11 Apr
2022
11 Apr
'22
3:23 p.m.
the Hammond organ with the Leslie speaker is amazing! But i know the speaker
paper is chewed up and decayed to hell and needs a recone.
Here's a video of Marc playing it:
https://www.instagram.com/tv/CcCaiMRDEKU/
Where can we find parts for a recone kit? I volunteer Arlo to do the reconing,
he did a great job with a giant subwoofer recently.
What model speaker is it? Or do we just have to find a reconing company that
can send us a custom cone and surround according to measurements we make?
maybe Tuesday night we can take measurements, and try to figure out the model
number of the speaker.
I wouldn't be surprised if we have to re-use the voice coil that's in there now
- who knows what weird impedance it is (this is an electromagnetic-stator
speaker powered by a tube amp!) and it's probably made with whale-bone PCB
lacquer that will outlast anything we can buy, plus there's nothing wrong with
it.
Thanks to Kent for rebuilding the amplifier
the organ is mentioned a couple of times in this Meeting from 2015:
https://sudoroom.org/wiki/Meeting_Notes_2015-09-02
I created a wiki page for it, please edit and contribute:
https://sudoroom.org/wiki/Hammond_Organ
-jake
11 Apr
11 Apr
4:58 p.m.
The mice had a field day with the surround! They started with the
electromagnet field coil but thankfully stopped. It¹s fine after a repair.
It gets a little warm which is normal as it also functions as a choke for
the tube amp power supply.
The Speaker Exchange has a selection of kits for Jensen 15² drivers, voice
coils and spiders included. I¹ll get the model speaker when I¹m in
tomorrow evening and order the kit.
-Kent
-----
Kent Leech Illustration
https://dribbble.com/tech_illo
http://www.kentleech.com
kent(a)kentleech.com
+1 (510) 504-0634
--
-----Original Message-----
From: Jake via sudo-discuss <sudo-discuss(a)sudoroom.org>
Reply-To: Jake <jake(a)spaz.org>
Date: Monday, April 11, 2022 at 3:23 PM
To: <sudo-discuss(a)sudoroom.org>
Cc: <benjifriedman(a)gmail.com>om>, <arlo23(a)gmail.com>
Subject: [sudo-discuss] hammond organ speaker
the Hammond organ with the Leslie speaker is amazing!
But i know the
speaker
paper is chewed up and decayed to hell and needs a recone.
Here's a video of Marc playing it:
https://www.instagram.com/tv/CcCaiMRDEKU/
Where can we find parts for a recone kit? I volunteer Arlo to do the
reconing,
he did a great job with a giant subwoofer recently.
What model speaker is it? Or do we just have to find a reconing company
that
can send us a custom cone and surround according to measurements we make?
maybe Tuesday night we can take measurements, and try to figure out the
model
number of the speaker.
I wouldn't be surprised if we have to re-use the voice coil that's in
there now
- who knows what weird impedance it is (this is an electromagnetic-stator
speaker powered by a tube amp!) and it's probably made with whale-bone PCB
lacquer that will outlast anything we can buy, plus there's nothing wrong
with
it.
Thanks to Kent for rebuilding the amplifier
the organ is mentioned a couple of times in this Meeting from 2015:
https://sudoroom.org/wiki/Meeting_Notes_2015-09-02
I created a wiki page for it, please edit and contribute:
https://sudoroom.org/wiki/Hammond_Organ
-jake
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To unsubscribe send an email to sudo-discuss-leave(a)sudoroom.org
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12 Apr
12 Apr
2:12 a.m.
Kent that's awesome! we are so lucky you're here to fix this, there's
probably
no one else left who knows how such a weird speaker/amplifier works. Was it
common to use the speaker as part of the amplifier power supply circuit? I've
never seen anything like this before.
I'm adding Peter to this email chain since he's not in the discuss list but
Peter loves fixing things (so i've heard)
and another link to the wiki page:
https://sudoroom.org/wiki/Hammond_Organ
that's exciting about the speaker, lets get this whole machine tuned up where
it can be played by anyone anytime (without too much training or fire risk) and
then maybe people will show up just to play it!
-jake
On Mon, 11 Apr 2022, Kent Leech wrote:
The mice had a field day with the surround! They
started with the
electromagnet field coil but thankfully stopped. It¹s fine after a repair.
It gets a little warm which is normal as it also functions as a choke for the
tube amp power supply.
The Speaker Exchange has a selection of kits for Jensen 15² drivers, voice
coils and spiders included. I¹ll get the model speaker when I¹m in tomorrow
evening and order the kit.
-Kent
-----
Kent Leech Illustration
https://dribbble.com/tech_illo
http://www.kentleech.com
kent(a)kentleech.com
+1 (510) 504-0634
--
-----Original Message-----
From: Jake via sudo-discuss <sudo-discuss(a)sudoroom.org>
Reply-To: Jake <jake(a)spaz.org>
Date: Monday, April 11, 2022 at 3:23 PM
To: <sudo-discuss(a)sudoroom.org>
Cc: <benjifriedman(a)gmail.com>om>, <arlo23(a)gmail.com>
Subject: [sudo-discuss] hammond organ speaker
the Hammond organ with the Leslie speaker is
amazing! But i know the
speaker paper is chewed up and decayed to hell and needs a recone.
Here's a video of Marc playing it: https://www.instagram.com/tv/CcCaiMRDEKU/
Where can we find parts for a recone kit? I volunteer Arlo to do the
reconing, he did a great job with a giant subwoofer recently.
What model speaker is it? Or do we just have to find a reconing company
that can send us a custom cone and surround according to measurements we
make?
maybe Tuesday night we can take measurements, and try to figure out the
model number of the speaker.
I wouldn't be surprised if we have to re-use the voice coil that's in there
now - who knows what weird impedance it is (this is an
electromagnetic-stator speaker powered by a tube amp!) and it's probably
made with whale-bone PCB lacquer that will outlast anything we can buy, plus
there's nothing wrong with it.
Thanks to Kent for rebuilding the amplifier
the organ is mentioned a couple of times in this Meeting from 2015:
https://sudoroom.org/wiki/Meeting_Notes_2015-09-02
I created a wiki page for it, please edit and contribute:
https://sudoroom.org/wiki/Hammond_Organ
-jake
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To unsubscribe send an email to sudo-discuss-leave(a)sudoroom.org
More options at
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15 Apr
15 Apr
12:27 p.m.
i need the size of the driver (15"? 12"?) and the type of edge. a pic
of the edge would be good. and if there are any numbers or anything
printed on the cone anywhere...
On 2022-04-11 17:23, Jake wrote:
the Hammond organ with the Leslie speaker is amazing!
But i know the
speaker
paper is chewed up and decayed to hell and needs a recone.
Here's a video of Marc playing it:
https://www.instagram.com/tv/CcCaiMRDEKU/
Where can we find parts for a recone kit? I volunteer Arlo to do the
reconing,
he did a great job with a giant subwoofer recently.
What model speaker is it? Or do we just have to find a reconing
company that
can send us a custom cone and surround according to measurements we
make?
maybe Tuesday night we can take measurements, and try to figure out the
model
number of the speaker.
I wouldn't be surprised if we have to re-use the voice coil that's in
there now
- who knows what weird impedance it is (this is an
electromagnetic-stator
speaker powered by a tube amp!) and it's probably made with whale-bone
PCB
lacquer that will outlast anything we can buy, plus there's nothing
wrong with
it.
Thanks to Kent for rebuilding the amplifier
the organ is mentioned a couple of times in this Meeting from 2015:
https://sudoroom.org/wiki/Meeting_Notes_2015-09-02
I created a wiki page for it, please edit and contribute:
https://sudoroom.org/wiki/Hammond_Organ
-jake
17 Apr
17 Apr
9:11 p.m.
Nice. Thanks Kent & everyone for all their work on this. You’ll likely want
to take a picture of the permanent marking on the back of the cone as well.
Also I can’t remember, but is there a speed control on that leslie..? Some
were dual-speed, but a variac or something similar might allow for a full
range of speeds
Once we got the ramp a couple weeks ago, I finally moved it up to the stage
where it belongs. It could use some step-down casters affixed so it can be
more easily rolled to and from the wing at stage-left, where it should
probably live when not in active use.
David
On Fri, Apr 15, 2022 at 14:51 aaron via sudo-discuss <
sudo-discuss(a)sudoroom.org> wrote:
i need the size of the driver (15"? 12"?)
and the type of edge. a pic
of the edge would be good. and if there are any numbers or anything
printed on the cone anywhere...
