First ODS type build

Overdrive Special, Steel String Singer, Dumbleland, Odyssey, Winterland, etc. -
Members Only

Moderators: pompeiisneaks, Colossal

T Wilcox
Posts: 365
Joined: Fri Feb 11, 2011 1:52 pm
Location: Sacramento, CA

Re: First ODS type build

Post by T Wilcox »

ChrisM wrote:A normal build AcousticMirror, like this one?

[img:1023:682]http://i625.photobucket.com/albums/tt33 ... G_2840.jpg[/img]
Where did this pic come from ChrisM
I just realized its not from Diagrammatiks.

I saw the power light on and thought WOW no smoke? no flames?
Did that amp actually work or was that just some kinda joke?

Todd
User avatar
SoundPerf
Posts: 218
Joined: Fri Feb 04, 2011 3:33 am
Location: York, PA USA

Re: First ODS type build

Post by SoundPerf »

Structo wrote:Looks like a fire trap to me.
Well, that too.

Sometimes in my crazy little daydreams I picture a post-apocalytic world where it will be up to us guys to take what little resources are left and help rebuild. This guy might just be the guy to have on our side. 8)
Chris
User avatar
SoundPerf
Posts: 218
Joined: Fri Feb 04, 2011 3:33 am
Location: York, PA USA

Re: First ODS type build

Post by SoundPerf »

For those familiar with term "rats nest" when using PCB CAD software it makes more sense. It's missing the part where you place components in a methodical way to make both efficient and theoretical sense.

But who knows, It could all be a joke! :?
Chris
User avatar
ChrisM
Posts: 1169
Joined: Wed Oct 22, 2008 11:12 pm
Location: Toronto, Canada.

Re: First ODS type build

Post by ChrisM »

T Wilcox wrote:
ChrisM wrote:A normal build AcousticMirror, like this one?

[img:1023:682]http://i625.photobucket.com/albums/tt33 ... G_2840.jpg[/img]
Where did this pic come from ChrisM
I just realized its not from Diagrammatiks.

I saw the power light on and thought WOW no smoke? no flames?
Did that amp actually work or was that just some kinda joke?

Todd
This is the TS amp. He posted it on another forum I frequent.

Not mine!!!
T Wilcox
Posts: 365
Joined: Fri Feb 11, 2011 1:52 pm
Location: Sacramento, CA

Re: First ODS type build

Post by T Wilcox »

WOW bet that thread got a lot of comments
It's amazing what you can do if you have enough electrical tape :lol:

Todd
diagrammatiks
Posts: 558
Joined: Sun Mar 27, 2011 12:28 am

Re: First ODS type build

Post by diagrammatiks »

that first amp I built is at my parents place. built it on vacation last summer.

all I had was my laptop mic to record with for what it's worth.

4 el84s, no negative feedback, cathode biased, 5 stages into a long tail pair.

clean after 2 stages

http://dl.dropbox.com/u/7394209/clean2s.mp3

hi gain 5 stage

http://dl.dropbox.com/u/7394209/brootzlootz.mp3

I really don't understand what's so confusing though. Why wouldn't it work?
I don't think electricity cares which way it's pointed? I mean is there some sort of problem where sparks just fly out of leads?

:shrug:
SoundPerf wrote:For those familiar with term "rats nest" when using PCB CAD software it makes more sense. It's missing the part where you place components in a methodical way to make both efficient and theoretical sense.

But who knows, It could all be a joke! :?
please enlighten me what these rules for efficient and theoretical sense are?
User avatar
Structo
Posts: 15446
Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon

Re: First ODS type build

Post by Structo »

Hey, it's OK, you're young and have things to learn.

I just have a problem with someone new to a forum coming in and act like they are a pro builder then show us something like that.

Although it does somewhat look like a Bruno prototype. :D

Be it ever so humble....

