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where to buy some chassis?
Ross, NS7F wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F Mouser has a respectable line of aluminum and steel chassis in their catalog. The selection, today, is not what it was back in the 50's or 60's, but you can find what will work. Prices are a lot higher, too, especially for cabinet-type metalwork! I just pulled the '57 issue you spoke of. No problem with the chassis but the cabinet no longer exists from Bud, et al, much less Hammond. There is a fellow who ads in several pubs that makes aluminum chassis and cabinets. He's resonable and I'm sure he can gin up what you need. He's located in the Mid-Atlantic area and I saw him, last weekend, at a local hamfest. de K3HVG |
where to buy some chassis?
I would like to build some tube transmitters and am curious where
other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F |
where to buy some chassis?
"Ross, NS7F" wrote in message oups.com... I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F http://www.youdoitelectronics.com |
where to buy some chassis?
Ross, NS7F wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Aluminum chassis are available ($10-$30 range depending on size) from www.digikey.com, www.mouser.com, www.tubesandmore.com, etc. Kitchen pans/baking trays can be surprisingly effective as well for a lot less money. A good hardware/welding store will have aluminum sheet and extrusions. Home Depot etc. really suck in this area. As far as full metal cabinets go, the above-named distributors will have them by Hammond, Bud, etc., but you'll be shocked at the prices. Recycled enclosures from other projects or picked up at hamfests are quite affordable though. McMaster-Carr has a lot of stuff, not discount prices, but excellent selection and they ship to me overnight via UPS ground. They also have a lot of plastics, tubes, etc. http://www.mcmaster-carr.com/ Tim KA0BTD |
where to buy some chassis?
Tim Shoppa wrote:
snip Aluminum chassis are available ($10-$30 range depending on size) from www.digikey.com, www.mouser.com, www.tubesandmore.com, etc. Kitchen pans/baking trays can be surprisingly effective as well for a lot less money. A good hardware/welding store will have aluminum sheet and extrusions. Home Depot etc. really suck in this area. Also, consider having enclosures made at a local sheet metal shop (heating, cooling, ventilating); I've had them done for _very_ little money out of galvanized, and you can solder to them. Regards, Michael |
where to buy some chassis?
Hello,
The aluminium that retail chassis are made from is a joke. Get some 1.6mm 5052-H14 from a local aluminium shop, a $30 brake and away you go. You can make 5-7 for the cost of one retail ;-) Cheers, __ Gregg |
where to buy some chassis?
Ross,
Commercial outlets like Digi-Key, Mouser, Newark-Inone, and Allied Electronics carry a wide array of aluminum and steel enclosures. They're not cheap these days, but if you need one, you need one. Also keep an eye on eBay for chassis and enclosures. I've snagged some good ones there at very reasonable prices. And, of course, visit every local hamfest and SK estate sale. There are still bargains to be had that way. I picked up a nice cabinet at an estate sale just the other day which I intend to build a power supply in. It is about 6" tall, 8" deep, and 12" wide, and it's new in the original box. The was only $6.00! I buy cabinets and chassis whenever and wherever I find them, and then worry about what I can use them for. The projects you're contemplating sound like something I'd build! (see my web site, http://www.qsl.net/k5dh ) 73 and good luck! Dean K5DH In article .com, says... I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F |
where to buy some chassis?
On May 7, 3:45 am, geek wrote:
Hello, The aluminium that retail chassis are made from is a joke. Get some 1.6mm 5052-H14 from a local aluminium shop, a $30 brake and away you go. You can make 5-7 for the cost of one retail ;-) A factor of 5:1 in price? My local sources charge about $5 per sq ft for 0.040" 5052-H14 aluminum. A 17x10x3 chassis needs about 3 square feet. That's $15 for materials, not counting wastage because the local source only sells it in 4x8 feet sheets :-). I compare that to $25 for a Hammond chassis of the same size already made and spot welded, and I don't see as big (5:1 or 7:1) of a disparity in prices as you do. Now, I can get little (square foot or two) aluminum cutoffs at some scrap piles for a lot cheaper, and those work great for tiny little subchassis or miniboxes, even better to do it myself there because dimensions are often critical. Maybe I'm buying really super expensive aluminum and you know where to get it for $1 or so a square foot. If so, tell me where! Tim. |
where to buy some chassis?
Ross, NS7F wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Antique Electronics Supply, Allied Electronics, and Newark Electronics all carry either the Hammond, Bud, or LMB chassis. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
where to buy some chassis?
Ross, NS7F wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? That "Novice Special" is a good article. Reminds me of my first transmitter, a 6C4 driving a 2E26. Got me a special, commemorative QSL from the FCC. Apparently, I was 599 on 7446! You are in luck! LMB is still around and still makes that very cabinet: http://www.lmbheeger.com/products.asp?catid=18 I also like Mouser. Order something from them and you'll get catalogs for a long time. Lots of parts.. http://www.mouser.com/ Also, MPJA has interesting items from time to time. http://www.mpja.com/ 73, OM. -- Doug, W7KF |
where to buy some chassis?
