Drip RCA BA-6A Clone

[soundsactive]

anyone else building one of these? curious as to everyone's progress on it. i have some caps and resistors coming in, but it is low on my priority list right now.

 

[desol]

No but it looks nice...and sounds nice.

 

[Brolik]

I have a board, but as you say it's quite low on the list and I haven't made one lick of progress other than going through and sorting the BOM.

 

[dandeurloo]

I'm close on finishing up cases for this so I suppose that means I will have a few laying around and will probably end up building one or two as well.  Just need to find the time. Sound samples sound amazing.

 

[soundsactive]

hmm... dan i would love to find out how much your case is and what it looks like!

 

[dandeurloo]

send me an email and I can get you a pdf of the front panel.  I'm waiting for my paint color to come in for them and then I can finish them up.

 

[bancho]

Has anyone already built it?
I was planning to do it in the near future but there are some other more important things on my bench... and the interstage tx is still mystery (except sowter solution).
I was searching for the output attenuator and found Mallory T-600. It is labeled as 4W dc and 15W audio. Is this sufficient (the manual mentions 5W)? Is it stepped?
There are also different Daven ones. For the 600 Ω there are different types. Which one is the one?
What would be the best choice? Why?
Thanks for (any) the answers!

 

[Reo]

I haven't built my BA6A yet but I plan to use the mallory. It is not stepped.

I am using the Mallorys as output attenuators for two Collins 356e tube comps I just racked up and they're working fine.

The best output attenuator for this project probably depends on your criteria and budget but I can't speak from experience on any of the other options.

Here is a great thread about the interstage transformer. http://groupdiy.com/index.php?topic=55693.20

I am planning on using the Lundahl 1635 for the interstage but I haven't purchased it yet.

 

[mwrichardson]

Hi guys. I was lucky and found a drip ba6a pcb and one of Dans racks.  I need the build doc PDFs . Any one have a copy? Message me or email to [email protected]. Thanks!

 

[soundsactive]

drip website is live again!

anyone make any progress? just finished a p2p La-2A, so now this is my next project!

 

[scott gradel]

Hi guys. I was lucky and found a drip ba6a pcb and one of Dans racks. I need the build doc PDFs . Any one have a copy? Message me or email to [email protected]. Thanks!

Did you ever get any doc for this ba6a? I bought the whole legacy set in 2019 and been plucking away at most of it but no info on this one

 

[soundsactive]

Did you ever get any doc for this ba6a? I bought the whole legacy set in 2019 and been plucking away at most of it but no info on this one

I see it's been over a decade since I posted. I have a printed copy of all of it and maybe a digital copy somewhere if you need it.

About to start back in on it. I think I have most of the parts at this point. Just need to mount the board and get some tube caps.

 

[bundy]

I have a board-set that I plan on building in the next 12 months.

I have all of the build documents saved.
Should I upload them to this thread?

 

[Ian]

Yes please!!! I built one years ago, mine needs calibration and I can't find my docs. They don't seem to be hosted anywhere.

 

[bundy]

Here are all of the DRIP docs that I have for the BA-6A.

 

[bundy]

Here is the original RCA BA-6A instruction manual.

 

[JMan]

Thanks for sharing! The documents Greg provided when I bought a board a couple years ago were missing a significant number of these pages. Not sure why he would have removed them, but it’s very helpful to see the complete information.

 

[tulippx]

Yes, thank you! Quite helpful.

 

[Mickeyvee]

I see it's been over a decade since I posted. I have a printed copy of all of it and maybe a digital copy somewhere if you need it.

About to start back in on it. I think I have most of the parts at this point. Just need to mount the board and get some tube caps.

Hi there i have a drip rca ba6a that my ol tech here in Australia perth has atm i acquired a nos rca ba6a meter what he needs is to be able calibrate it and fix a few issues he asked me if i could get a actual schematic and the operation / alignment procedure.
Help so far on this forum is fab im nrw to it so if i seem a bit niave at 63 i am thanx
heaps