Hello everyone
I hope all of you guys and ladies are doing well
My questions are these. I’m getting a old organ from someone near me. It’s a old unnamed organ, someone in the past had painted it. I will bringing it home tomorrow and will post photos of it then
I took the back cover off and could see countless small tubes and found the power amp, the power amp has two large transformers and a power transformer. More info on that tomorrow.
What I’d like to know is about the other tube banks. I seen they are labeled on the case
B,C, D and so on. I think they are for the different peddles and keys. For the tones
Tomorrow I’ll post photos of them as well.
What parts are good to save and pass on to you guys for your projects? I know it’s hard to say without the photos and so on.
I do know that I want to keep and use the tube amp for one of my systems. Once I get it out and see what all I can use and what I need to do for safely.
The lady did have it powered up and I could see all the tube glowing under all the years of dust. So hopefully that’s a good sign that it’s useable.
Until tomorrow
Thanks
I hope all of you guys and ladies are doing well
My questions are these. I’m getting a old organ from someone near me. It’s a old unnamed organ, someone in the past had painted it. I will bringing it home tomorrow and will post photos of it then
I took the back cover off and could see countless small tubes and found the power amp, the power amp has two large transformers and a power transformer. More info on that tomorrow.
What I’d like to know is about the other tube banks. I seen they are labeled on the case
B,C, D and so on. I think they are for the different peddles and keys. For the tones
Tomorrow I’ll post photos of them as well.
What parts are good to save and pass on to you guys for your projects? I know it’s hard to say without the photos and so on.
I do know that I want to keep and use the tube amp for one of my systems. Once I get it out and see what all I can use and what I need to do for safely.
The lady did have it powered up and I could see all the tube glowing under all the years of dust. So hopefully that’s a good sign that it’s useable.
Until tomorrow
Thanks
Powered up and working? This organ might be worth preserving as most of these have been raided for the valve amplifier and hence lost to posterity.
Really? I did think about that, but I’m not sure if it’s worth all the work. It’s a two tear keys and about 6 foot pedals. But it does have 6 or more tone tube boards in the back plus’s the tube power amp. And I believe it’s a two channel. The organ has two speakers, a left and a right
You need to find out what you have before you raid it for parts, for all you know it could be worth a fortune restored as is.
Have you got the organ yet and want to share pictures of the whole instrument, it's innards and it's name plate?
Would be a shame if you'd scrap a tonewheel Hammond organ just for the amplifier 😡.
Best regards!
Would be a shame if you'd scrap a tonewheel Hammond organ just for the amplifier 😡.
Best regards!
I’ll have it home later today, I’ve scraped a few Allen and Other brands in the past
Tube and SS and there really was no value in them. I also got two truck beds full of amps and power supply’s a few years ago and had a had time passing the parts around. I gave the last six 100 watt mono amps to a member on this fourm, he put them to work in his sound system
Tube and SS and there really was no value in them. I also got two truck beds full of amps and power supply’s a few years ago and had a had time passing the parts around. I gave the last six 100 watt mono amps to a member on this fourm, he put them to work in his sound system
Well, I'd bet that would have done no harm to nobody 😉. But scrapping a tonewhell, tube powered Hammond is a sacrilege!
Best regards!
Well it’s here, it’s not a high-end price
It’s a lowrey 6l6 organ tube amp
Made sometime between 1956 to mode to late 1960’s. It’s dirty as hell and looks like I may be able to get some parts from it
If anyone needs any of the small tubes
Just ask. I’ll ship you a lot of them, but first need to see what they are
It’s a lowrey 6l6 organ tube amp
Made sometime between 1956 to mode to late 1960’s. It’s dirty as hell and looks like I may be able to get some parts from it
If anyone needs any of the small tubes
Just ask. I’ll ship you a lot of them, but first need to see what they are
The 60 small tubes are 6x8, according to your picture of the tube layout label. Not very useful on audio applications. Maybe it is possible to fit them in a modified ECL80 low power amplifier schematic.
What do those banks of little tubes do in the organ? Are those oscillators for each key frequency?
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Yes, twelve supposedly freely running oscillators, one for each semitone of the highest octave, followed by frequency dividers to get the lower octaves.
Is that Lowrey organ of any value? Are they sought after? I really don't know 😕.
Best regards!
Is that Lowrey organ of any value? Are they sought after? I really don't know 😕.
Best regards!
It is obviously a single channel, mono amplifier. Most organ amplifiers have a good audio quality and I guess that this one would be nice too. The speaker may have some value.
It’s mono? Darn, I thought it was a two channel because of the two matching large transformers. Well I am a newbie with tubes
Thanks for the info. I need to find some wiring schematics for it
Thanks for the info. I need to find some wiring schematics for it
Clean those transformer tops off, and verify that the part numbers are identical.
(Mono or Stereo?)
(Mono or Stereo?)
Here are the two transformers showing the numbers. They are mostly the same. So I’m sure this means that it’s a mono amp
Please inform me about it
And the two speakers inside look like 12” or 10” and the frames are blue under the dust
I just found this about the speakers
They are a Jenson 12” and this is what I found about it
Therefore, a P12Q speaker has an Alnico magnet, a 12” diameter and is rated at 40 watts.
Thanks
Please inform me about it
And the two speakers inside look like 12” or 10” and the frames are blue under the dust
I just found this about the speakers
They are a Jenson 12” and this is what I found about it
Therefore, a P12Q speaker has an Alnico magnet, a 12” diameter and is rated at 40 watts.
Thanks
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This is most probably a stereo amplifier. Look, you alos have got two pairs of 6L6's, even if eaxh two look different from the others.
Best regards!
Best regards!
A stereo amp would have three transformers. I see two. That little thing is too small to power two channels - my guess is that’s a choke. So one power and one output trafo. One speaker, too, right?
The two Jensen are a good find, if they are still working. Kay Pirinha: the tube layout on post #8 lists two 6L6 next to the output transformer, and two 6AU4 next to the power transformer. They fitted cheap TV dampers as rectifiers. The bottom of the chassis picture does shows the standard consumer grade manufacturing quality of that era, with cost cutting as top priority and no provision to make servicing easy. A full restoration to factory specs would mean a lot of work, probably not worth of the effort at this time, but the organ may still "work" somewhat. Cloth wire seems to be still in good conditions.