over 2, 500 sams clubs are there in the usa.
how many sams clubs are there in the usa?
over 2, 500
Na
Na
whilst hand registering the organ is often carried out, this can only be used to facilitate small changes in the overall tonal colour, due to physical restrictions. i.e. the operator cannot operate more than one or two devices simultaneously, especially when using only one hand for registration, whilst playing keys with the other hand! this is where the true versatility of the sam comes into play. by applying a low voltage electric current (usually between 12 and 30 volts at up to 0.5 ampere) to one or the other of a sam's electromagnets (coils) the armature can be made to follow the same movement and thus operate its switching contact/s as if it had been actuated by a human operator. the advantage of electrical operation being that many sams can be electrically connected together and switched by the use of a single button (piston) depressed by the human player using only one finger. it can therefore be seen that operating many sams in simultaneous combination will have a far greater instantaneous effect on the sound of the organ (which is essential for tonal variety) than is achievable by the use of single sams. furthermore, combinations of registration changes can be stored in electronic or electromechanical memory which forms part of the organ's combination action, for instant recall at the touch of a button (piston) and translated into electrical impulses used to operate multiple sams.
stop action magnet