The Amp Garage

If I don't plan to use it as a mute switch, is the standby switch really needed? For the power supply, I am using 500v capacitors. Just wondering what your opinions are.

Regarding the chassis, I don't recall anyone ever talking about ventilation. Are vent holes in the chassis needed so that heat from the tube can be dissipated or is heat not an issue with this circuit?

I bought some predrilled boards from a Amplified Nation when I built my #183 amp. I would love to find a source for blanks of that type of material. It looked like fiberglass or perhaps blank PCB board. If I'm not mistaken, those boards are 1/16" G-10/FR4. Do you see them as being "flimsy?" Doublin...

Thanks erwin and xtian!
I see that there are many different thicknesses to choose from. Which do you use?

1)What are people using for eyelet board material? I bought some predrilled boards from a Amplified Nation when I built my #183 amp. I would love to find a source for blanks of that type of material. It looked like fiberglass or perhaps blank PCB board. 2)Any recommendations for a chassis/box? I'm u...

Thanks Martin! That got me there. Looks like they also call it an angle bracket.

The pictures show the boards mounted perpendicular to the bottom of the chassis. What is the hardware called that allows you mount a board in this position and where can it be purchased?
Thanks in advance!

Thanks Martin, Bill and Guy for your responses. They were helpful.
I just finished the grill cover and piping. I'm very happy with the look of my grill cover. However, I'm a little disappointed in my piping job. I didn't find any good tutorials on installing that.

I just completed the tolex job on my first speaker cab. Now I just need to do the speaker grill. I'd like to make it look like the attached image. Does anyone know the name of this type of grill material and where to buy it. Also, what is the white part called? Binding?

Thanks for all of the tips. My first cabinet covering was a success. The finished product looks really nice. Surprisingly, the part that gave me the most trouble was cutting the seam. I used a new blade in my box knife and bared down hard on the cut but still had issues getting through both pieces o...

Glenn, The T Nuts worked really well. I got #10s from Home Depot. With T Nuts you still have a hole that goes all the way through. In my opinion, they are way less hassle than a nut and washer. When installing the screw you don't have to hold the nut and washer with your other hand. When taking out ...

Thanks Glenn, I think a T Nut is a good choice here.

The recent cabinet that I built follows the Dumble dimensions and plan that can be found on this site. It's the 1 x 12 inch speaker cab with an oval opening in the back. I used 1/2 inch birch plywood with a 12 inch EV speaker. It's not light. What would you recommend for handle screws? Heavy duty wo...

I have another rookie question. How important is it to pre-drill holes prior to applying tolex? I've seen videos where the holes are pre-drilled. Once tolex is applied, a heated awl is used to open the hole in the tolex. They say that this process prevents a screw from messing up tolex. It doesn't s...

important, dont cut all the length exactly, snd glue only 3 sides and 4.th bottom next day.. because tolex is shrinking and if doing all on the same day, thre will be visible gap when glue hardens.. next day making 4.th side easily, cut on size and will be no gap Does everyone agree that the one pi...