ODS Relay question for y'all...

[v00d00blues79]

I'm wiring up my ODS chassis from Funk and instead of a mid-boost I wired up a Deep switch. Now I'm having a bit of trouble deciphering how to wire up the tone switch relay. Does anyone have any close ups or perhaps a layout drawing that they could share?

Thanks!

Andy

[brownnote]

going from memory here, but I'm 99% this is correct

bass pot wiper goes to relay COM 1 (22M resistor goes across COM 1 & NC 1)
treble pot bottom (ground) goes to relay COM 2
NC 1 goes to Deep switch COM 1 ("right side")
NC 2 goes to deep switch COM 2 ('left side"...same lug where the 22M resistor goes to bottom of treble)

excuse the sloppy drawing

[img2340]http://www.brownnote.net/shared/images/deep.jpg[/img]

[v00d00blues79]

Sweet! Thanks Moss!

Andy

[ic-racer]

I have my DEEP hooked up like this, each end coming right off the center of the bass and volume pots.

I have not read that many posts of impressions of the DEEP switch, so I though I would contribute one. To me it gives the clean channel the feel of a Fender Blackface amp. I'm glad I installed it.

Files you may or may not have seen:

First file shows how the DEEP switch is really independent of all other hookups.
Second file is the Overtone layout showing a tested, working PAB hookup
Third file show a schematic with both a PAB relay and deep switch.

[brownnote]

I'm glad you posted that, because I realized what I drew is the rock/jazz & PAB wiring...the deep switch really doesn't affect the PAB wiring. I've only built a metric ton of these with rock/jazz, deep & mid boost...doh!

You can see there's more than one way you can lay out the deep switch...I put the rock/jazz, deep & bright switches on the front panel Dumble style because it lays out very cleanly that way as you can see from the schematic (with the deep between the rock/jazz & bright switches).

However you lay it out, as ic-racer said, the deep is independent of the rock/jazz PAB wiring even though it ties into the rock/jazz switch with the 270K, it's just a clean way to access the top of the bass pot.

[ic-racer]

...I put the rock/jazz, deep & bright switches on the front panel Dumble style because it lays out very cleanly that way as you can see from the schematic (with the deep between the rock/jazz & bright switches).

Since we are discussing this, I checked my stash of real innards pictures I and they ALL show a mid-boost. In terms of duplicating Dumble style hookup, I suspect the components would hang off the switches and the 10k would hook up to the buss bar? Maybe someone has a picture of the real thing in their collection they could post?

[ayan]

Since we are discussing this, I checked my stash of real innards pictures I and they ALL show a mid-boost. In terms of duplicating Dumble style hookup, I suspect the components would hang off the switches and the 10k would hook up to the buss bar? Maybe someone has a picture of the real thing in their collection they could post?

I am not entirely comfortable posting a picture of the real thing with the Deep switch since all I have came with the disclaimer "Do not share." However, here is a picture of one of my amps that has the Deep switch.

Cheers,

Gil

[benoit]

Since we are discussing this, I checked my stash of real innards pictures I and they ALL show a mid-boost. In terms of duplicating Dumble style hookup, I suspect the components would hang off the switches and the 10k would hook up to the buss bar? Maybe someone has a picture of the real thing in their collection they could post?

I am not entirely comfortable posting a picture of the real thing with the Deep switch since all I have came with the disclaimer "Do not share." However, here is a picture of one of my amps that has the Deep switch.

Cheers,

Gil

In that pic it looks like you've got relay sockets. If so where'd you get 'em?

Ben

[ayan]

In that pic it looks like you've got relay sockets. If so where'd you get 'em?

Ben

Yes, I use sockets for the relays in all my amps. You can get them basically anywhere. I use 16 pin ones from Mouser:

16-pin Sockets Gold 575-113316

I clip off the unused pins, so from left to right: keep the 1st column, clip the next two, keep the 4th, clip next, keep 6th, clip next, keep 8th.

Gil

[tonelab2]

1+ on sockets
Small cable ties help keep relays in sockets if you worry about them working loose while transporting.

[Luthierwnc]

I stick them down with a blob of silicone (after spark testing). sh

[ic-racer]

However, here is a picture of one of my amps that has the Deep switch.

Cheers,

Gil

Excellent, but I see that the 1977 schematic shows it different. In the 1977 schematic, the one arm of the DEEP comes off the other side of the PAB relay.

I know the 1977 schematic has been supersceded by the ODS101 schematic. So....if I were to have Jazz/Rock and DEEP in the 101 schematic I would want to do it the way you showed, right?

[ayan]

Excellent, but I see that the 1977 schematic shows it different. In the 1977 schematic, the one arm of the DEEP comes off the other side of the PAB relay.

I am confused: from the picture I posted, how can you infer where on the relay board I tap from? Not shown in the details.

Let me describe the switch as follows. The deep switch ensemble meshes with the rest of the circuit via two 270K resistors. One is connected to the wiper of the volume pot, and the other the POLE of the Jazz/Rock switch that does NOT have the .005uF cap connected to it.

I believe I have seen implementations of the the Deep Switch, either in clones or schematics, where the thing is connected differently. The amps I copied make the connections as described above. Note that the J/R switch is a DPDT device, so maybe you're used to seeing it connected using a mirror image arrangement. If that is the case, there is no change to the funcionality, just that you hang the .05uF cap on the left vs right side of the switch.

Cheers,

Gil

[ayan]

Excellent, but I see that the 1977 schematic shows it different. In the 1977 schematic, the one arm of the DEEP comes off the other side of the PAB relay.

I am confused: from the picture I posted, how can you infer where on the relay board I tap from? Not shown in the details.

Let me describe the switch as follows. The deep switch ensemble meshes with the rest of the circuit via two 270K resistors. One is connected to the wiper of the volume pot, and the other the POLE of the Jazz/Rock switch that does NOT have the .005uF cap connected to it.

I believe I have seen implementations of the the Deep Switch, either in clones or schematics, where the thing is connected differently. The amps I copied make the connections as described above. Note that the J/R switch is a DPDT device, so maybe you're used to seeing it connected using a mirror image arrangement. If that is the case, there is no change to the funcionality, just that you hang the .05uF cap on the left vs right side of the switch.

Cheers,

Gil

[ic-racer]

I am confused: from the picture I posted, how can you infer where on the relay board I tap from? Not shown in the details.

I figured it was a NON-HRM, where the J/R is (always??) wired to a 'switching' contact on the PAB relay.

So, it looks like, in yours (Dumble's?), the DEEP would go away (along with JAZZ/ROCK) when in PAB and in the (possibly incorrect) 1977 schematic, the DEEP stays when in PAB, right?