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As i mentioned in the video, this organ hadnt been oiled in numerous years, so i put in extra. If oiled annually , one eyedropper in the run motor cup and two eyedroppers in the funnels is appropriate.

Sure. The motor actually has two parts, which can be thought of as if there were actually two separate motors. One is a synchronous motor which is designed for very accurate speed, but has very little torque (rotational power). The other is an induction motor, which has more torque, but cannot be relied upon to run at exactly the right speed. If the speed varies, then the notes will "warble" and be off key. The start switch, the spring loaded one that you push first, energizes the induction motor to get everything up to the approximate speed. Once it has reached full speed, you switch on the other switch which supplies power to the synchronous motor. You then let go of the start switch, as the induction motor is no longer needed and will only serve to interfere with the accurate speed of the synchronous motor. In clocks, there is so little work for the motor to do (turn the hands on the clock face) that a separate induction "start" motor would be overkill. In the Hammond clocks, there is small shaft that protrudes from the back of the case which you twist to get the synchronous motor going right after you plug it in. In Telechron® Clocks (later bought out by General Electric), a special circuit within the motor gets it going without human intervention. If you have a power failure, the Hammond clock will not self start, so the time it shows is the exact time the power failure occurred. In the Telechron Clocks, they will start up again when the power is restored, so you know how long the power failure lasted (how "behind" it is from true time), but you don't know when the failure occurred. If you have one of each in the house, then you know both things. To answer the rest of your question, no the valves (tubes) do not work as a memory; they only work as amplifiers of the signals generated by the tone wheels, much the same way a guitar amplifier takes the very weak signal from the coils in the guitar pickup and amplifies it to produce an audible sound from the loud speakers.

Principal and Flute type is easier, than lingual stops.

I would ask this question of Tyler of Boss Organ. His web site is www.bossorgan.com/ and there is a "Contact Us" page on that site with his e-mail address and phone number. I don't know enough about the mechanical construction of the keyboard to answer you.

Yes! A friend of mine once called me to say that someone had delivered a Hammond Organ to the local dump. Fortunately, he caught them while it was still intact. I called Tyler at Boss Organ right away. He returned my call and exclaimed Holy (something you can't say on television)! He put me in touch with someone he knew that lived in the same town as that dump who promptly showed up and rescued it.

Yes! My friend Colin Bradley saved that A100, it now has a bunch of Boss Organ mods (booty bass and Lunchbox) and you can see/hear him play it with his MA based band “Sundog Organ Trio”

I think so. Many rock songs had an organ player using a Hammond; it was very popular, before synthesizers came into common use. When the Doors did "Hello I Love You," there's a break where only one sound is heard, a glissando that descends, then ascends again. I don't know for sure but there are some theories that they achieved this by rewiring the basic power circuit in the organ to allow the motors to be shut off but keep the amplifiers on. That way the tone wheels slow down (descending notes) and resume speed when the motors are started up (in the correct sequence) again.

On a M103 ,Matt Fisher did it !

Maybe this organ wasn't equipped with Leslie. Leslie was optional from another company. Possibly the organ was used as pipe organ replacement, so no need for Leslie.

@@verkehrsteilnehmer-berlin - This organ has a Leslie switch, but we did not cover that in this video, as a Leslie is optional with the A-100, unlike the B3 and C3 which do not have a built in power amplifier and speakers. The switch is often mounted at the front edge of the keyboard area, at the left. The Leslie speaker that this owner has only has one speed (fast), so the switch has 3 positions, internal speakers, Leslie Speaker, or both.

Glad my explanations here were helpful to you!

I am the technician doing the explanations in the video. Your assessment i false, i happily answered all the clients questions and even agreed to do that explanation TWICE so that Glenn could video it 2nd time.

www.bossorgan.com/ This is the web page for Tyler, owner of Boss Organ, and the person who showed us how to add oil and operate the controls of the organ.

Thanks!

They have numbers only. Order is 16', 5 ⅓, 8', 4', 2 ⅔', 2', 1 ⅗', 1 ⅓' and 1'. The reason is, 8' is the fundamental and 16 and 5 ⅓ are sub registers.

Agreed! I bought my B3 and 122 from him about 10 years ago. I went to his shop - wow! A Hammond playground, not to mention Fender Rhodes and Marshall amps jammed in there.

Thanks!

Glad my explanations here were useful!

9:36 Similarly, that note is not the E which is 2 ** (2 + 1 ÷ 3) ≅ 5.0397 times the frequency of middle C, but a note which is exactly 5 times the frequency of middle C.

I must say it is a pleasure to run into someone that understands not only the Hammond but harmonic progression. Wonder if you are old enough to have read Hemholtz, "On the Sensation of Tone?" Also I would like to point out that the Hammond organ may be considered the first Additive Synthesis synthesizer.

Pipe organs never had spinning speakers, though.

It's correct that pipe organs never had moving baffles (or speakers lol). However, I believe the Gulbranson church organ actually had speakers mounted in a round piece of wood and spun around on a circle for the "celeste" sound. It was really something to hear because of the massive amount of air being moved about.

@@lawrencedoliveiro9104 In a pipe organ, each pipe can be thought of as an individual speaker being driven by its own free running tone generator and amplifier.

Oh my ... you even have the clock. Wow!

I just realized why they didn’t provide a 7th-harmonic drawbar -- is it because none of the non-octave harmonics are true harmonics? That is, exact ratios to the base frequency? They are all simply using the same set of tonewheels offset by some integral number of semitones? This is probably close enough for the 3rd, 5th and 6th harmonics, but would be too far out for the 7th.

@@lawrencedoliveiro9104 If there were a 7th harmonic drawbar, there would be less than 2 cents error in frequency due to the tone wheel generator. In the real world, the equal temperament seventh harmonic is about 31 cents sharp from the theoretical seventh harmonic! The tonewheel generator was perfectly capable of generating quite accurate equal temperament tones. I believe the absence of the 7th harmonic drawbar was due to an intelligent choice by Laurens Hammond and John Hanert to balance features, performance, manufacturing and end-product cost.

@@billtanguay8905 That’s about a third of a semitone, which is noticeably off. That’s my point. And of course it gets worse from there.

Look at a modern softsynth

like ZynAdd

the ones that are free, are not tone wheel organs

I do not believe the bottom of the A-100 van be separated.

No I bet there are none similar. Only a few hammonds are desirable, the rest no one wants. any free or cheap are not A100, B3, C3 everyone knows those sell several thousand, any others free or cheap will be the oddball models or electronic ones that sound nothing like these.

Grab the best one you see ! A fantastic old musical technology . Do some research on the foam pad sitting on top of the TWG if I am not mistaken . If it is foam it may have disintegrated and caused mayhem in the moving parts of the generator . I think that the foam was discontinued after a CERTAIN DATE SO IT WOULD BE GOOD TO BUY one of the later A-100's .

Glad my explanations here were useful for you!

Why do you think some people never do an oil change on their car ?

@@lauralhardy5450 Ha,ha - yes, you’re right - I always used too, every 6,000 miles on the older cars. Only habit keeps me checking the dipstick when there’s really no need on modern vehicles- warning lights for everything. Best wishes