Please do post details of concerts, courses and other events into the Calendar
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Dear Rob,I sympathise with your problems, it is always very hard to seemingly make the right decision and have it shot down in flames by the PCC. I am afraid your local organ advisor will have little or no input into who looks after the instrument, they are only interested in replacements or alterations as those require a faculty.Makins have some really good engineers who understand Johannus inside out, after all it is the parent company of Makin.I know Johannus and Makin differ very much over regulation, Makins were regulated on site rank by rank but not Johannus. Apart from the voicing everything else is the same.Barrie
The Johannus 1105 is old Technology so its not easy to voice this organ.
Quote from: RobCharles1981 on January 14, 2011, 02:09:32 AMThe Johannus 1105 is old Technology so its not easy to voice this organ.Dear RobIs it digital? Is it early 1990s? If so there may be a small rectangular connector block, possibly 16 pin which might be brought out to the front of the instrument or may be buried in the back and this is the connector for a digital voicing box - and I have one.If you buy a service manual from WD Greenhill and send it to me I'll happily look it over and see what options the circuits might offer.Best wishesDavid P
Sounds like a complex job likely not worth doing. You might as well just get a new/nearly new toaster. Better still, have you considered a nice secondhand pipe organ? Beat the pants off the toaster for musicality and longevity. Toasters are a false economy in the vast majority of cases.
Dear RobI suspect that Roy at Ormatronix might have a greater in depth electronic knowledge but really one does not need to be too "precious" about electronic maintenance. Electronic organs can be considered generally in functional blocks of which amplifiers and speakers are independant of tone generation and if any disaster should happen to them, they are universally replaceable in a modular way.If voicing means changing resistors it means that the original instrument is likely to be analogue with tone forming circuits and one simply does not want to muck around with that. However, there may be variable resistors somewhere which can adjust the relative volumes of each stop and there may be associated tone controls. It's not rocket science.You're quite right to comment that a guarantee that ran out in 2002 is now worthless. Does the instrument have a MIDI output? This might be useful possibly for Hauptwerk extensions. If it does it suggests a digital basis of sound generation and this can need more specialised knowledge in some circumstances.Provided your instrument is producing sound, that signal can be taken off to other amplifiers or speakers and used in different ways till your heart's content and most probably by anyone with quite a basic knowledge. I know from past correspondence that you need external speakers rather than the inbuilt typical console speakers - that's not difficult and the speakers need not be expensive.Other than that, what specifically is the area of maintenance that's troubling you? If you'd like to sport the cost of the circuit diagram from http://www.wdgreenhill.com/manu/johannus.htmI can advise further. The 1105 is not listed - it will be a modified 1100 or something like a 1110 but either Johannus or Greenhill may be able to guide you on which is closest.Best wishesDavid P