Skip to content
View in the app

A better way to browse. Learn more.

www.Head-Case.org

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

i'm on a roll... the kgsshv

Featured Replies

  • Replies 5.4k
  • Views 1.2m
  • Created
  • Last Reply

Top Posters In This Topic

Most Popular Posts

  • After 5 years from the time I acquired the PCBs and parts, I finally took advantage of the free time created by the pandemic and completed my KGSSHV.  This is the offboard version with +/-500V supply.

  • Not sure if we have a KGSS thread but I'll just post this here.  So last year it dawned on me that I built my first KGSS amp 15 years ago and something had to be done to celebrate that.  It started of

Posted Images

There seem to be good news happening all around! I would be interested in a board set. :)

In the UK Farnell stock them (at least if we're talking Aavid 6300BG), their part number 1213471 at

I'd love a board set also. Can't wait to compare it to the BH. :)

That price is twice as expansive as the one at digikey...

Yes - because the part is made in the US, then has to travel several thousand miles to get to Farnell. So I can either buy at half the price from Digikey, then pay shipping to the UK plus tax, then wait a week for them to arrive, and then drive 40 miles round trip to collect from Parcel Force to pay the tax. Alternatively I can get them the next day from Farnell, cheaper in overall terms (no 40 mile round trip etc etc).

The only place that really has international trade sorted out is Mouser. They have arranged with UK customs to charge tax in advance, then offer free shipping for orders over $100. On a big project, peppered with Dale resistors and other fancy stuff, I can order on line and the damned stuff arrives from the US through my mail box two days later. Digikey has something to learn.

Alternatively you could move to the US, where there's actually enough space for people to live.

I'm in like Flynn. Or just in. For a board set.

Kevin I would love to buy a set of boards and whatever but ... I would need a member who would be willing to build this beast for me? Any chance one of you talented guys/gals would be willing to do so. If you are could the amp be completed by mid December? I know I am asking a lot but I would not trust myself to build this monster. Thanks and please shoot me a PM to further discuss cost and schedule. Thanks.

Alternatively you could move to the US, where there's actually enough space for people to live.

Nah - I couldn't cope with imperial measurements on a day to day basis ;D

eerrrrr, cuse me......what bout the rest of the components? arent we suppose to hv something like BOM? sorry as I'm not a diy-er but dying to upgrade from my kgss

Nah - I couldn't cope with imperial measurements on a day to day basis ;D

Not to mention their temperature is in Fahrenheit. =.='' Come to Canada instead. :cool:

I could deal with Canada but not the US...

As for a BOM, it will come in due time.

Not to mention their temperature is in Fahrenheit. =.='' Come to Canada instead. :cool:

Massively off-topic, but.....

A branch of my family did just that, in 1921. Looking forward to a life in the coal mines of North East England, Adam McKinght uprooted his family (wife and two children) and off they went to Vancouver. And there that branch of the family live to this day. Actually 80 years previously to that, his grandparents escaped from Ireland just at the start of the potato famine in the 1840's, and found their way to the NE to become coal miners.

Given these traumatic events, I'm sure they ended up with a much better life (Adam McKnight opened a general store in Nanaimo; better for sure than hewing coal).

And yes - I got heavily into family history a few years ago.

CMIIW, i should follow kevin and the rest of the pack to buy the board first then sit pretty wait for the BOM to come out ?

The amp board looks good as well.

R8 and R9 don't jive by 100.

R48 1000 on schem?

Edited by digger945

CMIIW, i should follow kevin and the rest of the pack to buy the board first then sit pretty wait for the BOM to come out ?

There are some versions of the BOM lurking earlier in the thread. But I'm a relative newcomer to this electrocution-grade amp thread - I've been concentrating on KG's ultimate madness - the T2. Just got the power supply board and three transformers mounted in the power supply chassis. Without the front and top it is nearly a hernia lift - it is Krell-like mass, must be 30lbs+. And then there is the amp....

That animal operates from +500 to -560V rails, plus others at 250V, -260V, +/-12V. I'm really taking my time and doing the build with real electrical best practice - there is just no room for error, or getting a finger in the wrong place.

But somewhere not too distant down the line, I'd like to have the option of building the KGSSHV - hence the request for a board set. I has just got to be cheaper and easier than the T2, which runs to several thousand of whatever currency takes your fancy, and more construction hours than a sane man can safely contemplate.

thanks Craig but I'm afraid the earlier BOM is just partial and incomplete making a blind guy like me - in DIY even more confused. anyway, count me in for the board. worry about the rest later. Worst comes to worst I just frame it and hung it to my wall if I cannot complete it

There isn't much to the BOM to be honest. All the resistors will be the 1/2W Xicon units we used for the T2 (the Vishay RN60's are only rated for 300V) but you can also use the 1/2W PRP's and other resistors designed for use in tube amps (i.e. with high voltage handling). The values for everything are on the board as well.

There are still some things that have to be ironed out like for instance who will handle the distribution of the boards (probably me) and are we going to include any parts with the boards. Not everything can be bought from Mouser so are we going to include those parts in some kind of a kit.

RN60 will derate to values suitable for this

Edit: which resistors are you worried about getting even close to this limit?

If lurkers are eligible, I'd love a boardset and whatever stuff gets offered as a package with it.

If 2SA1968 are sourced and available for anything close to $.70 ea, I will commit to buying couple hundred extra to bump up the volume discount.

Back under my rock now ....

If lurkers are eligible, I'd love a boardset and whatever stuff gets offered as a package with it.

If 2SA1968 are sourced and available for anything close to $.70 ea, I will commit to buying couple hundred extra to bump up the volume discount.

Back under my rock now ....

I could use a triple fist full of those myself!

Me too, thanks Kevin. Any idea what the approximate total cost might be (minus the chassis)?

I'm in for a board set if I may, thanks Kevin.

in for a set of boards necessary for the amp as well. if anything in the way of a kit of parts is assembled, i will provide 10 soj and 3 goats to the assembler/provider of said kit. many thanks will be added and a few beers perhaps (limited to 10 beers though...i know how some of you guys drink :P )

Put me down for 2 sets of boards, and 2 kits of parts.

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Important Information

By using this site, you agree to our Terms of Use.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.