On 2022-04-11 17:23, Jake wrote:
the Hammond organ with the Leslie speaker is
amazing! But i know the
speaker
paper is chewed up and decayed to hell and needs a recone.
Here's a video of Marc playing it:
https://www.instagram.com/tv/CcCaiMRDEKU/
Where can we find parts for a recone kit? I volunteer Arlo to do the
reconing,
he did a great job with a giant subwoofer recently.
What model speaker is it? Or do we just have to find a reconing
company that
can send us a custom cone and surround according to measurements we
make?
maybe Tuesday night we can take measurements, and try to figure out the
model
number of the speaker.
I wouldn't be surprised if we have to re-use the voice coil that's in
there now
- who knows what weird impedance it is (this is an
electromagnetic-stator
speaker powered by a tube amp!) and it's probably made with whale-bone
PCB
lacquer that will outlast anything we can buy, plus there's nothing
wrong with
it.
Thanks to Kent for rebuilding the amplifier
the organ is mentioned a couple of times in this Meeting from 2015:
https://sudoroom.org/wiki/Meeting_Notes_2015-09-02
I created a wiki page for it, please edit and contribute:
https://sudoroom.org/wiki/Hammond_Organ
-jake
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To unsubscribe send an email to sudo-discuss-leave(a)sudoroom.org
More options at
https://sudoroom.org/lists/postorius/lists/sudo-discuss.sudoroom.org/
9:20 p.m.
We were looking at attaching the foot pedals but that would require taking it
off of the dolley, since the pedals assembly needs support from underneath. An
alternative would be to attach the pedals and install casters under them as
well, so the whole assembly could be moved around or played. It does seem like
we should keep the organ movable, so wheels are a given. Ideally the whole
trifecta of organ, speaker, and foot pedals will be on a combined wheeled
island that anyone can move around without breaking anything
what could possibly go wrong
-jake
On Sun, 17 Apr 2022, David Keenan wrote:
Nice. Thanks Kent & everyone for all their work on
this. You’ll likely want
to take a picture of the permanent marking on the back of the cone as well.
Also I can’t remember, but is there a speed control on that leslie..? Some
were dual-speed, but a variac or something similar might allow for a full
range of speeds
Once we got the ramp a couple weeks ago, I finally moved it up to the stage
where it belongs. It could use some step-down casters affixed so it can be
more easily rolled to and from the wing at stage-left, where it should
probably live when not in active use.
David
On Fri, Apr 15, 2022 at 14:51 aaron via sudo-discuss <
sudo-discuss(a)sudoroom.org> wrote:
i need the size of the driver (15"?
12"?) and the type of edge. a pic
of the edge would be good. and if there are any numbers or anything
printed on the cone anywhere...
On 2022-04-11 17:23, Jake wrote:
the Hammond organ with the Leslie speaker is
amazing! But i know the
speaker
paper is chewed up and decayed to hell and needs a recone.
Here's a video of Marc playing it:
https://www.instagram.com/tv/CcCaiMRDEKU/
Where can we find parts for a recone kit? I volunteer Arlo to do the
reconing,
he did a great job with a giant subwoofer recently.
What model speaker is it? Or do we just have to find a reconing
company that
can send us a custom cone and surround according to measurements we
make?
maybe Tuesday night we can take measurements, and try to figure out the
model
number of the speaker.
I wouldn't be surprised if we have to re-use the voice coil that's in
there now
- who knows what weird impedance it is (this is an
electromagnetic-stator
speaker powered by a tube amp!) and it's probably made with whale-bone
PCB
lacquer that will outlast anything we can buy, plus there's nothing
wrong with
it.
Thanks to Kent for rebuilding the amplifier
the organ is mentioned a couple of times in this Meeting from 2015:
https://sudoroom.org/wiki/Meeting_Notes_2015-09-02
I created a wiki page for it, please edit and contribute:
https://sudoroom.org/wiki/Hammond_Organ
-jake
_______________________________________________
sudo-discuss mailing list -- sudo-discuss(a)sudoroom.org
To unsubscribe send an email to sudo-discuss-leave(a)sudoroom.org
More options at
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748
days inactive
755
days old
5 comments
4 participants
participants (4)
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aaron -
David Keenan -
Jake -
Kent Leech