Pix with the new Top Plate board

a 3W single ended EL84 amp for home, work & school

Pix with the new Top Plate board

Postby Shannon Parks » Sat Sep 08, 2012 1:20 pm

I'm happy with how the top plates came out. Sorry for the overly contrasty pix. I'll try and get a nice in situ shot tonight. [:)

Shannon

Image

Image

Image
Last edited by Shannon Parks on Sun Sep 09, 2012 5:24 am, edited 1 time in total.
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Postby Geek » Sat Sep 08, 2012 4:24 pm

Wow! That's flippin' gorgeous! (love)
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Postby TerrySmith » Sun Sep 09, 2012 6:39 am

I agree, that's beautiful! The bottom is just a standard Hammond box flipped upside down?
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Postby Shannon Parks » Sun Sep 09, 2012 6:50 am

Right, Terry. It uses the 10x6x2 black one, part# 1441-16BK3CWW. You can even skip the walnut end pieces and get a cheapo 1441 chassis without the walnut for around $12 and drop it into a simple wood picture frame. Obviously you can skip the wood altogether.

You attach the top plate to the chassis with four #6 1/2" sheet metal screws, and then tap center holes for the other four holes with a nail and hammer. You can then drill out those four holes (after removing the top plate) with a standard 3/8" corded drill. The only other machining is two more screw holes for the choke in the bottom of the chassis. Otherwise I've tried to make it as simple as DIY can get.

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Postby soundbrigade » Sun Sep 09, 2012 7:08 am

Nice stuff, really!
The transformers look cool and pretty small. Where are those coming from?
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Postby Shannon Parks » Sun Sep 09, 2012 7:16 am

Those are Edcors - I repainted the bells with some black spray paint. I had flat black handy at the time, but I think satin would be nicer. It's configured for the Edcor XPWR136-120 for the power transformer and two Edcor GXSE10-8-5K as the outputs. Those are just under $100 shipped.

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Last edited by Shannon Parks on Mon Sep 17, 2012 8:09 am, edited 1 time in total.
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Postby fatuncle » Sun Sep 09, 2012 11:59 am

Shannon it looks GREAT! I am excited, I plan on making this my 1s build. How soon can I order the board?
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Postby Shannon Parks » Sun Sep 09, 2012 3:15 pm

I had intended to start selling this weekend, but it looks like I need one more week to get all the BOMs sorted out. I'm double-checking all the screw lengths, parts lists, schematics, etc. Always takes much longer than I plan.

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Postby EWBrown » Sun Sep 16, 2012 7:52 pm

It's configured for the Edcor XPWR128-120 for the power transformer and two Edcor GXSE10-8-5K as the outputs. Those are just under $100 shipped.


That probably should be Edcor XPWR136-120,and not XPWR128-120, for the power trannie.

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Re: Pix with the new Top Plate board

Postby audioray » Wed Jul 23, 2014 11:06 am

what is the size of top plate budgie. new and old im doing my own case.
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Re: Pix with the new Top Plate board

Postby Shannon Parks » Wed Jul 23, 2014 11:56 am

audioray wrote:what is the size of top plate budgie. new and old im doing my own case.


Hi Ray,

The old top plate was 9.90" by 5.90" with square corners. The new top plate will be 10.827" by 6.89" with rounded corners.

If it makes it easier, I do have a couple old style top plates that I had planned to build into units, but now will scuttle because of the new design. Maybe I should just ship one of those to you (with the main pcb)? I already have a few connectors mounted (speaker binding posts, RCAs and power switch) - I'll throw those in for free. ;) If that sounds good, I can mail it all out tomorrow.

I can even sell you a set of the Edcors, too.

Shannon
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Re: Pix with the new Top Plate board

Postby audioray » Wed Jul 23, 2014 1:51 pm

hi shannon. the old boards will work for me. how much for edacors.im maxed out this month maybe' it depens on the cost.
so far i did 2 eiclone /2 st35 . i do head phones a lot. check out seenheiser 558 better than my senn. 650. just turn 73 but having fun.
thanks alot
audioray@hotmail.com
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Re: Pix with the new Top Plate board

Postby audioray » Fri Oct 17, 2014 4:31 pm

hi shannon
would you have a xtra set of trans. u want to get rid of.i took a set of photos i need my son to upload them.
thanks again
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Re: Pix with the new Top Plate board

Postby Shannon Parks » Sat Oct 18, 2014 7:28 am

audioray wrote:hi shannon
would you have a xtra set of trans. u want to get rid of.i took a set of photos i need my son to upload them.
thanks again


Thanks for asking, Ray, but I don't at this time. Better get that Edcor order in before the Xmas rush! ;)

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Re: Pix with the new Top Plate board

Postby lego4040 » Mon Oct 20, 2014 1:04 pm

My Budgie board should be in my mailbox when I get home (y) My question with your top plate is you have the PT and OT's winding in same orientation, shouldnt they be rotated?
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