+ Reply to Thread
Page 1 of 32 12311 ... LastLast
Results 1 to 10 of 319

Thread: Christmas is coming and the DCB1's getting fat......

  1. #1
    Join Date: Jan 2014

    Location: london se6

    Posts: 499
    I'm AndyElectroNumpty.

    Smile Christmas is coming and the DCB1's getting fat......

    Hi folks

    Ok well once I pay the postman the princely sum of £16.05 in customs charges I'll have a DCB1 Hypnotise board and all the bits to Stuff it with from the nice Mr Teabag over at the DIY forum.

    So I thought I'd start a build thread to cover this adventure/potentially Scott like disaster (gently prodded by Steve! Who has also very kindly offered to help), also I won't have the time to start this until Christmas when I have some time off so I thought I'd start it off in good time so that I can ask lotsa stoopido questions and get informative answers before I start lining my ducks up so to speak.

    I intend to build a stock board 1st so that I can practice soldering and see how it goes before buying any boutique/more expensive parts at the outset. That way I can get my head around it all and if I completely bodge it up it won't be too costly lol (I don't seriously think this will happen btw).

    Also I'd like to see how it sounds in stock form 1st so that I can evaluate any changes later on - better resisters , caps etc along with the effects of hot rodding etc.

    I have asked for one of these to take a slightly different path for the selection of the source and because I thought I needed to solder as much as possible! Also it didn't cost too much at $16 so should be something interesting giving 6 inputs via relays. If I don't like how it works it can always be bypassed or taken out I guess.

    https://www.diyaudio.com/forums/grou...ml#post4716031


    So some dumb questions to start so I can get my shizzle together....

    1 What the fyk am I doing?

    2 I know about the resisters that can be changed to improve sound but will getting better spec power caps (for example) have any noticeable effect in the longer term? Or would certain parts of the circuit benefit from this more than others?

    3 Hook up wire , does this have to be rated at all for the build for power etc? I assume the mains in will have to be mains rated until it reaches the transformer but after this do I need to consider it? Any recommendations? Being Christmas I shall have some spare tinsel lying abound…..

    3 Fuses - how to rate the one needed? Is it in circuit in he live mains side? guess I'll get an integrated IEC and fuse holder for the ease of installation etc.

    4 As I understand resisters are non directional to place on the board (unlike caps) correct?

    5 Transformers, recommended at 2*15 volts 50Va, I intend to go to the 600 level hot rod in time so is ok for that or do I need something higher rated? Also are better transformers worth buying, for example Toroidy do a premium range will these make difference over to normal ones?

    6 I listen to headphones a bit late at night , can I run a another different set of outputs from it parallel to the ones connected to the power amps easily to connect my headphone amp?

    7 Remote volume control, do or not do? Is this too much hassle to consider ?

    8 Solder- looking at some but what sort of width/size is good for circuit board work to stop it getting too blobby? Thinner is better?

    Think that's all for now! Any advice or comments gratefully received.

    Cheers Andy (ElectroNumpty)

  2. #2
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 84,768
    I'm AudioAl'sArbiterForPISHANTO.

    Default



    Get yer camera oot!

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

    BE HAPPY EVERYDAY!

  3. #3
    Join Date: Jan 2014

    Location: london se6

    Posts: 499
    I'm AndyElectroNumpty.

    Default

    Certainly Marco , unfortunately all I have to show for it at the moment is this ! Lol

    Dont worry once underway I'll stick some up.

    Cheera Andy.
    Attached Images Attached Images

  4. #4
    Join Date: May 2017

    Location: West Sussex, UK

    Posts: 635
    I'm Steve.

    Default

    Hi Andy,
    Good on you mate !!!
    Welcome to the world of DCB1 !!!!

    Take your time and lots of pics....
    I've got a spare fuse and holder pm me your address and I'll send you it.
    The caps that come supplied are really quite good if you bought the kit??? and shouldn't need replacing !!
    Remote or not ??? Well i guess it depends on what you want to spend Alps pot with remote and power board is well less than £100
    Khozmo and remote £360 ish

    I tried the relay input board - no comment. Save £45 to 50 quid by not buying and populating, and wire straight
    to the Selector switch - one less piece of equipment in the chain!!!

    A slightly bigger tx would be better if you go to 600mA but no need to go really expensive.
    Will send you the link for the one i got, reasonably cheap and capable of going the whole hog if you so desire.
    The dale resistors are better than you would think and already supplied if you bought the kit???
    I would also recommend Aluminium rather than steel case if your gonna push to 600mA unless your going to fit large heatsinks

    S.
    Last edited by STD305M; 01-12-2018 at 22:02.
    Project 2experience sb dc, Cart: At33ptg
    Firebottle Mono Blocks
    Nelson Pass Dcb1 turbo Dual Mono @ 1.2A. Khozmo 50k series attenuator.
    CD Player: Cyrus cd8se
    Spendor S6e
    Spotfire rca throughout - xt40 speaker cable.

    Steve...

  5. #5
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 8,147
    I'm Oliver.

    Default

    Good on ya mate.

    Most decent hookup wire is rated. I used some 700v rated stuff. Seemed absolutely fine!!

    Better components usually lead to better results. What I would say is don't go bezerk, there's only fine margins after a point.

    Steve and I are trying some Audio note resistors and he's already took his out

    Like I say, more money is not necessarily necessary.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Raspberry Pi 3+ With Allo Boss.
    Amplification: Nelson Pass DCB1 with Khozmo 48 Step Series Attenuator & Krell KSA100 MK2 Amplifier
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & NEW SPOTFIRE Tonearm cable
    Speakers: Pioneer CS-77A

  6. #6
    Join Date: Jan 2014

    Location: london se6

    Posts: 499
    I'm AndyElectroNumpty.

    Default

    cool thanks , have the dcb1 kit coming so will use that 1st . Steve a link to the traffo would be great thanks. CheersAndy

  7. #7
    Join Date: Jan 2014

    Location: london se6

    Posts: 499
    I'm AndyElectroNumpty.

    Default

    oh yes forgot rfi filter, best to fit one ?

  8. #8
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 8,147
    I'm Oliver.

    Default

    Quote Originally Posted by smangus View Post
    oh yes forgot rfi filter, best to fit one ?
    I had one, never tried it without so can't say what effect it had.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Raspberry Pi 3+ With Allo Boss.
    Amplification: Nelson Pass DCB1 with Khozmo 48 Step Series Attenuator & Krell KSA100 MK2 Amplifier
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & NEW SPOTFIRE Tonearm cable
    Speakers: Pioneer CS-77A

  9. #9
    Join Date: May 2017

    Location: West Sussex, UK

    Posts: 635
    I'm Steve.

    Default

    Hi Andy

    Never had rfi filter in either of the dcb1

    Both didnt suffer from rfi interference

    S.
    Project 2experience sb dc, Cart: At33ptg
    Firebottle Mono Blocks
    Nelson Pass Dcb1 turbo Dual Mono @ 1.2A. Khozmo 50k series attenuator.
    CD Player: Cyrus cd8se
    Spendor S6e
    Spotfire rca throughout - xt40 speaker cable.

    Steve...

  10. #10
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 84,768
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by smangus View Post
    Certainly Marco , unfortunately all I have to show for it at the moment is this ! Lol

    Dont worry once underway I'll stick some up.

    Cheera Andy.
    Lol - no worries... You get the idea though - pics on threads like this are vital!

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

    BE HAPPY EVERYDAY!

+ Reply to Thread
Page 1 of 32 12311 ... LastLast



 

Posting Permissions

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