[tanchiro58]

Take 6 equal lengths of wire and with 2 wires together [ 3 runs ] braid as you would a woman's hair braid. Then connect 2 runs [4 wires] to spade and the other run [ 2 wires ] to banana plug for each speaker.

Rollo,

I am very interested to braid the speaker cables but would you please be more specific since I am not good in this at all. What should I buy from Radio Shack? What size in gauge? Why are only 4 wires (2 runs) to spade whereas 2 wire (one run) to banana plug for each speaker? Thanks for your time.

Should we move this topic to a new thread?

Tan

[rollo]

Tanchiro58 and Matt,
                    I believe it is their best speaker cable that is all I was told. It is stranded copper and only comes in one guage. I will buying some soon and find out when I get there. It is sold by the spool. I did not inquire as to the specifics as time did not permit He said just go to radio shack and get their best. The reason for splitting the wires is that when all wound together the wire is too large for a spade. There is no other reason I was told. If you can find a spade to accept the large diameter of the wire go for it.

  have fun
 rollo

     If you would like to move be my guest. I was waiting until I actually made a pair for myself before I posted in the tweak sticky.

[micasso3]

Nick

I have a Sylvania Jan 5U4G. Can I substitute it with the 5Y3 in your Active Pre.



Thanks
Mike

[riverdog]

              Now that Nicholas has some "C" cores in house, fasten your seatbelt boys and girls, because the good ship Promitheus has just been turbocharged.
           
   rollo

Hi Rollo / Nicholas

Is this to mean the future/upgraded versions of the active pre might incorporate "C" core trannies? Having just missed the upgrade boat with the TVC - I must have had one of the very last Ver. 1's  - I am trying not to be left behind this time! In all this I am assuming that the "C" cores will be an improvement over the stock trannies. Am I correct?

Shamsur

[denjo]

Hi Nick

It would be nice to have a future product from your stable, of a premap with TVC dual mono trannies and an active tube buffer, all within the same housing (with separate PS for the tube component). Is this possible?

Best Regards
Dennis

[gooberdude]

Very cool Rollo, thanks for the info...    Rat Shack's best-normal spooled speaker wire?    that's easy enough to find.    I might grab some of their anti-cable like wire too and try some braiding.

i've been contemplating buying a soldering station & taking a lesson or 2 also, maybe this will be the impetus. 

 aa

[Joey B]

Rollo

Could you post a photo of the Radio Shack speaker wire project when you get done ? I've been trying to picture it and I just get more confused 

thanks
Joey B.

[tanchiro58]

I have a Sylvania Jan 5U4G. Can I substitute it with the 5Y3 in your Active Pre.

micasso3,

No you can not replace 5Y3 with 5U4. You can replace 5U4 with U52 or the best WE274B. The best 5Y3 tubes are the Phillip Miniwatt. Good luck.

Tan

[rollo]

Guys,
          You can use a 5AR4 tube instead of 5Y3 in power supply of preamp. I use a Tungsol 5AR4 and the stock Sylvania 5Y3 as the mood strikes. The Tungsol a bit laid back the Sylvania livelier.
         I would assume the "C" cores will find there way into the TVC, maybe even double "C" core if possible. There has to be a Statement or Reference series at some time down the road. Lucky us. These cores are the bomb in trannie design.
         On the Radio Shack wire, when you braid secure one end to [ all six conductors ] something you can put tension on. Say a door knob. Leave enough wire to tie to knob. Then separate wires into three pairs. Now you have three pieces of 2 wires each to braid . With tension on wire start braiding and wires straight [ pairs ]. If your still confused go to the bar and ask one of the Ladies to braid your cable. But you better explain yourself first or expect a nasty answer. You might even get lucky. Kidding aside any girl can braid hair, it is the same procedure. My daughter who is a hairdresser is doing mine. How nice. We are bonding. Maybe I can talk her into braiding some extras change my name to Mathew Bond, dress the cable and sell for $15000. How many do you want? Put your requests in early we are back ordered. Ha! Ha! Ha!
         I will post picture when complete next week. The Home Entertainment show is on in NY and I will be there Friday and Saturday. No time to braid, time to go to the show.
         I am leaving for Malaysia May 22nd or 24th. I can not wait to hear the GM70 amps with "C" core balanced trannies. The GM70 tube is driven by a 45 or 2A3 I believe. Are you kidding me, this thing is in mono block form to boot. I do not know the cost yet as Nicholas has his calculator out. I'm in trouble now. I might have to get him drunk or challenge him to a Golf match. My luck he is a scratch golfer or does not drink.
  After hearing the Dehavilland amp [ $10,000 stereo version ] which uses GM70 tube I want one. A GM 70 tube amp that is. What a sound. With Nicks trannies, power supply and circuit design, his GM70 amp should rock the tower of song. Nicks system looks awesome from the photos in the Affordable Audio interview. I think I will like the bass and probably everything else, did you see all those woofers. I'm bringing some organ and acoustic bass music. The NY Rave demo disc will do justice I think. Lonewolfy did a wonderfull job on the disc. Great music great recording. 
         
