ODSR #13 Hand drawn layout by H.A.D
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ODSR #13 Hand drawn layout by H.A.D
So I've been going through some old drives lately and bumped into this and think it's time to share it.
#13 is a 2nd generation ODSR and one of the 1'st ever built. It has the pre OD Reverb.
The values are a little hard to read? however if someone wants to take a stab at doing a schematic that would be very cool..
Good Luck!
Tony
#13 is a 2nd generation ODSR and one of the 1'st ever built. It has the pre OD Reverb.
The values are a little hard to read? however if someone wants to take a stab at doing a schematic that would be very cool..
Good Luck!
Tony
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Last edited by talbany on Thu Mar 18, 2021 11:34 pm, edited 1 time in total.
" The psychics on my bench is the same as Dumble'"
Re: ODSR #13 Hand drawn layout by H.A.D
Tony, I think this has passed several times here;
https://ampgarage.com/forum/viewtopic.php?f=5&t=407
https://ampgarage.com/forum/viewtopic.php?f=4&t=22855
Best,
Erwin
https://ampgarage.com/forum/viewtopic.php?f=5&t=407
https://ampgarage.com/forum/viewtopic.php?f=4&t=22855
Best,
Erwin
Re: ODSR #13 Hand drawn layout by H.A.D
Good..Glad it was eventually shared..I had it sent to me in a PM.erwin_ve wrote: ↑Thu Mar 18, 2021 11:41 am Tony, I think this has passed several times here;
https://ampgarage.com/forum/viewtopic.php?f=5&t=407
https://ampgarage.com/forum/viewtopic.php?f=4&t=22855
Best,
Erwin
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)
BTW. This is the 1st time I've seen a gut shot?
Tony
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" The psychics on my bench is the same as Dumble'"
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Re: ODSR #13 Hand drawn layout by H.A.D
Wow super interesting Tony! Do you have a better resolution? I would spend time doing the schematic and/or layout, but my poor sight with this little resolution won't help much.
Cheers,
Fred.
Cheers,
Fred.
Re: ODSR #13 Hand drawn layout by H.A.D
In the 2nd link there are some gut shots too.talbany wrote: ↑Thu Mar 18, 2021 11:52 amGood..Glad it was eventually shared..I had it sent to me in a PM.erwin_ve wrote: ↑Thu Mar 18, 2021 11:41 am Tony, I think this has passed several times here;
https://ampgarage.com/forum/viewtopic.php?f=5&t=407
https://ampgarage.com/forum/viewtopic.php?f=4&t=22855
Best,
Erwin![]()
BTW. This is the 1st time I've seen a gut shot?
Tony
Interesting amp.
I might do a chassis/pcb run with this amp. Chassis wise the difference with a Sss is mainly the preamp tube holes.
Erwin
Re: ODSR #13 Hand drawn layout by H.A.D
Check the links: schematic and layout are there.fred.violleau wrote: ↑Thu Mar 18, 2021 12:24 pm Wow super interesting Tony! Do you have a better resolution? I would spend time doing the schematic and/or layout, but my poor sight with this little resolution won't help much.
Cheers,
Fred.
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Re: ODSR #13 Hand drawn layout by H.A.D
forgive me for questioning the great HAD but.......reverb BEFORE the OD!!! really?
what's with that?
M
what's with that?
M
Re: ODSR #13 Hand drawn layout by H.A.D
Try this one
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" The psychics on my bench is the same as Dumble'"
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Re: ODSR #13 Hand drawn layout by H.A.D
Marcus; 1976!norburybrook wrote: ↑Thu Mar 18, 2021 2:47 pm forgive me for questioning the great HAD but.......reverb BEFORE the OD!!! really?
what's with that?
M
Re: ODSR #13 Hand drawn layout by H.A.D
Marcusnorburybrook wrote: ↑Thu Mar 18, 2021 2:47 pm forgive me for questioning the great HAD but.......reverb BEFORE the OD!!! really?
what's with that?
