Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Ed_Chambley on August 03, 2013, 11:07:23 am
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I have been selling off most of my Leslie cabinets, but yesterday I found the nicest 64, 147 I have ever ran across. Bone stock, cabinet perfect and has a SS preamp. I know what I am going to do with this one, but there was something else I have never fooled with.
In with the deal is a Hammond tone cab, JR20. Oil filled reverb and it works flawlessly. The amp is dual channel. Schematic attached. I was wondering if anyone has used one of these for a guitar build. It looks like it may be able to be a low power twin style amp. Tried it like it is and doesn't sound very good for guitar, but it is very nice on an organ. Not sure why, but guitar is very stiff sounding, but is does have a very nice reverb.
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More Photos
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Front and Leslie
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wierd i was just looking at one of these on ebay last night.nice find.
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btw there is a thread on this site for this.search hammond jr20.
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btw there is a thread on this site for this.search hammond jr20.
I did a search and found an old thread Geezer started, but it did not have much info. I was sort of thinking a 2 speaker amp running one of the OT's completely dry and the other carrying all the effects. Just do not know much about these things as they do not bring much money, but seem they have a lot of great parts and speakers.
I will know more when I get to speak to my friend who does Hammond installs, but I thought one of the guys here may be familiar. I know it does not sound good with the Leslie SS preamp.
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Beautiful Leslie cabinet. I have a leslie tone wheel project i am working on right now. Im going to use a universal AC/DC motor for variable speed using DC voltage power and a control switch. Man it is the sound from heaven
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I had a Hammond PR-40 that hooked up with guitar. It sounded Ok--the best part was it was two channels also and I ran an Art ECC preamp in it stereo and got some pretty good sounds. I had an old battery charger chassis and made a power supply to the Hammond rectifier circuit andd installed inputs for the Art preamp that ran into a special octal plug connection in the Hammond. I finely decided it was too big and tore it down and sold it on e-bay. I still have the chassis power supply/preamp connection. Plate
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Beautiful Leslie cabinet. I have a leslie tone wheel project i am working on right now. Im going to use a universal AC/DC motor for variable speed using DC voltage power and a control switch. Man it is the sound from heaven
There is nothing quite like a Leslie. You just cannot simulate air movement, but we all are trying. Funny thing, I have a friend who plays a 5e3 build with a fan in front of it to chop air. It really sounds good, but I laugh every time I see it.
The new leslie G37 (G for guitar) has a Gas pedal for variable control speed. It is simple to mod one for this, but I never have. Maybe if I can find an old 45 model, the short leslie, I would mod it. I paid $250 plus a service to the one the church uses for this 147 with the preamp and it needs nothing. They got a satin black Hammond and matching speakers almost 20 years ago and have kept the one I got for a back-up. They finally decided to let it go. When complete like this they are to valuable to modify and to tell you the truth, I am tired of working on them. Before I start I go ahead and bust one of my knuckles and get it out of the way :l2:
All those flathead screws :sad2: