There are many folks here with much more knowledge than myself, but if your pedals are in place one of them may be stuck down and this could be found by playing each pedal one at a time. If however your pedals are not on the organ it could be one of the plungers is stuck down...jmho

Hi, Im new to posting here.? I have a 1964 A100 and the two drawbars for the pedals are continuously operating, e.g. generating a tone unless I push them all the way in (off).? Any hints on how to trouble shoot? I am guessing its a not uncommon problem.? Thanks.

Wondering if there's a future for an A-100 acquired from a thrift shop long ago.

I joined this group shortly after picking up this organ with the intention of getting this unit to playing condition, the original power board extracted while sitting at the shop. ?

Bought a power supply, NOS, from a member here who used to service Hammonds and purchased all remaining stock. ?Unfortunately, the PS was not a direct plug in replacement and I have not the time or ability to match the old connections to the PS and get the A-100 back in tone.

What would you do as a fitting future for an old A-100.

Fred?

I have an interesting story about the mighty Concorde. I purchased one a few years ago and I had to drive to South Australia? from Victoria to pick it up. When I got there the seller informed me that it wasn't playing properly. I nearly turned around and went home but as it wasn't very expensive and I had travelled all that way, I thought oh well, buy it and see what the problem is.

The journey home was about a 4 hour trip with the organ in the trailer. When I got home, unloaded the beast and switched it on, it worked perfectly!

That journey in the trailer shook the organ up enough to repair the circuit board edge connectors. It wasn't permanent though and for the time that I had it I had to attend to those boards many times.

A wonderful organ though and sensational sound when connected to a 710 Leslie.

Cheers

Allen


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Allen R Biggins BComm (Deakin), BSc (Deakin)

Yes, Chris! Due to the warped phenolic PCB's several, or even more, if not any, individual contacts get unreliable. Someone on YT pretends he has replaced the stock PCB's in a Concorde by designs of his own, dramatically reducing the PCB counts along with this. This might be possible for someone who is much, much more wiser and experienced than me. For me it is way out of reach.

Best regards!

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Before I retired, one of my regular calls was a chapel with a Monarch. The basic tone generator system is the same as the Concorde. Like many other Hammonds of that vintage most faults tend to be due to the edge connectors on the circuit boards.

Thanks, Gerhard, apparently you've nailed it!

The pictures of the interior somewhat remind me of what I've seen in a Concorde: Tons of individual PCB's that may have warped during the decades. No tonewheel at all. Hence, the German offering just might be of some interest for parting it out in favour of a DIY project. We'll see.

Best regards!

Thanks, Gerhard, apparently you've nailed it!

The pictures of the interior somewhat remind me of what I've seen in a Concorde: Tons of individual PCB's that may have warped during the decades. No tonewheel at all. Hence, the German offering just might be of some interest for parting it out in favour of a DIY project. We'll see.

Best regards!

Now the exact number of the Hammond.
It's the Hammond Monarch Model 16262 - 1976
Found in: The Blue Book of Hammond

Best regards,
Gerhard

Here you can find some more informations about the Monarch:


Best,
Gerhard

Hi,
title says it all. There's an organ for sale here in Germany that I've never seen before. It reminds me somewhat of a Grandee minus the AutoVari64 unit. Perhaps someone might know it better than me?



Best regards!

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For the H111-

Anything having to do with the special effects no longer works.

Everything else is in working order

For the 610 Leslie -?

It all works but the upper speaker rotation needs work (maybe the internal belt).

Norm E,

Just to let everyone know, one of our members picked up the Elegante and Leslie this past Sunday, so it is going to a good home!

And the beat goes on ...

Hello everyone,

I have a FREE 1989 Hammond Elegante (model 340107) with a Leslie 710 to give away.? Pedals and bench are included.??The Elegante has acquired a slight rubbing sound from its internal Rotasonic speaker, probably from the rotating speaker baffle, so the organ would need a little TLC and lubricant.? Or turn the Rotasonic off.? Everything else works perfectly.? I have 6 organs in my music room and need to clear out some space in which to record tuba, trombone, etc., so the Elegante and Leslie have to go.

