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Hammond Chassis?

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spatten

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Joined 2013
#1
Quick question :

Does anyone know if the 20 gauge steel Hammond chassis, or the aluminum, are up to supporting 3 good sized transformers, a la single ended stereo 300B amplifier?

They have some nicer ones that have walnut sides that I'm looking at.


Thanks,
Scott
 
#5
The material in a commercial kitchen aluminum baking pan is fairly thick. Such pans are strong enough to stand on, without collapsing. 🙂 If it holds a man's weight, it should support amp "iron" well.

Obviously, finish work on kitchen ware will be move involved than a stock Hammond item. Liberal applications of "elbow grease" lead to reduced expense. Commercial kitchen ware is comparatively inexpensive.
 
#6
I'm lazy so I have been using a couple of these.
They are thin stainless steel but they handle the 10lb i have of iron with no problems.

edit: the link doesn't want to post properly, but they are called this on eBay:

Stainless Steel Chassis For Single-ended EL34 KT66 KT88 6L6 Tube Amplifier Amp
 
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#7
I am using the 1441-38BK3 17x14x3 Hammond chassis for my GM70 amp. I have a smaller Hammond alloy chassis bolted inside to house and shield the switch mode filament supplies. I would say it is getting on for 35-40Kg and it doesn't flex at all. The alloy box braces the bigger steel one quite well. You can always add some bracing made from alloy angle stock if it's needed.

I have read a few posts where people slate the Hammond chassis for poor finish etc. I think they are great. My amp has the large steel chassis, two die-cast potting boxes and a 10x6x5.2 inch cage and they are all pretty good. The powder coat is not bad at all.

All in all I would recommend them.

Cheers
Matt.
 
#12
At work right now but I did get the 12Ga versions. I used a uni-bit to make the holes but don't see a problem with a punch. There are small gaps at the corners where the metal is bent together. I used a bit of epoxy putty to fill them and then smooth them with sandpaper before painting. I can get you a pic or two later today if you'd like. Also no affiliation with these folks.
 
#13
1a.jpg

2a.jpg

3a.jpgHere ya' go. Sorry for the delay. These are pics of a ppp KT-120 guitar amp, the rear of the HV supply and a KT-88 power supply. The HV supply is unfinished as it's mounted in a rack. Hope this helps.
 
#15
Has anyone used the perforated chassis top that Hammond offers? 1451-30 for example.

They are not very heavy steel, so could one attach a handle on the top of this perforated shell to use it for transportation? I was thinking of using this as a chassis top for a guitar amp. Aesthetics are guite good to me, but I wonder if this perforated top can handle underneath weight before bending. The other option is to use two side handles, attached to the bottom chassis.

This top chassis is way cheaper for me, instead of a wooden box. That's why I am asking. 🙂
 
#16
audiostrat said:
Has anyone used the perforated chassis top that Hammond offers? 1451-30 for example.

They are not very heavy steel, so could one attach a handle on the top of this perforated shell to use it for transportation? I was thinking of using this as a chassis top for a guitar amp. Aesthetics are guite good to me, but I wonder if this perforated top can handle underneath weight before bending. The other option is to use two side handles, attached to the bottom chassis.

This top chassis is way cheaper for me, instead of a wooden box. That's why I am asking. 🙂
Click to expand...

They are heavy duty but I would not put a handle on the top of it unless your amp is not going to be very heavy. They are nice looking though. I have a gray 8x12 one I'm going to use someday. The Handles on the side would be a better idea
 
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