hi!

Having had a read of the TF2201 books it's only an inch or two wider and higher than a Cossor CDU110 but quite a bit longer front to back, with one valve in the mainframe, two in the Vertical plugins and two in the Timebase plugin – the rest is all transistors !

Bandwidth 30 Mc/s, T.B. speed to 50 ns/cm, 11.5 kV p.d.a. CRT.

I'm a bit puzzled why Marconi went over to the peculiar "Wireless World" style junction transistor symbol in their TF2203 book tho' – it a French style symbol and not been used before or since – Did M.I. have a French Drawing Office chap do that manual?

(Still has the "Wireless World" drawing lettering tho'!)

Chris Williams

9th Oct 2021, 4:58 pm	#4
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,873	Re: Update on my Oscilloscopes Review! Hi! Having had a read of the TF2201 books it's only an inch or two wider and higher than a Cossor CDU110 but quite a bit longer front to back, with one valve in the mainframe, two in the Vertical plugins and two in the Timebase plugin – the rest is all transistors ! Bandwidth 30 Mc/s, T.B. speed to 50 ns/cm, 11.5 kV p.d.a. CRT. I'm a bit puzzled why Marconi went over to the peculiar "Wireless World" style junction transistor symbol in their TF2203 book tho' – it a French style symbol and not been used before or since – Did M.I. have a French Drawing Office chap do that manual? (Still has the "Wireless World" drawing lettering tho'!) Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed! Last edited by Chris55000; 9th Oct 2021 at 5:04 pm.