I live in Wellston, Ohio (south central).? So, if you're close enough to make the trip to get it you can have a free organ!? Let me know soonest, please.? At the end of February if it is still here it goes to the dump.

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I have an A100 with bad notes and figured it time to change the wax capacitors on the generator, I would like for someone to
give me their nightmare experience on doing this and some good tips if you had good results.
Where is the best place to get some?? Which ones should I get?

Thanks,? ? J. MAC

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Forgive me if this opinion is a bit nasty: I will never waste my time again trying to use a 710 with a regular console. Run the other way!

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Well, perhaps he sort of knew what he was doing, but didn't want to go to the trouble of sourcing the correct kit. It can be made to work, but echo switching is a bit problematic. You can't leave the console load resistor (R1 32 ohm) in place. It's much too low an impedance for the organ pre-amp to drive. On the other hand with just removing the resistor will cause the Leslie to hum when you switch to main. A resistance of a few hundred ohms may work, low enough to ground out hum pick up in the cable, not so low as to reduce the pre-amp output. You also have to think of a way of switching both the G-G lines to the PR-40 off and on together.

So, it looks like the guy that installed the kit (before I purchased this whole setup) didn't know what he was doing.
Kinda figures when he left the Leslie's cable connection inside the B-3!

On 1/2/2022 3:08 AM, Chris Clifton wrote:

That kit is intended for use with a spinet organ with a built in amplifier and speaker. Not ideal for connecting to a console with G-G output from the pre-amp, there never was an official passive kit for connecting a 9-pin Leslie to a console.

Did a little more digging around the Fish Organ list, this kit uses the connector box with the number you gave in your original post.

On 01/01/2022 23:18, Bob Pasky wrote:

Hi Chris,

Thanks, but the circuit is not even close. What I've got is a totally passive circuit.

I see your point about shorting the "unused" speaker, but that's not how mine works. My MEE switch
only has three wires going to it. The "center" wire connects to Main, both or Echo, depending on the
switch position.

The thing is, this used to work. But the guy that installed the kit just put the box inside the organ case,
next to the preamp. In order to connect the Leslie, you had to leave the back of the organ off. That
looked strange, so I extended wires from the box to the pedal case and put the 9-pin connector
where it's supposed to go. In doing so, I might have messed something up in the kit's wiring and
haven't found the schematic for it. This is as close as I got to the right circuit. At least, the MEE and
Tremelo switches match what I have.


-- Bob

On 1/1/2022 10:36 AM, Chris Clifton wrote:

I'm guessing that it will be similar to this one, . All the kits I've looked at for connecting 9-pin Leslies to console Hammonds seem to use the same basic circuit.

When the MEE switch is set to echo, the brown and orange wires are connected together. This effectively puts a short circuit across the input terminals of the PR-40, muting it. The two 820 ohm resistors, R2 & R3 isolate the G-G terminals of the organ from the short circuit. When thinking of MEE switching on console type organs, I find it helpful to think in terms of the switch muting the unwanted speaker, rather than enabling the wanted speaker.

To use a two channel Leslie with a single channel organ, you will need a crossover between the organ and the Leslie. These crossovers are usually built into a short piece of tube with a 9-pin plug on one end, and a 9-pin socket on the other. The crossover ensures that bass notes always go to the stationary channel of the Leslie and sound through the 15" speaker, only mid to high frequencies go to the rotary channel as the speakers of this channel can't handle low frequencies.

On 01/01/2022 14:49, Bob Pasky wrote:

Does anyone have schematics for this Leslie Connector: 113910 ?
It's for adapting a B-3 to a Leslie 710.
I've looked in the usual places, but haven't found this particular model.

Barring that, can anyone tell me how the signal to the PR-40 should be terminated
when the MEE switch is set to Echo? (The PR-40 is Main, the 710 is Echo). It appears
that the Main signal just floats and I'm reading something like 5v to Gnd. It makes an
awful "sproing" noise from the PR-40 when it's switched from Main/Ensemble to Echo.
That can't be good for the PR-40 amp.

Thanks,
-- Bob

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