Mains Cables R Us. Temple Audio  BD-Audio 
Page 1 of 7 123 ... LastLast
Results 1 to 20 of 137

Thread: SIT amp project

  1. 15-01-2012, 10:16 PM #1
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No

    SIT amp project

    Gonna give this project a go
    http://www.diyaudio.com/forums/diyau...-part-1-a.html

    2SK82's ordered KD33 variant.
    Reply With Quote Reply With Quote
  2. 15-01-2012, 10:17 PM #2
    i_should_coco
    i_should_coco is offline
    Rubberoid i_should_coco's Avatar
    Join Date
     Sep 2006
    Posts
     17,392
    Real Name
     Coco-san
    Turn Table
     Voyd Reference
    T/Arm & Cart
     HR100S/Strain gauge
    SUT/Phono
     DIY
    Digital Source 1
     Laptop/JRiver
    DAC
     Nadja
    Speakers
     4.1-way active horns
    Pre Amp
     Nadja DSP
    Power Amp
     Lots
    In the Hi-Fi industry?
     No
    Good luck! Will be watching closely.

    BTW, you can get 2SK79 small signal VFETs on ebay, too.
    Everything rattles, you just need to shake it hard enough.
    Reply With Quote Reply With Quote
  3. 15-01-2012, 10:43 PM #3
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    Cheers Pete
    Just sticking to the fig11 cct at the mo,some nice bulbs hopefully coming from across the pond
    Last edited by RobsterD; 16-01-2012 at 06:58 PM.
    Reply With Quote Reply With Quote
  4. 16-01-2012, 04:11 PM #4
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    couple of funky heatsinks ordered 200mm length.
    The 2SK82's dissipate around 45watts, their thermal resistance is around 0.5C/W
    http://www.birminghamaluminium.com/
    bias cct will be the generic version
    Bulbs are here
    http://www.elightbulbs.com/Sylvania-...S30-Light-Bulb
    Last edited by RobsterD; 06-05-2012 at 11:58 PM.
    Reply With Quote Reply With Quote
  5. 17-01-2012, 09:10 PM #5
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    Interesting article on mounting TO3 packages
    http://www.ti.com/lit/an/sboa020/sboa020.pdf
    Reply With Quote Reply With Quote
  6. 18-01-2012, 11:38 AM #6
    anubisgrau
    anubisgrau is offline
    Wammer
    Join Date
     Oct 2006
    Posts
     2,577
    Location
     Belgrade, ,
    Real Name
     Gordan
    Turn Table
     Stabi S
    T/Arm & Cart
     Stogi S, ACE SL
    SUT/Phono
     Cinemag
    Digital Source 1
     Touch
    Digital Source 2
     AKAI CD79
    DAC
     Altmann Attraction
    Integrated Amp
     Marantz PM-5
    Speakers
     Oris Swing MkII
    Pre Amp
     Custom TVC
    Power Amp
     Hiraga 20, 10Y SETs
    can you put some resistors instead of bulbs or there's some specific reason why they are there?
    Horn OK Please!
    Reply With Quote Reply With Quote
  7. 18-01-2012, 11:50 AM #7
    i_should_coco
    i_should_coco is offline
    Rubberoid i_should_coco's Avatar
    Join Date
     Sep 2006
    Posts
     17,392
    Real Name
     Coco-san
    Turn Table
     Voyd Reference
    T/Arm & Cart
     HR100S/Strain gauge
    SUT/Phono
     DIY
    Digital Source 1
     Laptop/JRiver
    DAC
     Nadja
    Speakers
     4.1-way active horns
    Pre Amp
     Nadja DSP
    Power Amp
     Lots
    In the Hi-Fi industry?
     No
    Quote Originally Posted by anubisgrau View Post
    can you put some resistors instead of bulbs or there's some specific reason why they are there?
    Sure, the only reason(s) to use lightbubs is because they look nice. And they have essentially a built in heatsink.
    Everything rattles, you just need to shake it hard enough.
    Reply With Quote Reply With Quote
  8. 18-01-2012, 12:02 PM #8
    pure sound
    pure sound is offline
    HiFi Dealer Wammer pure sound's Avatar
    Join Date
     Sep 2011
    Posts
     3,907
    Location
     West Devon
    Turn Table
     Voyd & Technics
    T/Arm & Cart
     FR64s & Jelco
    SUT/Phono
     ANS6 Aurorasound
    Digital Source 1
     A8500
    Speakers
     Horn
    Pre Amp
     LCR Phono & L10
    Power Amp
     300B
    In the Hi-Fi industry?
     Yes
    What variety of o/p coupling cap do you intend using?
    Reply With Quote Reply With Quote
  9. 18-01-2012, 12:04 PM #9
    i_should_coco
    i_should_coco is offline
    Rubberoid i_should_coco's Avatar
    Join Date
     Sep 2006
    Posts
     17,392
    Real Name
     Coco-san
    Turn Table
     Voyd Reference
    T/Arm & Cart
     HR100S/Strain gauge
    SUT/Phono
     DIY
    Digital Source 1
     Laptop/JRiver
    DAC
     Nadja
    Speakers
     4.1-way active horns
    Pre Amp
     Nadja DSP
    Power Amp
     Lots
    In the Hi-Fi industry?
     No
    I plan to build one of these with an output transformer and a decent choke input supply/shunt reg.

