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Isolation transformer in CIRCLOTRON

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In paul speltz tweks, transformer upgrad,toroid corp #749-1202 470va thats 235va per winding? Do i wont to pull down VA an V. My diy 14 6as7 per ch CIRCLOTRON 250va will work but some of these amps are big bucks. An the move to 500va per winding for my amp BIG DIEAL? Over all sound upgraded so whay up.thank,s T.V.

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Re: Isolation transformer in CIRCLOTRON - tubevibb 06:49:55 09/17/06 (13)
Well if paul s. pulled out the stock transformer of M60II. Thay were $2400. kit.If new transformer 470va $78.00 each. what was the stock?300va.Do u think it better?
- It might be better, but... - BlackPlasticSound 09:45:40 09/18/06 (0)
  If I remember correctly, Paul Speltz replaced the transformer primarily because he needed more heft to power the 6336 tubes he was using.
  Not sure what the bigger X-formers would do for/to an ordinary M60-MKii.
  Best, John
- Re: Isolation transformer in CIRCLOTRON - Satelliteman 14:44:02 09/17/06 (11)
  Hi Tubevibb ... I cannot comment regarding prices and what was used on the original - I have never owned a factory kit / factory build .
  However , all I can say , is that I purchased my 1000 VA toroids for approx 140 Australian Dollars each.
  Stu
  - Re: Isolation transformer in CIRCLOTRON - tubevibb 05:27:23 09/18/06 (10)
    I have a kit M60II, 1998,99 $2499 now $5/6000.Is it good to pull down v. Say 150v all tube in,Now 135v is that ok,good for sound? In M60II what,s va160 per winding?
    - Re: Isolation transformer in CIRCLOTRON - Satelliteman 15:55:00 09/19/06 (9)
      I'll have a guess at the Question regarding the voltage for output stage .
      Assuming the secondary vac is 100v , then rectified & Smoothed will be (1.4 x sec vac ) minus full wave bridge volt drop . ( 0.7 x 2 )
      => 100 x 1.4 = (140 vdc) - ( 1.4 ) = 138.6 Vdc .
      What do you think ? - is this correct ?
      Stu
      - Output B+ voltages - Legendre 07:22:35 09/21/06 (8)
        
        In Reply to: Re: Isolation transformer in CIRCLOTRON posted by Satelliteman on September 19, 2006 at 15:55:00:
        
        In an M-60, the no-load voltage of the output B+ supplies is around 155V. Under full load (amp warmed up, and fully biased) it should settle at about 138V.
        
        Re: Output B+ voltages - Satelliteman 20:01:22 09/21/06 (7)
        
        In Reply to: Output B+ voltages posted by Legendre on September 21, 2006 at 07:22:35:
        
        If we are to talk voltages - just how much AC ripple is present ? Under Load , and NO Load .
        Ps - Ive explained that my DC supplies are down , due to the fact my primaries are all down by a percentage ( appox 5 % ) ie ..wound for 240 vac ...we actually have 230 vac .
        My supplies are also built with CRCRC design .
        Stu
        
        Re: Output B+ voltages - Ttubevibb 07:09:13 09/22/06 (6)
        
        In Reply to: Re: Output B+ voltages posted by Satelliteman on September 21, 2006 at 20:01:22:
        
        My supphes have NO CRCRC. But 30,000uf per leag +/- per amp.thanks T.V.
        
        Capacitor Bank values - Satelliteman 23:31:44 09/22/06 (5)
        
        In Reply to: Re: Output B+ voltages posted by Ttubevibb on September 22, 2006 at 07:09:13:
        
        Tubevibb ...Id like to see youre amps ...please let me see , just how you got so much storage under the hood ~!
        Youre email address ???
        Stu
        
        Re: Capacitor Bank values - tubevibb 12:32:19 09/23/06 (4)
        
        In Reply to: Capacitor Bank values posted by Satelliteman on September 22, 2006 at 23:31:44:
        
        Sorry no hood. ALL SO HEATRES 7V 80A FOR ALL. One transformer thanks.
        
        Re: Capacitor Bank values - Satelliteman 15:06:20 09/23/06 (3)
        
        In Reply to: Re: Capacitor Bank values posted by tubevibb on September 23, 2006 at 12:32:19:
        
        The " Hood " , a term meaning under the cover . or under the chassis .
        7v is above spec , but I guess you are thinking about voltage drop while underload . so will be closer to 6.3 in the end result .
        Is this amp of yourse one big Stereo chassis ?? ...If I added mine together , they would be 62 amp @ 6.3 vac .
        Again , I d like to see a picture of your amazing creation .
        Stu
        
        Re: Capacitor Bank values - tubevibb 06:31:11 09/24/06 (2)
        
        In Reply to: Re: Capacitor Bank values posted by Satelliteman on September 23, 2006 at 15:06:20:
        
        Yes, 6as7 was 28 soon 40.One chassis.All 10 6sn7 on it own chassis.
        
        Re: Capacitor Bank values - Satelliteman 23:42:48 09/24/06 (1)
        
        In Reply to: Re: Capacitor Bank values posted by tubevibb on September 24, 2006 at 06:31:11:
        
        Ahhhh - I see a picture in my mind ..a double layered amp ..like a Stack ...I wanted to build with top & bottom layers .. big glass on top ( most heat ) ..small glass on bottom ...send the V4 signals up the pillars to the top chassis . !
        Cheers Stu
        
        Re: Capacitor Bank values - tubevibb 05:11:13 09/25/06 (0)
        
        In Reply to: Re: Capacitor Bank values posted by Satelliteman on September 24, 2006 at 23:42:48:
        
        Vary coooool! I do like the looook,s.But i have a room for all my work on CIRCLOTRON,S Amps pre speaker.I am in room next to my shop no HEAT! Big deal in FLA. Thanks
Re: Isolation transformer in CIRCLOTRON - Satelliteman 01:50:56 09/17/06 (0)
Tubevibb - I cannot understand youre full sentences - I am very frustrated .
Are you trying to say that you think the 500 VA per winding is...
1/ a good idea ?
2/ a bad idea ?
As you meantioned the words " BIG DEAL " ...which in english has many meanings .
Tubevibb - Email Address ???? - Please send to me , I want to show you a picture .
Stu

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