Ooops! Wrong again!The W66 is passive so its input and output impedance is the same (200 Ohms)
Ooops! Wrong again!The W66 is passive so its input and output impedance is the same (200 Ohms)
Well it does not have to be precisely 20 Ohms, just the lower the better.how I can achieve 20 ohms and 200 ohms without transformers
Yes, and i NEVER knew that!your EQs are 86a, which are inductor based. Mine are 86, they are RC
Back then Eckmiller also supplied transformers (CT10/11) in case they were not used together, to present a required impedance. But I have never seen one, sadly; using them strapped together was always very convenient, and cost-saving solution I guess.[...TS10] So I bought on unit of each because I knew even then that they were built to be used only in conjunction with one another. They as well are completely passive but since they do only cut, they do not require a 34 dB boost. So I racked them and fed them into a Maihak W66. The resonances were so clearly audible, I did not even have to make any measurements. I was so disapointed and sold them emidiately.
Amazing! Please tell me you also saved documentation of the console (...and intend to scan it someday)? It is very rare to see such a console not cut up to pieces and sold for modules, and it would be even more rare to see original docs (console wiring diagrams, test reports etc.). In any case, very admirable to save the console and keep it in use!Gosh, am I lucky to have stumbled onto this thread! Great infos (thank you thomasdf!) and @ Rock: What a wonderful leaflet!!!
When I started work at NDR in Hamburg there was still one small studio equiped with Siemens V72, TAB V76, Maihak W87 and Eckmiller EQs. When it went out of comission I was lucky enough to be able to buy the console and it´s serving me to this very day - longer than it has served German Radio by now and without one day of failiure.
(I could not blame you if you accused me for boasting, so: Sorry in advance!)
Yes I didPlease tell me you also saved documentation of the console
Why not? But it is many big sheets of paper because they painted a new block diagramm with each modification ... in ink ... by hand. Ooo, all the work they put into it! So of course I wouldn´t want to spoil their legacy and continued to record every alteration I made.(...and intend to scan it someday)?
Aaah! I didn´t know that eighther! I always wondered how there could only be a TS10 in the side rack to an old console of "Deutsche Phonogramm" that a friend of mine owns, without the adjacent HS10 - well, that explains it, thanky you!Back then Eckmiller also supplied transformers (CT10/11) in case they were not used together, to present a required impedance.
That is absolutely amazing! I would gladly help with scanning that if you can't or don't have time to do so (I have a small scanner but can stitch the images in Photoshop together, no problem with that). Or I can clean and stitch the scanned images, whatever suits you (PM me). I can also understand you won't want to bother with that at this time, it is some work, but please don't throw it away... This is a treasure trove of information esp. on gainstaging and impedances, years of manufacture etc.Yes I did
And luckily so, because at the NDR the thing had been changed so many times and I would have been at a loss to know left from right.
Why not? But it is many big sheets of paper because they painted a new block diagramm with each modification ... in ink ... by hand. Ooo, all the work they put into it! So of course I wouldn´t want to spoil their legacy and continued to record every alteration I made. [...]
Malotki V71/V71a are very rare, and information on them is also pretty rare as well esp. information on different revisions (V71 w/ 19/34dB Switch, V71 w/out Switch, V71s, V71u)...Aaah! I didn´t know that eighther! I always wondered how there could only be a TS10 in the side rack to an old console of "Deutsche Phonogramm" that a friend of mine owns, without the adjacent HS10 - well, that explains it, thanky you!
That console - by the way - does contain the V72´s little brother: the V71.
Siemens Sitral V272 would be a good match, and still affordable?[...] I need a 34dB makeup amp after them (or before, from what I read it can bring a nice color). The thing is they are passive, balanced and need to be fed and drive symetrical signals. I am wondering what path I could follow.
Back then it was designed to be used with a V72 but that's out of my budget and I would like the amp to fit in a 1U rack unit.
I have 2520 makeup boards that would need both an input and output transformer
I thought of giving the Neve BA283 a try, too.[...]
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