    Eventually.
    Everything rattles, you just need to shake it hard enough.
    Reply With Quote Reply With Quote
  10. 18-01-2012, 12:07 PM #10
    pure sound
    pure sound is offline
    HiFi Dealer Wammer pure sound's Avatar
    Join Date
     Sep 2011
    Posts
     3,907
    Location
     West Devon
    Turn Table
     Voyd & Technics
    T/Arm & Cart
     FR64s & Jelco
    SUT/Phono
     ANS6 Aurorasound
    Digital Source 1
     A8500
    Speakers
     Horn
    Pre Amp
     LCR Phono & L10
    Power Amp
     300B
    In the Hi-Fi industry?
     Yes
    & a sit input stage?
    Reply With Quote Reply With Quote
  11. 18-01-2012, 12:11 PM #11
    i_should_coco
    i_should_coco is offline
    Rubberoid i_should_coco's Avatar
    Join Date
     Sep 2006
    Posts
     17,392
    Real Name
     Coco-san
    Turn Table
     Voyd Reference
    T/Arm & Cart
     HR100S/Strain gauge
    SUT/Phono
     DIY
    Digital Source 1
     Laptop/JRiver
    DAC
     Nadja
    Speakers
     4.1-way active horns
    Pre Amp
     Nadja DSP
    Power Amp
     Lots
    In the Hi-Fi industry?
     No
    Everything rattles, you just need to shake it hard enough.
    Reply With Quote Reply With Quote
  12. 18-01-2012, 05:40 PM #12
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    Quote Originally Posted by pure sound View Post
    What variety of o/p coupling cap do you intend using?
    Not got to the stage of ordering components yet,any advice from you pro's appreciated !
    Reply With Quote Reply With Quote
  13. 01-02-2012, 04:22 PM #13
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    Some rather large heat sinks arrived today
    Reply With Quote Reply With Quote
  14. 01-02-2012, 04:35 PM #14
    AmDismal
    AmDismal is offline
    There is no honk AmDismal's Avatar
    Join Date
     Apr 2007
    Posts
     8,249
    Location
     St Albans
    Real Name
     Adam
    T/Arm & Cart
     AT95E
    Digital Source 1
     Has a keyboard
    DAC
     Hums
    Speakers
     Made of fish
    Power Amp
     Average >> Median
    In the Hi-Fi industry?
     No
    Cool!
    Fuck the horns, I just listen to the Snells now.
    Reply With Quote Reply With Quote
  15. 08-02-2012, 09:52 PM #15
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    all the bits now ordered,some nice transformers coming from Canterbury Windings and some trendy bulbs and big caps coming from across the pond courtesy of a crazy Wammer clue he hobbles at the mo hope its getting better !
    Last edited by RobsterD; 08-02-2012 at 09:54 PM.
    Reply With Quote Reply With Quote
  16. 09-02-2012, 01:40 AM #16
    ncdrawl
    ncdrawl is offline
    Cock with Aspergers ncdrawl's Avatar
    Join Date
     Dec 2008
    Posts
     7,850
    Location
     Southport, NC USA
    Real Name
     Teddy Ray
    Turn Table
     Rebuilt LAB 500
    T/Arm & Cart
     SHURE M3D
    SUT/Phono
     Custom Built Valve
    Digital Source 1
     Squeezebox Touch
    DAC
     Forssell MDAC-2
    Integrated Amp
     MasterSound/Bryston
    Speakers
     K&H 0300D
    Pre Amp
     In my DAC
    Power Amp
     In my Speakers.
    In the Hi-Fi industry?
     No
    good luck brother.

    that crazy crippled bastard sounds like a real champ!
    Be just and if you can't be just, be arbitrary- William S. Burroughs
    Reply With Quote Reply With Quote
  17. 24-02-2012, 10:04 PM #17
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    2SK82'S mounted and bias cct done.
    Reply With Quote Reply With Quote
  18. 24-02-2012, 10:16 PM #18
    sonichit
    sonichit is offline
    Wammer sonichit's Avatar
    Join Date
     Mar 2010
    Posts
     409
    Location
     bottom end
    In the Hi-Fi industry?
     No
    don't go scratching them speakers rob
    [/QUOTE]
    Reply With Quote Reply With Quote
  19. 24-02-2012, 10:35 PM #19
    RobsterD
    RobsterD is offline
    Wammer
    Join Date
     Apr 2007
    Posts
     1,704
    Location
     Southampton
    Turn Table
     Garrard 401
    T/Arm & Cart
     Alphason,AT 0C9
    SUT/Phono
     EAR 834P
    Digital Source 1
     MAC Mini
    Speakers
     Oris Horns,AER MD3's
    Pre Amp
     Trinnov ST2
    Power Amp
     Fi X3 300B,SIT
    In the Hi-Fi industry?
     No
    ha ha no probs, no scratches,honest !
    the IMF's now have a pair of HF2000's,seemed to be easier to get than 8ohm HF1300's they are like rocking horse....
    Speakers now mounted on some M6 spikes instead of those funny feet.
    Sounding very nice
    Reply With Quote Reply With Quote
  20. 24-02-2012, 10:53 PM #20
    sonichit
    sonichit is offline
    Wammer sonichit's Avatar
    Join Date
     Mar 2010
    Posts
     409
    Location
     bottom end
    In the Hi-Fi industry?
     No
    that's great news rob your find them elusive 8ohm soon,
    still not got the amps done yet when i do I'll let you know, good luck with your project very interesting
    Last edited by sonichit; 24-02-2012 at 10:55 PM.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules