NOS Thunder 1A Active Circuit Boards

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Post by moose on Sun May 29, 2016 10:35 pm

I have 8 NOS Active circuit boards for sale, open to offers and will post.these came from FCN the UK distributors for Westone when they shut down a few years ago, forgot I had them!! they are new and unused   thunder - NOS Thunder 1A Active Circuit Boards  20160510
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Post by Sgt. Vimes on Mon May 30, 2016 10:59 am

Dibs. I'll defo have one. 
pm incoming.
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Post by Westbone on Mon May 30, 2016 2:10 pm

What is the cost of a board?
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Post by paulski71 on Mon May 30, 2016 5:42 pm

Hi Moose!

Is this the bass version or guitar? or are they the same?
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Post by Westbone on Mon May 30, 2016 6:10 pm

paulski71 wrote:Hi Moose!

Is this the bass version or guitar? or are they the same?
Same. It will work on a bass.
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Post by Sgt. Vimes on Mon May 30, 2016 6:46 pm

Westbone wrote:
paulski71 wrote:Hi Moose!

Is this the bass version or guitar? or are they the same?
Same. It will work on a bass.

So do the active eq and gain use the same circuit and it's just the pots that change the circuits behavior?
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Post by Barry on Mon May 30, 2016 11:08 pm

Wow, super duper, just when you think you've seen just about everything Westone! Christmas comes early. Very Happy

Now, a request...can someone who buys one of these and is savvy in solid state electronics, document this thing so we can update our archive info going forward? A proper schematic would be great but at least detailed photos + a record of the component markings? The value of caps etc would be extremely helpful to those attempting a repair or build from scratch.

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Post by Westbone on Wed Jun 01, 2016 11:33 am

Westbone wrote:What is the cost of a board?
Still awaiting an answer???
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Post by moose on Wed Jun 01, 2016 1:46 pm

Westbone wrote:
Westbone wrote:What is the cost of a board?
Still awaiting an answer???
Sorry I didnt see your question, I'm not sure what to ask for them so have asked for sensible offers 
Cheers
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Post by junkmale on Thu Aug 31, 2017 4:09 pm

Do you have any of these left?
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Post by matsumokukuku on Thu Aug 31, 2017 7:45 pm

Way to go Barry....I concur on what he suggested. It would be great and helpful for that valuable information. Especially the photos.
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Post by Sgt. Vimes on Thu Aug 31, 2017 8:52 pm

junkmale wrote:Do you have any of these left?
 
I've got one that I bought but didn't use in the end, can't remember what I paid for it and the message convo has gone from my inbox, make an offer?
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Post by Barry on Fri Sep 01, 2017 5:55 am

Pete, are you able to help out with my request in post #7 before you sell it?

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Post by Sgt. Vimes on Fri Sep 01, 2017 7:34 am

Barry I wouldn't know where to start mate, schematics are hard enough to understand never mind creating one!
I can take as many photos as needed however but I'm not sure they'll be of much use Smile
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Post by Westbone on Fri Sep 01, 2017 11:49 am

All the component values are marked on each.
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Post by Barry on Fri Sep 01, 2017 6:34 pm

I understand Pete, perhaps I shouldn't use the term "schematic". More like what we have already but in better detail using photos on which we can add labels.

Like Damian said, the values should be either be written on the components or can be determined via the colour bands.

If you can make some detailed photos we should be able to read the values off the photos. Additionally if you can write them down on a rough positional sketch I think we'd have everything needed for future reference. I or someone else can put it all together for the web site.

Cheers!

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Post by Sgt. Vimes on Tue Sep 05, 2017 5:16 am

I'll have a go when I get some time, I've got one of those natty little clip on macro lens jobbies for my phone, that should get some decent shots.
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Post by Barry on Tue Sep 05, 2017 6:16 am

Excellent!
We appreciate it, and, no rush mate, it's just for future reference eh?

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Post by Fitzroy on Tue Sep 05, 2017 9:46 pm

My Thunder 1-A which I have had since new (my very first guitar) just had the active die yesterday. Switch works but no sound when active is turned on. I swapped out the batteries which were pretty fresh but as I feared still no sound when the active is on.

Just found this thread last night and a new board should fix the the issue so let me know if someone still has one for sale. I am located in Texas but also have a relatives in the UK if that is easier to ship to. 

