Dumble ODS 102 build

[desertmouth90]

Here is the Dumble ODS 102 Build I have nearly done (Just grounding and Transfomers yet to finish/Order)

I am contemplating going with 100 watt transformers as I can always switch it down to 50 watts and I think ill be ordering the Dumble style OT and PT from Tube Town as I cannot find anything in the UK to go with it.

I will need to plate over the Cap Can opening as im not utilising this bit - I have no idea how to go about doing this bit.

The PCB was used courtesy of AA Electronics (Fantastic quality boards btw).

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

What Speakers do other people use? I may have more questions too.

[martin manning]

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

You can do that with a multimeter. See here: https://ampgarage.com/forum/viewtopic.p ... 75#p417375

[GAStan]

For the Cap Can opening try these covers

[desertmouth90]

For the Cap Can opening try these covers

Sadly im based in the UK, my mate sent me some cracker barrel pancake mixture to my home in London once and I was hounded by FedEx to pay £37... the mixture was $9.

UK and US trade is not great.

[GAStan]

For the Cap Can opening try these covers

Sadly im based in the UK, my mate sent me some cracker barrel pancake mixture to my home in London once and I was hounded by FedEx to pay £37... the mixture was $9.

UK and US trade is not great.

Sorry to hear about the bad trade situation.

Those plugs are fairly common here, I've seen them at electrical supply merchants. Perhaps something similar is available in thr UK.

[rogb]

Here is the Dumble ODS 102 Build I have nearly done (Just grounding and Transfomers yet to finish/Order)

I am contemplating going with 100 watt transformers as I can always switch it down to 50 watts and I think ill be ordering the Dumble style OT and PT from Tube Town as I cannot find anything in the UK to go with it.

I will need to plate over the Cap Can opening as im not utilising this bit - I have no idea how to go about doing this bit.

The PCB was used courtesy of AA Electronics (Fantastic quality boards btw).

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

What Speakers do other people use? I may have more questions too.

Why not use Hammond Twin transformers from Mouser? No tax shipping or duty to pay and they normally turn up in 3 days from USA
https://www.mouser.co.uk/ProductDetail/ ... sBoQ%3D%3D

https://www.mouser.co.uk/ProductDetail/ ... OQaQ%3D%3D

[rogb]

As for speakers, 150w Swamp Thang in Thiele cab works great or Celestion G12-65s in open back.
Many use EV 12 but I found them good only at gig volumes.

[desertmouth90]

Here is the Dumble ODS 102 Build I have nearly done (Just grounding and Transfomers yet to finish/Order)

I am contemplating going with 100 watt transformers as I can always switch it down to 50 watts and I think ill be ordering the Dumble style OT and PT from Tube Town as I cannot find anything in the UK to go with it.

I will need to plate over the Cap Can opening as im not utilising this bit - I have no idea how to go about doing this bit.

The PCB was used courtesy of AA Electronics (Fantastic quality boards btw).

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

What Speakers do other people use? I may have more questions too.

Why not use Hammond Twin transformers from Mouser? No tax shipping or duty to pay and they normally turn up in 3 days from USA
https://www.mouser.co.uk/ProductDetail/ ... sBoQ%3D%3D

https://www.mouser.co.uk/ProductDetail/ ... OQaQ%3D%3D

Would you say these are better choices than the Tube Towns? they are more expensive. I have the Hammond 194B choke already.

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

You can do that with a multimeter. See here: https://ampgarage.com/forum/viewtopic.p ... 75#p417375

My Multimeter Doesnt do that, I may need to buy another.

[rogb]

Sorry I don't know about Tube Town transformers. I've used Hammond Classictone (no longer available) and Mercury (very expensive). I know folks in the USA use Heyboer. Find out who makes their ones and make the decision. Inmadout in Italy are also good.
Bear in mind EU products may be subject to shipping and duties plus handling to UK. With Mouser it's all taken care of.

[rogb]

Here is the Dumble ODS 102 Build I have nearly done (Just grounding and Transfomers yet to finish/Order)

I am contemplating going with 100 watt transformers as I can always switch it down to 50 watts and I think ill be ordering the Dumble style OT and PT from Tube Town as I cannot find anything in the UK to go with it.

I will need to plate over the Cap Can opening as im not utilising this bit - I have no idea how to go about doing this bit.

The PCB was used courtesy of AA Electronics (Fantastic quality boards btw).

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

What Speakers do other people use? I may have more questions too.

Why not use Hammond Twin transformers from Mouser? No tax shipping or duty to pay and they normally turn up in 3 days from USA
https://www.mouser.co.uk/ProductDetail/ ... sBoQ%3D%3D

https://www.mouser.co.uk/ProductDetail/ ... OQaQ%3D%3D

Would you say these are better choices than the Tube Towns? they are more expensive. I have the Hammond 194B choke already.

I have also made a huge error of not testing the orientation of any of my Orange Drop Caps so I am trying to buy a second hand Oscilliscope from someone on FB Marketplace (Havent gone to pick it up yet)

You can do that with a multimeter. See here: https://ampgarage.com/forum/viewtopic.p ... 75#p417375

My Multimeter Doesnt do that, I may need to buy another.

If your multimeter doesn't read mV, best get another one I think.

[desertmouth90]

Do you recommend anything cheap?

[rogb]

Do you recommend anything cheap?

Most people measuring voltages in these amps use Fluke. You can run into 750v AC on some transformers. So 1000v DC.. Cat II.
I use a USA Wavetek (ex BT), but do a search on here and see what folks use.

[xtian]

I got this one as a compact backup meter, and it quickly became my #1:

https://www.amazon.com/Fluke-101-Multim ... 01IB9S6WK/

[Guitarman18]

This is a really simple and effective way to find the outer foil of your caps.

https://www.youtube.com/watch?v=1f-LdpJiAk4

No scope or box required.

[martin manning]

This is a really simple and effective way to find the outer foil of your caps.

Sometimes the difference is subtle, so I prefer using a DMM or scope to get a quantitative measurement.