S6 power supply should work for a bv power supply?

[peanut]

Sorry to keep beating this into the ground but I was offered a S6 chord organ which is more than likely in need of retubing but it has a stand alone 5u4 power supply And I'm hoping that I can tap that baby somewhere to get the 200+ B+vdc needed to power my bv preamp without having to modify the s6 power supply.

[peanut]

here's the supply and the s6 schematic,one of these is a magnified closeup of the 5u4 power supply and there's a few spots along the dc side of the 5u4 that say +300,+280,+265,+240,these are the B+ voltages correct??,please excuse my ignorance as I really can't read schematics,I'm hoping I can get a cool chord organ and be able to steal some volts for my BVs6 pscu.jpgs6 power supply.JPG

[torea]

Those are the positive DC voltages, correct. In the rest of the amp schematic you'd see little circles with the appropriate voltages over them telling you where those parts connect. I don't know how feasible it would be to connect the S6 to the BV as a B+ supply. If I'm not mistaken, you'd need to have both organs on to have the BV get B+. That would be a bit of a pain. And I don't know how the drain would affect the S6.

Can you solder at all? If you can, we can walk you through assembling a B+ supply from a different transformer. Looking at the schematics from the HammondWiki, you really don't need much.

Someone else might confirm if this transformer would work (current-wise) but if it does, you'd need this, and maybe 10 bucks of other parts. That'd be around 25-30 bucks total including shipping.
http://www.mouser.com/ProductDetail/...WjeG5oxNiPk%3d

[peanut]

actually I was going to try and rig it up so I'd have the little power supply from the s6 in a case with some screw terminals not unlike those found on any lab style variable powers supply(heathkit etc)and then just use it with both organs(but not at the same time)as there more than likely would be drain as you pointed out,the whole reason for doing it this way makes it as thrifty as possible for me because I don't need to buy any parts or do much soldering(btw,yes I'm pretty good with the gun having worked on guitars,indianajo and others have pointed out that it's not that much to buy the correct parts and assemble the power supply,I thought it would just be cool to have the little hammond unit in there and I have plenty of room in the bv,actually I have room for an ao29 and the s6 psu,and on a whole different note-one member suggested using a whole different preamp all together,I have not had the preamp out of the organ to see how it's wired up but isn't this preamp "voiced" for the organ?I'm not sure how another non organ amp would sound,I guess it's somthing to play around with but at this point I'm getting ancy and I want this thing up and running and to get the percussion installed and new felts.

[jdoc]

I think a modern preamp would give a much wider dynamic range and bring the organ to life........but what do I know?
Seriously I ran my M3 thru a Fender amp as a preamp and it sounds way better and brighter than the 125 Leslie amp i have even though the 125 was a total rebuild. Having tone controls available was nice too, I like the 125 tube amp but it is more muted even with a tweeter under the woofer.

[peanut]

jdoc,I think I'm going to go over guitar center in a bit and get one of those art tube mp's for $29 and tap the bv after the swell box rheostat,I have lots of amps/speakers so I got a bit to mix/match to get the best sound.Only thing is that I'll lose my scanner that way and if it had percussion I'd be losing that as well,As far as the bv/cv preamp goes,is there anything really special about it tonewise?,is there any filtering going on in there concerning the vibrato or is it just a a simple preamp?,if there's nothing special about it I'd like to just use somthing else so I got some reverb and a better EQ,when you use the fender amp as a pre on your M3 do you route it back thru the main on the AO29? or no?

[CEB]

FWIW, I am not sure what is meant here by wider dynamic range, but in general you don't want to hear anything above 5.5-6.0 kHz.

You get into higher frequencie ranges you start to here things that were not meant to be heard. This is why high freq horn drivers are a no go in Leslies.

As long as you drive guitar speakers or stock leslie configuration you will be OK. But a lot of full range cabnets and different tweeter options will sound like poo if those higher harmonic frequencies get passed on.

[jdoc]

tell it to Jon lord : )
Seriously i just meant it brings up mid range and lower treble lost due to old caps, not trying to get a shrill clone sound, I just miss the brightness I had with that setup that almost matched my M111

FWIW, I am not sure what is meant here by wider dynamic range, but in general you don't want to hear anything above 5.5-6.0 kHz.

You get into higher frequencie ranges you start to here things that were not meant to be heard. This is why high freq horn drivers are a no go in Leslies.

As long as you drive guitar speakers or stock leslie configuration you will be OK. But a lot of full range cabnets and different tweeter options will sound like poo if those higher harmonic frequencies get passed on.

[CEB]

You get above 8kHz you can start to get weird noises and stuff that people didn't know were there.

[Hamman]

Like more pronouced keyclick!