Hammond l100 service manual pdf download

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It is backed by the short stiff spring to give it sufficient tension to hold the key down. When the next preset key is depressed, the cradle is forced down and outward, permitting the previously operated key to come up, but again locking the one last depressed.

If two preset keys are depressed at once, both will lock down. The cancel key with its long stiff spring is then used and forces the cradle down, causing all preset keys depressed to return to their normal position. As there is no locking spring on the cancel key, it will immediately return to its normal position.

If it is determined that a new return spring is necessary on either manual, remove the console top and music rack and take the bolts holding the manual assembly out from the bottom of the console. Raise the upper manual, or both manuals, as necessary, to gain access to the screws holding the left hand end block of the manual needing the replacement. After removal of the end block, the end of the cradle assembly, as well as the broken return spring and its bracket, will be visible.

Remove the bracket and broken spring and discard. Replace, using Part No. Install the new assembly so that the felt pad is above the preset cradle, and the flat spring is below the cradle, as shown in Figure Clamp it in the center of the range of adjustment provided by the slot. Check all preset keys for operation, and adjust the position of the new assembly in case any keys do not operate correctly.

The pedal switch shown in Figure 20 is similar in internal construction to the manuals except that only four busbars are included instead of nine Figure Each of the 25 pedals actuates a double set of contact springs, making eight contacts available for each note. Each note consists of a fundamental and a number of harmonics, no sub-harmonics being used.

The pedal contact springs are connected to terminals by resistance wires similar to those used in the manual assembly, and a cable connects these terminals to the proper terminals on the generator terminal strip. Four colored wires carry the pedal tones from the busbars to the pedal drawbars.

The wires are connected first to a resistor panel on the back of the manual assembly. A small choke coil and resistor mounted on the manual assembly are wired to the lower drawbar see Figure 22 and serve to filter out any higher harmonics or transients which might be present in the lower pedal frequencies.

Figure 23 is a wiring chart for the pedals,showing the frequency numbers appearing on each pedal contact. The pedal switch is equipped with busbar shifters similar to those on the manuals. The pedal busbar shifter is a Slotted stud on the near surface of the pedal switch, near the left end as you look in at the back. It should be adjusted as described under "Manual Busbar Shifters" on a previous page.

Pedal keys are set at the factory for average tension, but are adjustable to fit the requirements of the individual organist. Adjustment is accomplished by removal of the top cover at the back of the pedal keyboard and setting the tension as desired.

The vibrato effect is created by a periodic raising and lowering of pitch, and thus is fundamentally different from a tremolo, or loudness variation. The Hammond Organ vibrato equipment see simplified block diagram, Fig. It includes a phase shift network or electrical time delay line, composed of a number of low pass filter sections, and a capacity type pickup or scanner, which is motor driven so that it scans back and forth along the line.

Electrical waves fed into the line are shifted in phase by each line section the amount per section being proportional to frequency , so that at any tap on the line the phase is retarded relative to the previous tap. The scanning pick-up traveling along the line will thus encounter waves increasingly retarded in phase at each successive tap, and the signal it picks up will continuously change in phase.

The rate at which this phase shift occurs will depend on how many line sections are scanned each second. Since a cycle is equivalent to electrical degrees, a frequency shift of one cycle occurs for each electical degrees scanned per second. For example if the scanner passes over the line at such a rate that electrical degrees are scanned each second, there will be a frequency change of 10 cycles.

Since the pick-up sweeps from start to end of the line and then back, it increases the frequency by an equal percentage on its return trip, the average output frequency remaining equal to the input frequency.

The exact amount of frequency shift depends not only on the amount of phase shift in the line but also on the scanning rate. This rate, however, is constant because the scanner is driven by the synchronous running motor of the organ. The degree of vibrato or amount of frequency shift may be varied by a switch not shown in Fig. A vibrato chorus effect, similar to the effect of two or three slightly out-of-tune frequencies mixed together, is obtained when the vibrato output signal is mixed with a portion of signal without vibrato.

For vibrato chorus, part of the incoming signal appears across the vibrato line and the rest across a resistor in series with the line. As the vibrato effect is applied to the part of the signal appearing across the line, but not to the part appearing across the resistor, the combination produces a chorus effect. For normal vibrato, this resistor is short-circuited. Figure 27 shows the construction of the vibrato switch. The scanner Fig. It is a multi-pole variable condenser with 16 sets of stationary plates and a rotor whose plates mesh with the stationary ones.

In figure 28B two sets of plates have been removed to show the rotor. Signals coming from the line through the vibrato switch appear on the stationary plates and are picked up, one at a time, by the rotor. Connection to the rotor is made by carbon brushes as shown in Figure 28A. Two brushes touch the sides of the contact pin and a third presses on.

The complete schematic shows the vibrato circuit. The percussion tones are produced by borrowing the 2nd or 3rd harmonic signal from the corresponding drawbar of the upper manual "B " adjust key drawbar group , amplifying it, returning part of it to the same drawbar, and conducting the balance through push-pull control tubes, which when keyed cause the signal to fade away at a pre-determined rate. With percussion tablet "on" upper manual "B" adjust key and an upper manual playing key pressed, the 2nd or 3rd harmonic signal appearing on an upper manual busbar is conducted through "B" adjust key drawbar wire to input of percussion amplifier terminal H and amplified by T4 and V5.

Besides providing push-pull signal for the control tube V7, the percussion input transformer T5 has a third winding which feeds the signal back to the 2nd or 3rd harmonic drawbar through equivalent key circuit resistor R50 and terminal J. Thus the signal that was borrowed from the 2nd or 3rd harmonic drawbar for the percussion amplifier is replaced. When a key is depressed the signal first sounds loudly through the control tube, transformer T6, a high pass filter, and terminal D to the grid of V4.

Immediately condenser C31 in the control tube grid circuit begins to discharge, causing the signal to fade away. Pressing any upper manual key grounds terminal K through the tone generator filters. This virtually grounds the plate of Vb connected as a diode , stops conduction, and isolates cathode and control tube grid circuits. At the completion of this sequence, the percussion signal is blocked. The Percussion On-Off Tablet when turned "on" does five things to the signals of the upper manual "B" adjust key drawbars.

This wire which will be connected through generator filters to ground when any key is pressed is connected to terminal K. The 8th harmonic signal is not available on the upper manual as long as the percussion tablet is "on".

The Preset Percussion Switch is not part of the control tablet assembly or percussion on-off tablet, but functions as an interlock with them. It is located under the upper manual "B" adjust key.

This switch insures that the full upper manual signal is restored by shorting out series resistor R1 introduced by the percussion "on" tablet when any other upper manual preset or adjust key is pressed.

The Volume Tablet in "soft" position shunts resistor R46 across the percussion output transformer, reducing the percussion signal, and also shorts out upper manual matching transformer compensating resistor R1 thus restoring the upper manual signal strength to provide proper balance between the manuals. The Decay Tablet in "fast" position shunts resistor R57 across the slow decay resistor R58 reducing time for decay capacitor C31 to discharge and for V7 controls grids to reach cut-off.

The Harmonic Selector Tablet does three things to the signals of the upper manual "B" adjust key drawbar group:. The Percussion Cut-off Control , which is located on the pre-amplifier, should be readjusted as follows whenever control tube V7 is replaced: Set expression pedal wide open, both volume tablets "normal" percussion "on", percussion decay "fast", and harmonic selector in either position. Depress any key in upper half of upper manual and then adjust cut-off control exactly to the point where signal becomes inaudible.

Earphones can be added to the console for practice purposes so as not to distrub others. Earphones at best cannot replace the tonal quality achieved from the instruments' own speakers but do make the organ "more available". One method of attaching earphones is shown in the sketch below, using a reluctance type headset of good quality.

Lee Michaels - Side 1 of "Lee Michaels" album. It's a spinet so it doesn't have all the keys a console has. Some players prefer the As even to B3s because of the internal speakers.

The Type N has an impact energy of 2. Hammond Organ Size: Chord 5. From Venezuela. Beautiful original tone wheel organ Hammond L all in working order.

Changing The Percussion Keying Source. The L series has a completely different reverberation circuitry than the M the latter has what is refereed to as stereo reverberation. Not for organs with Start and Run switches. Stradivarius violins are plus years old and recognized as the best violins the world has ever known. These Models of The Hammond Organ contain the entire tone-producing mechanism, which is completely electrical in operation.

