Billion Watt Load Bank Build

[WOPL Sniffer]

I had some input from a NASA tech (he got fired for being High), but it is loosely based on the info from Lee's schematic in the other thread. I got my 250watt 8 Ohm resistors and a couple DPDT Carling Illuminated resistors. When switched to the left, the illumination at the tip of the switch will indicate "Green" for left and right 8 ohm load, and to the right, the color goes to "Red" indicating left and right 4 ohm load. It will have connections to monitor both channels, power for the 12 volt fans and Power Switch. I ordered my Bigg ASS Heat Sinks. 12" wide and 18" Long for the base, and the 2 sides where the resistors will bolt to are 8" tall by 18" long and the top will hide any cobbling should I feel the need to cobble stuff......... The fan will bolt to the end cover and the front cover will have the switches and controls on the front with the air intake. The heat sinks will be here in a day or three. So far, I got $150 into it. I finally found a use for the 12 and 14ga wire Navo sent to me with a wire order a while back. I think I'll put in a heat disconnect (like the WOPL's) just in case. Maybe I'll airbrush it with Green Flames.

It should handle 500WPC (or 40 amps whichever comes first......)

 

[WOPL Sniffer]

I should have shopped around for the switches. I paid Mouser double what they are going for on other sites like Grainger/Zoro etc....

 

[WOPL Sniffer]

I forgot to add the cost of the rest of the parts, which is total of $250. At least that's what I tell the Money Manager (wife).

But, if you factor in what a good load bank is, that's friggin cheap. My Navy Math is working great.

 

[WOPL Sniffer]

Gotta see if pulling air OUT, or pushing it IN works the best. I have a mini sensor which transmits to the base station the temp n shit..... so I could monitor and have an alarm go on.

 

[J!m]

Usually pulling heat out is best but depends on the aromatic engineering going on in there.

 

[Vintage 700b]

I had some input from a NASA tech (he got fired for being High), but it is loosely based on the info from Lee's schematic in the other thread. I got my 250watt 8 Ohm resistors and a couple DPDT Carling Illuminated resistors. When switched to the left, the illumination at the tip of the switch will indicate "Green" for left and right 8 ohm load, and to the right, the color goes to "Red" indicating left and right 4 ohm load. It will have connections to monitor both channels, power for the 12 volt fans and Power Switch. I ordered my Bigg ASS Heat Sinks. 12" wide and 18" Long for the base, and the 2 sides where the resistors will bolt to are 8" tall by 18" long and the top will hide any cobbling should I feel the need to cobble stuff......... The fan will bolt to the end cover and the front cover will have the switches and controls on the front with the air intake. The heat sinks will be here in a day or three. So far, I got $150 into it. I finally found a use for the 12 and 14ga wire Navo sent to me with a wire order a while back. I think I'll put in a heat disconnect (like the WOPL's) just in case. Maybe I'll airbrush it with Green Flames.

It should handle 500WPC (or 40 amps whichever comes first......)



View attachment 85641 View attachment 85642

Looking good !
Definitely Airbrushed Green Flames Perry !!!!

 

[J!m]

Or leave the fan off for real flames!

 

[20tajk7]

Nice audiophile space heater, I would push the air in as it will keep the fan cool.

 

[WOPL Sniffer]

Looking good !
Definitely Airbrushed Green Flames Perry !!!!
View attachment 85643

Damn, I'm not that good