Cheers,

Richard
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Post by Westbone on Wed Sep 06, 2017 12:28 am

Have a look here... cyclops

http://www.westoneguitars.net/fixme/wiring-diagrams/thunder-series—active-models/thunder-active-guitar—trouble-shooting-circuit-version-1/
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Post by Sgt. Vimes on Mon Apr 02, 2018 7:50 pm

Barry wrote:Pete, are you able to help out with my request in post #7 before you sell it?
 Barry I've still not found the time, or if I have I've forgotten (more likely)
How about I send it to you to do the necessary detailing?  and you can send it back whenever, no rush?
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Post by Barry on Mon Apr 02, 2018 9:57 pm

Hey Pete, how are you?
Thanks for "remembering" Razz

I could possibly do it but it's an awfully long round trip eh?
Damian's had lots more experience than I with these things, and would be a better choice to give it the once over. And he's a heck of a lot closer too so less chance for damage to occur in transit.
Would you be able to do the honours Damian? Hello Wave
I'm happy to do any massaging of the images and/or notes after the data collection, and prep it for the web.

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Post by Sgt. Vimes on Mon Apr 02, 2018 10:07 pm

Barry wrote:Hey Pete, how are you?


I'm good thanks, just mad busy with work/family stuff.


Thanks for "remembering" Razz

Thumb Up


I could possibly do it but it's an awfully long round trip eh?
Damian's had lots more experience than I with these things, and would be a better choice to give it the once over. And he's a heck of a lot closer too so less chance for damage to occur in transit.
Would you be able to do the honours Damian? Hello Wave
I'm happy to do any massaging of the images and/or notes after the data collection, and prep it for the web.



I thought Damian already had a spare or two of these?  I may be remembering wrong....that's fine by me.
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Post by Barry on Tue Apr 03, 2018 2:15 am

Damian, if you're unable to, I'll take a stab at it.
Just don't moan if it ain't right! Pirouette

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Post by Westbone on Tue Apr 03, 2018 10:57 am

No problem.

I've plenty 'boards' to hand.

What exactly do you need??
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Post by Barry on Tue Apr 03, 2018 7:29 pm

Sweet! Thanks. I'll leave it up to you matey.

I think a proper schematic is a bit much to ask and a lot of work. Ultimately, all most folks would need is a few clear photos with the components identified so they know what they're dealing with.

It should be obvious to see what is connected to what in the the picture since it's a PC board. We have to assume that anyone referring to the information has an idea of what they're doing.

CLARIFICATION NEEDED
I'm assuming the same circuit is used in all active versions of the Thunder but with different hook up? External connection points are unclear in the current Thunder diagrams. I'm not sure how we sort that.

If you could take a bunch of pix and perhaps do a rough version, nothing too fancy, just numbered labels, I can take your draft and transfer the info to a final version if you like. (Just give me clean versions of the pix along with your marked up one).
e.g. "1"---> (points to a resistor on photo)    Description of #1 - 220Ω (and/or band colours?) etc...

If you'd rather do a final version that's OK too, as I say, up to you how much time you have. I'm happy to finish it up if that works better for you.

Cheers to you both for your help!

p.s. David Blair did a nice job of explaining one of the circuits HERE I think if we follow the same general approach and build on it with larger pictures, especially the underside, we're good.

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Post by Westbone on Tue Apr 03, 2018 10:16 pm

Just looking at your avatar Barry you have a board in your Thunder.

Anyone who intends to make one will obviously be able to read all the values.

This is handy.

https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-resistor-color-code-4-band
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Post by Barry on Tue Apr 03, 2018 11:34 pm

Yeah, actually I have two of 'em, in two Thunders. But I ain't about to disconnect 'em to take pictures!  Mad

Much better if you have an uninstalled one for the pix. Then I can certainly reference my own T's for additional clarification.

Nice resistor calculator reference. Thanks.

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Post by Westbone on Wed Apr 04, 2018 12:58 am

All mine are also in guitars.

You don't need to disconnect them to take photos.
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Post by Barry on Wed Apr 04, 2018 2:28 am

Geez this is getting way too complicated and I'm not looking for a debate or argument. I just thought you'd be the best person to look at this project. If you don't want to do it, no problem.

When you said you had "lots of boards on hand" I took it to mean you had spares. The point of this exercise is to get unencumbered shots of the board itself, not the board in situ.

This is to be a PC board reference for someone trouble shooting or attempting a new build replacement.

It's not a wiring installation. Background clutter, stray wiring, and dubious lighting is not too helpful when you're trying to understand the board's design.

Cheers.

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Post by Westbone on Wed Apr 04, 2018 2:37 am

Two nuts and it's all there and easy to take photos.

Don't complicate things with mentioning wires and the like.

If I find the time I'll take some photos but you have exactly the same as myself. So see no difference.
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