This is an original unrestored L, type L which refers to the cabinet finish. However, there was more to Hammond's range of products than just these two venerable instruments that included the A-, L-, M- and T-series to name just a few. US Seller. Hammond L That's the only used Hammond L tonewheel organ. The first Hammond B3 and C3 models were produced in and continued until a 20 year production cycle. He think's it may be an L, I couldn't find a model number.

See more ideas about hammond, hammond organ, the hammond. About Hammond Valve. Nikon Coolpix L, a semi-compact, digital camera.

In my book, anybody who records or gigs with a Hammond TG organ gets respect, regardless of model number. The difficult job of cutting chassis holes for the tubes and transformers is already done, one just needs to drill a few small holes for the potentiometers and jacks.

Removed from L organ. Shorten the decay time of the "fast decay" percussion mode so it sounds like the more famous Hammond models; Add a line-out so I can use a guitar amp and FX loop; Increase keyclick amount so it sounds like the more famous Hammond models; Misc.

A Vintage hammond organ is the best organ for gospel churches. Brand New. And of course the finest "WAY. A pitch bend effect can be created on the Hammond organ by turning the "Run" switch off and on again. Evolving from the company's acclaimed Sk range of keyboards, the Skx incorporates design recommendations from dedicated Hammond organists worldwide. Our company started out as a small manufacturer of plumbing and heating valves. Condition is "Used". Keyboards and Synths. Gentle Giant - Playing the Game.

From the introduction of harmonic percusion with the three series,all the consoles and the m's share the same chassis. The most common Hammond organs create sound using metal wheels and electricity. April 22, admin. I'm working on converting an old L organ amp into a guitar amp,and it seems like a no-brainer.

Addeddate UTC. Walking bass is the most common type of bass that you will hear in jazz and jazz blues on the organ. Metti in vendita i tuoi oggetti in modo facile e veloce e gestisci le inserzioni in corso. Not a copy, service manual for Wurlitzer Omni , , organ. One original Kawai MK MK20, WK and WK keyboard service manual is in fairly good condition for it's age other then the front cover page having a few marks.

Last Updated by Dean on Friday. Buy With Confidence! Hammond organ service manuals include schematic, circuit board layouts. Adjustments and parts list. This original vintage Hammond organ service manual is in good condition and only shows slight wear from normal use, the outside folder has small tear and stain.

J ust click on Buy it Now to purchase any item. E asy checkout. Use Paypal. S ave on shipping when you buy more than one item. U nparalleled Customer Service. It includes the large fold out overall circuit diagram as well!

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This Manual has one loose page. Minor marks from use. Large, complete, clear. Thanks for Looking. To see my other rare music related listings. Very g ood condition. Not a factory produced original, complete, clear, legible, high quality, over 75 pages. Please see the pictures for contents. Combined shipping for your multiple purchases. I've described and shown this item as best I can. Polite seller who values integrity and makes every There is minor marks from being used.

This is not the factory produced original but it is complete. Legible, high quality, clear. Each part has an identification pointing to it. Then there are 2 pages describing E, M Line voltage Load resistor settings Loudspeaker system and dividing network Maintenance. Contents: Schematic for Overall Circuit on large 11" X 17" fold out. Complete, legible, high quality, clear, not a factory produced original, minor marks from use. Thanks for Looking:. International shipping costs are higher- please inquire Wisconsin customers must pay applicable taxes We Are Morgan Music in Eau Claire.

WI Please check out our and be sure to add us to your! Visit our eBay store at http:stores. Any questIonS. Line boxes, scanners Amplifiers Manual hold down screws Generator covers Magnet locations on tone generators Manual Wiring Chart Percussion unit's parts diagram All the various models with labelled parts And more Parts List: 15 pages. Very well organized, with diagrams and descriptions. Drawbar, manuals, pedal, percussion, tone generator, starting motor, pilot light, vibrato, broken tabs, expression pedal, and more This service manual is a huge.

Extremely well organized, written and illustrated, in g ood condition: Minor marks from use in the shop. A ll pages are very clear. In excellent legible condition. It has three sections: A 58 page main section, a 15 page parts list, and pages 59 to 88 are 11" x 17" fold-outs.

This is not an original Hammond produced manual but it is of excellent quality. If you are a collector of original hammond manuals thi. Hammond H series complete, original service manual in fair condition B2. There iis some water damage to the first few pages and yellowing due to age. The manual is complete and ready to use.