Another ODS build..and a trainwreck
Moderators: Slowy, Capt. Black
-
- Vintage Post Junkie
- Posts: 1139
- meble-kuchenne.warszawa.pl
- Joined: Sun Jan 10, 2016 7:46 am
- Location: Auckland/Tokyo
- Has liked: 189 times
- Been liked: 902 times
Another ODS build..and a trainwreck
Just another D-mble update. Pretty sure everyone is sick of seeing D-mble builds by now. + T-wreck express.
Since the the last #102 went to miniforklift, decided to have another for myself with a similar build quality to the JM amp. Instead of using F&T, It's using IC caps.
ODS: This is the RF model. This amp has been modded and slightly simplified (FET CIRCUIT REMOVED). also tried a different layout of components. Will upload more photos tonight. 6l6 50w with 25w half power switch..FW ETC..
T-wreck: Currently have the chassis and waiting for the other parts to be avail.
Also planning a Tweed ODS build in the next few months. Schematic -currently handwritten.
Since the the last #102 went to miniforklift, decided to have another for myself with a similar build quality to the JM amp. Instead of using F&T, It's using IC caps.
ODS: This is the RF model. This amp has been modded and slightly simplified (FET CIRCUIT REMOVED). also tried a different layout of components. Will upload more photos tonight. 6l6 50w with 25w half power switch..FW ETC..
T-wreck: Currently have the chassis and waiting for the other parts to be avail.
Also planning a Tweed ODS build in the next few months. Schematic -currently handwritten.
Last edited by Marshmallow on Tue Mar 30, 2021 6:04 pm, edited 1 time in total.
- robthemac
- Vintage Post Junkie
- Posts: 8623
- Joined: Sun Apr 28, 2019 3:47 pm
- Has liked: 1106 times
- Been liked: 1422 times
-
- Vintage Post Junkie
- Posts: 1139
- Joined: Sun Jan 10, 2016 7:46 am
- Location: Auckland/Tokyo
- Has liked: 189 times
- Been liked: 902 times
Re: Another ODS build..and a trainwreck
Haven't had the chance to properly play it out today but it fired up the first time without issues. I ran out of time last night so I thought i'd leave it for the next day. Will be fine tuning the amp after work.... This means tuning the OD trimmer, Phase inverter trimmer, bias etc to make sure the amp "blooms" as it should and also to maximize the harmonic. The relay board is also mounted to on the chassis rather than on the side like the other dumbles. Diodes mounted on the power board to ease up the maintenance.
Layout is slightly different from the Two rock JM amp. BTW groundwork between the two is completely different as well. Bias trimpot to the left side of the valves. I can reposition this easily if I find it inconvenient.
Layout is slightly different from the Two rock JM amp. BTW groundwork between the two is completely different as well. Bias trimpot to the left side of the valves. I can reposition this easily if I find it inconvenient.
Last edited by Marshmallow on Tue Mar 30, 2021 6:04 pm, edited 1 time in total.
- MikeC
- Vintage Post Junkie
- Posts: 2946
- Joined: Fri Sep 12, 2003 5:43 pm
- Location: Red Beach, Auckland
- Has liked: 1315 times
- Been liked: 874 times
Re: Another ODS build..and a trainwreck
Wow, built so quickly! You must do long sessions to get it made so fast. Sleep??
Whakanuia o mea kei a koe
-
- Vintage Post Junkie
- Posts: 1139
- Joined: Sun Jan 10, 2016 7:46 am
- Location: Auckland/Tokyo
- Has liked: 189 times
- Been liked: 902 times
Re: Another ODS build..and a trainwreck
Not at all! haha I still get them sleep. Just familiar with the layout now haha.
- jeremyb
- Chorus of Organs
- Posts: 41123
- Joined: Sat Dec 06, 2008 9:03 am
- Has liked: 7727 times
- Been liked: 4169 times
Re: Another ODS build..and a trainwreck
Any progress yet?
Slowy wrote: That's the problem; everything rewarding is just such hard work. Regret takes much less effort.
-
- Vintage Post Junkie
- Posts: 1139
- Joined: Sun Jan 10, 2016 7:46 am
- Location: Auckland/Tokyo
- Has liked: 189 times
- Been liked: 902 times
-
- Vintage Post Junkie
- Posts: 1139
- Joined: Sun Jan 10, 2016 7:46 am
- Location: Auckland/Tokyo
- Has liked: 189 times
- Been liked: 902 times
- MikeC
- Vintage Post Junkie
- Posts: 2946
- Joined: Fri Sep 12, 2003 5:43 pm
- Location: Red Beach, Auckland
- Has liked: 1315 times
- Been liked: 874 times
Re: Another ODS build..and a trainwreck
I think F&T have the "pedigree/price" but I'm all for caps that are good quality regardless of brand. Some get really picky over "tone" caps but that's another subject
Whakanuia o mea kei a koe
- Bg
- Site Admin
- Posts: 43297
- Joined: Fri Sep 05, 2003 12:13 am
- Location: Auckland
- Has liked: 2264 times
- Been liked: 3907 times
Re: Another ODS build..and a trainwreck
So, is that low alcohol or no alcohol at all? mmmm, no alcohol, do you want to try it? Noooooooooo.
- jeremyb
- Chorus of Organs
- Posts: 41123
- Joined: Sat Dec 06, 2008 9:03 am
- Has liked: 7727 times
- Been liked: 4169 times
Re: Another ODS build..and a trainwreck
Someone had to pickup the slack!!
Slowy wrote: That's the problem; everything rewarding is just such hard work. Regret takes much less effort.
- Bg
- Site Admin
- Posts: 43297
- Joined: Fri Sep 05, 2003 12:13 am
- Location: Auckland
- Has liked: 2264 times
- Been liked: 3907 times
Re: Another ODS build..and a trainwreck
said the actress to the bishop
So, is that low alcohol or no alcohol at all? mmmm, no alcohol, do you want to try it? Noooooooooo.
-
- Vintage Post Junkie
- Posts: 1139
- Joined: Sun Jan 10, 2016 7:46 am
- Location: Auckland/Tokyo
- Has liked: 189 times
- Been liked: 902 times
Re: Another ODS build..and a trainwreck
Re: Filter caps, I agree.
Haha oh the tone cap discussion.. which do you prefer for your fender builds?
- MikeC
- Vintage Post Junkie
- Posts: 2946
- Joined: Fri Sep 12, 2003 5:43 pm
- Location: Red Beach, Auckland
- Has liked: 1315 times
- Been liked: 874 times
Re: Another ODS build..and a trainwreck
I don't have a preference - I just go for the best that are affordable and available!!Marshmallow wrote: ↑Tue Mar 23, 2021 7:59 pmRe: Filter caps, I agree.
Haha oh the tone cap discussion.. which do you prefer for your fender builds?
Whakanuia o mea kei a koe