Lindley Tone-Homing In on #8

[Max]

Max,
thanks alot for the information. Two more question if you don't mind:
On Rob' page there are two ODR "Dumble unknown 5" and "Dumble unknown 10" that seem to be of the same generation.
"10" was part of the batch shipped to germany in 1979/1980 and was my brother's amp. Those amps should be 2nd generation right ?
From the layout of #13 it seems to me that the filter caps are placed outside the chassis. Am I correct ?

Thanks again.

Yes, "unknown 5" and "unknown 10" are both second generation ODR. All second generation ODS I know (including ODR) have the filter caps inside the chassis.

First generation ODS:
Filter caps outside, like Fender amps, because the chassis is smaller and rectifier and FET circuits are not placed at the walls of the first generation amps and therefore additional space is needed where in the second generation and all later generations ODS amps the filter caps are placed.

BTW: Do you know, if your brother's ODR ("unknown 10") is 50W or 100W?

Have a fine day

Max

[Structo]

When did the ODS go from silverface to blackface?

Also, I notice on the blackface amps, there is a period when the "by Dumble" is in a gold font with the rest in white.

Then later all the labeling is in all white against the black panels.

Are these the different generations you speak of?

[Runaway J]

Thanks Max,

"unknown 10" is a 50W.
Brother had it converted to a flightcase-like combo with one of the two 12" Altec 417 8H SII
that were in the 212 cab before he sold it around '86 afaik.
I'd love to know where the amp ended up.

Cheers,
Jürgen

[David Root]

Double Post

[dr. who]

Which ODRs had the reverb after the OD? I know of the two 150w. Any others? Does anyone have clips of the two different types that they could link to?

[David Root]

Runawayj, thank you for your input. Historical info is the key!

[Max]

Which ODRs had the reverb after the OD?

As far as I know:

All after second generation ODS/ODR.

Example for a "second generation ODR":

http://www.roblivesey.com/dumble/ "unknown 5"

Max

[Max]

When did the ODS go from silverface to blackface?

Also, I notice on the blackface amps, there is a period when the "by Dumble" is in a gold font with the rest in white.

Then later all the labeling is in all white against the black panels.

Are these the different generations you speak of?

ODS generations (50/100W) as far as I remember now. Please correct if you know something different or not in accord. All pics from this website:

http://www.roblivesey.com/dumble/

0. "Pre series production prototypes"
without an ODS series # and 3-step OD switch - like "Dumble Overdrive Deluxe"

1. generation ODS
like #1, #2, #4, #8, pic of #1: in the middle of the first pic in "blave"

There is no 1. generation ODR as far as I know

2. generation ODS
like #19 up to #55 on Rob's site

2. generation ODR
like "Dumble #unknown 5"

3. generation ODS
like "Dumble # 006x" (non-original cabinet and non-original chicken heads) or the "blue suede silver face" in "blave" (Accent switch changed by HAD into presence pot) or "Dumble #unknown 6" (non-original cabinet)

3. generation ODR
like "Dumble #0057 - Santana" (Some later mods by HAD)

"Transition silverface amps" (starting around '79/'80) and with most specs already more or less very close to the first "blackface" amps (snubbers, ratio, trigger trim pot, "classic" tonestack etc.) and some others specs still a bit similar to 3. generation.
Example for "Transition silverface amps": "Dumble #0075"

"Transition blackface amps" (starting around '81/'82) already very similar to 4. generation amps but some still with an "Accent" switch, some already with a small "Presence" pot, like "Dumble #0084", "Dumble #0094"

4. generation ODS (classic)
like "Dumble #0097" or " Dumble #0099"

5. generation ODS like "Dumble #0144" or "Dumble #0147" (different script but still "deep"-switch, most (some, all?) 3-piece chassis)

6. generation ODS like "Dumble #0176" or "Dumble #0184" (mid switch - most (all?) 3 piece chassis, some "Bluesmaster")

7. generation ODS like "Dumble #unknown", "Dumble #unknown 2", "Dumble #unknown 3", "Dumble #unknown 4" or "Dumble #0234" (4, 8, 16 OHM OT, EL34, most (all?) HRM, most (all?) one piece chassis.

All ODR I know are silverface and look as 2. or 3. generation but newer ones, like those custom built or updated some years ago for Santana e. g., of course may not have "2./3. generation ODR" circuits.

Cheers

Max

[bluesfendermanblues]

Impressive knowledge, Max.

[Steven_nl]

Maybe this is old for you guys but then again.....

http://www.youtube.com/watch?v=INRX0iO8boo

[David Root]

Thank you very much again Max!

[Max]

Thanks Max,

"unknown 10" is a 50W.
Brother had it converted to a flightcase-like combo with one of the two 12" Altec 417 8H SII
that were in the 212 cab before he sold it around '86 afaik.
I'd love to know where the amp ended up.

Cheers,
Jürgen

Thanks Jürgen!

I've heard about this amp before (some years ago) but I don't know where it is right now. If you know the series# (PM if you want to keep this private) I could let you know when it reappears.

All the best

Max

[Max]

ODS/ODR generations:

Of course it is important to keep in mind, that many amps have been "updated" to "later" specs at some point, some even several times.

And all are "custom made" anyway and will be special in some details.

So these "generations" can only be useful as a rough guideline in regard of cosmetics and more general circuit- and parts-specs.

Have fun

Max

[talbany]

Max

This thread's keeping you busy I know but if you would.. Can you elaborate a bit more on the sonic qualities and which you prefer of the different reverb topology's (Before and after OD) within the different generation ODR's..
Have you played both generations personal prefrences etc....
Before I jump out a window I would like to build an ODR for myself and leave it to my kids who will eventually have it gutted and converted to a Mesa Boogie Dual Rec as much as my inheritance will allow..LOL!!Thanks again!!

Tony

[Structo]

I was just hoping that the faceplate differences were indicative of the internal changes.

So it went from silverface to blackface.
There seems to be two different blackface styles with the "By Dumble" being in gold first then later in white.

But apparently he had a lot of transitions that don't really follow a logical progression.