GK-1 Picture

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Regis B

GK-1 Picture
« on: 5 Sep 2003, 12:54 am »
Hi,

I have finished putting my GK-1 in it's enclosure. It's the CH-1  from http://www.iagaudio.com .  the Volume control is a TKD plastic pot and the source selection is based on relais.

It just sound Wonderfull great pace, sense of air and details.

Big thank the Hugh for the sound.



 Just tell me what you think of the Job.





Regis

stvnharr

  • Full Member
  • Posts: 740
GK-1 Picture
« Reply #1 on: 5 Sep 2003, 02:41 am »
Nice work Regis.   Maybe I now find the chassis for my GK-1.
Where do you get the nice little decals?

AKSA

GK-1 Picture
« Reply #2 on: 5 Sep 2003, 04:25 am »
Very good work, Regis!

Congratulations!

Perhaps it's a shame I didn't have the manual switched version of the GK-1 available when you bought your EL;  it would have made the input wiring/switching a lot simpler I suspect.

Steven, the decals are available from me.

Would you like two?  I can send you some!

Cheers,

Hugh

blizzard

GK-1
« Reply #3 on: 5 Sep 2003, 09:38 am »
Hi Regis,
  Real nice job!  I have 2 questions for you:
     1.  The transformers are pretty close to each other and the filament wire runs are relatively long.  Do you have any hum?  If so, how loud?
     2.  I noticed that you used what look like high speed soft recovery diodes for one of the 19volt bridege recifiers and the kit-supplied diodes for the other channel.  Do you find that you hear a difference?
             Thanks,
                 Steve

EchiDna

Re: GK-1
« Reply #4 on: 5 Sep 2003, 09:49 am »
Quote from: blizzard

 
     2.  I noticed that you used what look like high speed soft recovery diodes for one of the 19volt bridege recifiers and the kit-supplied diodes for the other channel.  Do you find that you hear a difference?
             Thanks,
                 Steve


wow you have keen eyes Steve! I didn't even spot the rectifiers first time around...

And I agree, very nice job Regis!

I notice a few swapped caps in there as well, looks like some BG's?

you have made me activate myself to finish off my GK-1 chassis, it's been too long on a piece of plywood ;-)

stvnharr

  • Full Member
  • Posts: 740
GK-1 Picture
« Reply #5 on: 5 Sep 2003, 01:42 pm »
Hugh,
Won't need decals until I return to Ballarat.

Regis B

GK-1 Picture
« Reply #6 on: 5 Sep 2003, 10:28 pm »
Quote from: stvnharr
Nice work Regis.   Maybe I now find the chassis for my GK-1.
Where do you get the nice little decals?


The white lettering is form Datamark Dry-tranfer with a coating. You can get it in some electronic store or At triode-electronic or Antique Electronic Supply.

The Aksa sing are form Hugh.

Regis.

Regis B

GK-1 Picture
« Reply #7 on: 5 Sep 2003, 10:40 pm »
Quote from: AKSA
Very good work, Regis!

Congratulations!

Perhaps it's a shame I didn't have the manual switched version of the GK-1 available when you bought your EL;  it would have made the input wiring/switching a lot simpler I suspect.

Steven, the decals are available from me.

Would you like two?  I can send you some!

Cheers,

Hugh


Well the switching is pretty Simple A 2 days Job  . I only use a single ULN2803 Buffer with pullup. All relay( Nais tq2-5v)  are ON except the one that have a signal running thru it .  

The other part sent the signal to the Preamp or the Headphone amp.



And having 3/4" between channel help with the headphone.

Regis.

Regis B

Re: GK-1
« Reply #8 on: 5 Sep 2003, 10:55 pm »
Quote from: blizzard
Hi Regis,
  Real nice job!  I have 2 questions for you:
     1.  The transformers are pretty close to each other and the filament wire runs are relatively long.  Do you have any hum?  If so, how loud?
     2.  I noticed that you used what look like high speed soft recovery diodes for one of the 19volt bridege recifiers and the kit-supplied diodes for the other channel.  Do you find that you hear a difference?
             Thanks,
                 Steve



Anser

1. No hum, the Kimber twisted pair probably help with 48 twist per foot.

2. No difference , The Harris diode are to replace the one i had overheated.  The supplyed one have 30ns recovery time mine are 25ns. Only Shocttky migh be faster.

Regis B

Re: GK-1
« Reply #9 on: 5 Sep 2003, 11:13 pm »
Quote

And I agree, very nice job Regis!

I notice a few swapped caps in there as well, looks like some BG's?

you have made me activate myself to finish off my GK-1 chassis, it's been too long on a piece of plywood ;-)



All swapped Cap are Panasonic FC + the 2 red elna cerafine. I don't trust the asian cap.
+ 2 Mit for C1.


[/quote]

EchiDna

Re: GK-1
« Reply #10 on: 6 Sep 2003, 12:24 am »
Quote from: Regis B
Quote

And I agree, very nice job Regis!

I notice a few swapped caps in there as well, looks like some BG's?

you have made me activate myself to finish off my GK-1 chassis, it's been too long on a piece of plywood ;-)



All swapped Cap are Panasonic FC + the 2 red elna cerafine. I don't trust the asian cap.
+ 2 Mit for C1.


[/quote]

er... you don't trust Asian caps? care to explain that a bit more? I've never heard anyone say that nichicon etc... are inferior, in fact quite the opposite :?: not to mention, where do  you think the panasonic come from?