You will find people are a lot more willing to help you if you drop the pretense and ask questions rather than acting like you know it all. :wink:
Tom

Don't let that smoke out!
User avatar
SoundPerf
Posts: 218
Joined: Fri Feb 04, 2011 3:33 am
Location: York, PA USA

Re: First ODS type build

Post by SoundPerf »

please enlighten me what these rules for efficient and theoretical sense are?
It could be something as simple as not placing a critical component that is heat sensitive close to a component that produces large amounts of heat. Just because a component is next to another on a schematic does't mean it should be placed that way in real life.
I mean is there some sort of problem where sparks just fly out of leads?
Well yes there is. In the US and I suspect everywhere else in the world by now, electronic products go through a process called HiPot testing. This is to see at what voltage breakdown will occur and arcing happens. Things are designed in such a way to avoid this, but there's a limit.
Chris
diagrammatiks
Posts: 558
Joined: Sun Mar 27, 2011 12:28 am

Re: First ODS type build

Post by diagrammatiks »

Structo wrote:Hey, it's OK, you're young and have things to learn.

I just have a problem with someone new to a forum coming in and act like they are a pro builder then show us something like that.

Although it does somewhat look like a Bruno prototype. :D

Be it ever so humble....

You will find people are a lot more willing to help you if you drop the pretense and ask questions rather than acting like you know it all. :wink:
I'll let you know when I have a question.

Acting like a pro builder? I don't think I've ever given off that impression.
SoundPerf wrote:
please enlighten me what these rules for efficient and theoretical sense are?
It could be something as simple as not placing a critical component that is heat sensitive close to a component that produces large amounts of heat. Just because a component is next to another on a schematic does't mean it should be placed that way in real life.
I mean is there some sort of problem where sparks just fly out of leads?
Well yes there is. In the US and I suspect everywhere else in the world by now, electronic products go through a process called HiPot testing. This is to see at what voltage breakdown will occur and arcing happens. Things are designed in such a way to avoid this, but there's a limit.
True enough I wouldn't gig with that first amp I built. However, there is tons of space in that chassis. If arcing was going to occur to the degree that you're worried about pcb's and turrets boards would be far more at risk. It's not that big of a concern though. If the part is working within spec sparks aren't going to fly.

That's not to say I haven't made sparks fly. But those are generally the types of things that after it happens the first time you put up a little warning sign on your work space...did you put in the electrolytics the right way? is there a set of pliers across your heater rails?
CHIP
Posts: 760
Joined: Sat Jan 05, 2008 4:35 am
Location: Down by the river

Re: First ODS type build

Post by CHIP »

Who was the big time builder who modded the original amp into an ODS?

Also, Is this amp you're building a dumble type amp?
andyhardy
Posts: 195
Joined: Sat Nov 07, 2009 4:23 am
Location: Ontario, Canada

Re: First ODS type build

Post by andyhardy »

Tag2
diagrammatiks
Posts: 558
Joined: Sun Mar 27, 2011 12:28 am

Re: First ODS type build

Post by diagrammatiks »

CHIP wrote:Who was the big time builder who modded the original amp into an ODS?

Also, Is this amp you're building a dumble type amp?
It's almost the exact circuit that was in this amp before. just adding a tube reverb driver/recovery stage.
CHIP
Posts: 760
Joined: Sat Jan 05, 2008 4:35 am
Location: Down by the river

Re: First ODS type build

Post by CHIP »

Who was the builder?
diagrammatiks
Posts: 558
Joined: Sun Mar 27, 2011 12:28 am

Re: First ODS type build

Post by diagrammatiks »

CHIP wrote:Who was the builder?
guys gotta have some secrets. i think structo figured it out.
User avatar
dreric
Posts: 964
Joined: Mon Dec 01, 2008 3:15 pm
Location: SF East Bay

Re: First ODS type build

Post by dreric »

andyhardy wrote:Tag2
+1

and a touch of troll.
Post Reply