rollo
 

[1000a]

Rollo

How many watts per channel is this GM70 producing?  I am starting to get the impression it is a SET that can drive reg. speakers, no need for horns, ect.?

thanks,

[1000a]

OK Nick or Rollo

watts x 2  on the:

6C33 (SE):      18wx2     yes I got it-check
45/2A3 (SE):   wattsx2?    price of amp?   
GM70 (SE):     wattsx2?     price undecided.

thanks,

[rollo]

I believe it will be more than 50 watts. Maybe 70 Watts of SET nectar. Nicholas says he knows of a tube that can produce 250 watts per channel in SET form. It is two feet tall. Some type of transmitter tube . Can you imagine what that could sound like. Maybe impractical but what a show piece it would be.
       It doubles as a space heater in the winter I would guess. Wavac sells a 150W SET for $350,000 . For 250W SET from Promitheus a bargin at $250,000. What a great deal you save $100,000 and heat your house for free. You can use the savings to tune your Ferrari.
        I am serious about tube, just kidding about price. Nicholas keeps the tube type his little secret. I can only imagine what it might be. He just keeps teasing me, the devil. We can dream anyway.

   rollo

 P.S. 1000a, do not know wattage of amps for sure. The 45 0r 2A3 tubes usually provide 1.5 to 8 watts normally depending on design. GM70 50 to 70 Watts is my guess. Do not know pricing. I believe it depends on innards, caps and things.

[1000a]

That explains those giant tubes I have seen in some of the photo galleries here, mostly manu. gear at the shows.  Rocket ship looking amps w giant tubes on top what a trip!

Thanks Rollo.

Hmm a set amp that I can use with my speakers, a set amp with serious grunt wow that could solve my delimas best of all worlds.  A chance to exprience the waters the big guys play in, without big guy prices, could be a gift from audio heaven, may not come around too often as in mostly never-ever.  And Hell I have not really spent serious $$ on my stereo since 2001 well some in 2004, that makes me not really addicted at all, right?  So we are all in agreement I should just get it all shipped at one time save some shipping pennies.  Now where are those banks?  Gotta have that yard sale right NOW, everything must go the wife the kids the dog and cat, the car I do have one of those.

Seriously pondering (or is that Pipedreaming and lusting  ) a whole Promitheus Burrito.  Nick any comments on the hybyrd amp vs Rollos Ferrari GM70?
How much better? 

thanks,

[Joey B]

Sorry Rollo , I didn't ask the question quite right .

I got the braiding part , no problemo , I don't quite understand 4 wires to a spade and two wires to a banana , that would be unbalanced . You didn't mention whether the spade goes to positive and the banana go to negative , or visa versa  .why not terminate them both to spade ( or banana)?  I get the braiding part but not the connection part,at either end of the cable .

 I read a recent post at the asylum where you can change the balance of your system by adding more wire to either the plus (brighter) or negative (darker) of your speakerwire . I think it was posted by Unclestu. 

Joey B

[tanchiro58]

Hi Rollo,

Why don't you ask Nick to build a stereo or monoblocs with 211 or 845 tubes output? These tubes are very musical and can be reached to 20-50Watts output if Nick knows how to. Friend of mine build Push Pull 300B amp with either two or four tubes each channel (2-20watts and 4-50watts) and 2x211s for each channel. They sound exactly like SET amp.

Tan

[Whitese]

Wow, this is like the 4th diff amp that a Promethius pre has driven and it sounds awesome...nice lil amp.

[micasso3]

tanchiro58

Thanks for the info on the 5y3.

Btw, for those who are trying out the Active Pre, the pre out can be used to good effect with a set of Sennheiser 600 (terminated in RCAs), albeit a little low in volume, just good enough for night listening.  I have not tried the XLR outputs.

Cheers
Mike

[rollo]

JoeyB,
            The reason for splitting the wire to a spade is that all six conductors will not fit in the spade. So 4 to spade and two to banana .  You need to make 2 runs one for pos. and one for neg. for each speaker. Four braided runs in total, 2 for each speaker. Sorry if I was not clear before. You will need 100 feet for 8foot speaker cables.

 rollo

[rollo]

Wow, this is like the 4th diff amp that a Promethius pre has driven and it sounds awesome...nice lil amp.

 


 Whitese,
                    Nice looking amp. What is it, and what tubes does it use?

      rollo

[Whitese]

Rollo, its a Roger Modjeski 13EM7 amp...