M
if there is 1 common thread that runs through all of Dumbles amps that have reverb (including SSS's)
It was how he integrated them into his circuits
![Confused :?](./images/smilies/icon_confused.gif)
BTW.The Tweed mixer in SSS #002 was the closest he got..IMO
Let the "Fender" flames fly! I am ready..
![Laughing :lol:](./images/smilies/icon_lol.gif)
Tony
" The psychics on my bench is the same as Dumble'"
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Re: ODSR #13 Hand drawn layout by H.A.D
It would be fun and useful to have Clean, OD, and reverb all in one amp. Isn't this the premise of the Two Rock Bloomfield Drive? But yes, it fundamentally changes the sound. I think Roots has built his take on the ODR/Bloomfield idea (?) or certainly modeled it. My solution is to run 102 as my core sound; dry, no effects. My wet amp will be a JM100 with lush reverb. Why have one amp, when you can run two in stereo at twice the price? But that eliminates the OD-ruining reverb pedal in front of 102 (when you want to use the 102 OD section). And who doesn't like more amps and stereo?talbany wrote: ↑Thu Mar 18, 2021 6:43 pm if there is 1 common thread that runs through all of Dumbles amps that have reverb (including SSS's)
It was how he integrated them into his circuits..Sitting in the cheap seats it wouldn't be a stretch to assume that he was either struggling or experimenting with different methods that he was happy with?..IMO there is no perfect way to implement it without drastically altering the sound of the amplifier (especially a 2 channel with overdrive)
BTW.The Tweed mixer in SSS #002 was the closest he got..IMO
Let the "Fender" flames fly!![]()
Tony
Re: ODSR #13 Hand drawn layout by H.A.D
This one is not bad? Two Rock Custom ReverbColossal wrote: ↑Thu Mar 18, 2021 7:16 pmIt would be fun and useful to have Clean, OD, and reverb all in one amp. Isn't this the premise of the Two Rock Bloomfield Drive? But yes, it fundamentally changes the sound. I think Roots has built his take on the ODR/Bloomfield idea (?) or certainly modeled it. My solution is to run 102 as my core sound; dry, no effects. My wet amp will be a JM100 with lush reverb. Why have one amp, when you can run two in stereo at twice the price? But that eliminates the OD-ruining reverb pedal in front of 102 (when you want to use the 102 OD section). And who doesn't like more amps and stereo?talbany wrote: ↑Thu Mar 18, 2021 6:43 pm if there is 1 common thread that runs through all of Dumbles amps that have reverb (including SSS's)
It was how he integrated them into his circuits..Sitting in the cheap seats it wouldn't be a stretch to assume that he was either struggling or experimenting with different methods that he was happy with?..IMO there is no perfect way to implement it without drastically altering the sound of the amplifier (especially a 2 channel with overdrive)
BTW.The Tweed mixer in SSS #002 was the closest he got..IMO
Let the "Fender" flames fly!![]()
Tony
Tony
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" The psychics on my bench is the same as Dumble'"
Re: ODSR #13 Hand drawn layout by H.A.D
Looks like its already been successfully drawn as a schematic, but if anyone is interested in the hand drawn version, I put Photoshop to work on making it appear a bit more like it probably was when it was created. Some scaling, contrast adjustment and sharpening.
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Phil
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Re: ODSR #13 Hand drawn layout by H.A.D
norburybrook wrote: ↑Thu Mar 18, 2021 2:47 pm forgive me for questioning the great HAD but.......reverb BEFORE the OD!!! really?
what's with that?
M
high-grade government lattice
https://youtu.be/iVTj08qTwGw?t=20
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: ODSR #13 Hand drawn layout by H.A.D
Can you post that please.Looks like its already been successfully drawn as a schematic
Thanks
Tony
" The psychics on my bench is the same as Dumble'"