The aluminium that retail chassis are made from is a joke. Get some
1.6mm 5052-H14 from a local aluminium shop, a $30 brake and away you go. You can make 5-7 for the cost of one retail ;-) A factor of 5:1 in price? My local sources charge about $5 per sq ft for 0.040" 5052-H14 aluminum. A 17x10x3 chassis needs about 3 square feet. That's $15 for materials, not counting wastage because the local source only sells it in 4x8 feet sheets :-). I compare that to $25 for a Hammond chassis of the same size already made and spot welded, and I don't see as big (5:1 or 7:1) of a disparity in prices as you do. Now, I can get little (square foot or two) aluminum cutoffs at some scrap piles for a lot cheaper, and those work great for tiny little subchassis or miniboxes, even better to do it myself there because dimensions are often critical. Maybe I'm buying really super expensive aluminum and you know where to get it for $1 or so a square foot. If so, tell me where! ========================== Over the years I bought some large size sheets double sided PCB material at flea markets. Provided there are no heavy transformers ,both chassis and enclosure can be made of the material. Under chassis screened compartments can be easily included. Frank GM0CSZ / KN6WH |
where to buy some chassis?
Ross, NS7F wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F How about a sheet metal shop? I used to get mind made for the price of a case of beer. Irv VE6BP |
where to buy some chassis?
On May 6, 4:36?pm, "Ross, NS7F" wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F If you've been around electronics a while, you might remember the "SeeZak" line of modular chassis sides and tops. LMB-Heeger carries that same thing now: www.lmbheeger.com Click on "OmniChassis" on their Products link page. Chassis sides (sold in pairs) come in 2", 3", or 4" height with lengths from [height] to 17" in increments of one inch. The material is aluminum, 0.040" think. Chassis tops and bottoms come in all dimensions from 4" x 4" to 17" x 17". Top/bottoms are fastened to side pieces with small sheet metal screws (holes provided) at one-inch increments. Side piece ends snap together, final fastening by the screws through top/bottom panels to the bent-over edges of side pieces. Top/bottom panels thicknesses are 0.040", 0.050", or 0.063" depending on their overall dimensions (13" x 13" and bigger are 0.063" thick). One can use the smaller-length side pieces to form in-chassis walls for shielding or extra mechanical support. An advantage in hole drilling of tops/bottoms is that panels can be mounted on scrap plywood for support (such as in drill press) or punched via industrial punch presses (hard to find those presses now). Not cheap but they don't cost an arm and a leg either. Another advantage is that making a mistake on hole locations isn't a scrap-out of a whole chassis or klugey retrofit...just use another panel or side piece. While the aluminum alloy is "softer" than 2024, an assembly is as robust mechanically as any fully-formed chassis bought as a unit. I find them very useful in making near-production quality prototypes since they turn out as neat as any full-chassis version. 73, Len AF6AY |
where to buy some chassis?
LMB Heeger is still in business.
... and they still make the SQ-1 http://www.lmbheeger.com/products.asp?catid=18 LMB/Heeger, Inc. 6446 Flotilla St. Commerce, CA 90040-1712 (323) 728-5108 Phone (323) 728-4729 Phone (323) 728-6913 Phone (323) 728-4740 Fax Office Hours 7:30 AM - 4:00 PM Monday - Friday Pacific Standard Time "Ross, NS7F" wrote in message oups.com... I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F |
where to buy some chassis?
On May 6, 7:36 pm, "Ross, NS7F" wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F Yes, buy or build a small sheet metal brake, or use one at a air conditioning place or airport. |
where to buy some chassis?
Hi Tim,
My local sources charge about $5 per sq ft for 0.040" 5052-H14 aluminum. A 17x10x3 chassis needs about 3 square feet. Bobs around between $2.75 and $3.15 CAD where I live in a trucking/farming community. No shortage of full-sheet capable aluminium shops. Got 5 within a 20 minute drive. That's $15 for materials, not counting wastage because the local source only sells it in 4x8 feet sheets :-). I compare that to $25 for a Hammond chassis of the same size already made and spot welded, and I don't see as big (5:1 or 7:1) of a disparity in prices as you do. $25 for a 17x10x3 Hammond? You must be in the US. They are $45 here. So, from my POV, buying retail chassis is just silly. Cheers, Gregg |
where to buy some chassis?
geek wrote:
Hi Tim, My local sources charge about $5 per sq ft for 0.040" 5052-H14 aluminum. A 17x10x3 chassis needs about 3 square feet. Bobs around between $2.75 and $3.15 CAD where I live in a trucking/farming community. No shortage of full-sheet capable aluminium shops. Got 5 within a 20 minute drive. Ahah! The great land of ALCAN. $25 for a 17x10x3 Hammond? You must be in the US. They are $45 here. Strange thing is, Hammond is a Canadian company! I lived in Canada for two years myself and could not explain the economics either. Tim. |
where to buy some chassis?
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where to buy some chassis?
On May 6, 5:36 pm, "Ross, NS7F" wrote:
I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F Well, Ross. The dates of the articles are about the time I got my novice license. Back then we could go to a sheet metal shop and tell them the size of the chassis ( box to them!) and they would cut it and fold it and spot weld it. This was using galvanized sheet steel. I supposed aluminum sheet was available, but cost more. I am sure you could go to a similar sheet metal shop or heating/cooling shop and have them make a box for you. Another possibility is to watch Ebay for something that will work for you. Although that might take a while. Good luck. Paul, KD7HB |
where to buy some chassis?
Hi Tim,
Strange thing is, Hammond is a Canadian company! I lived in Canada for two years myself and could not explain the economics either. Tim. Our economics are like our politics - inexplicably stupid *rolls eyes* It's cheaper for me to buy and import Hammond from Parts Express than it is to buy from a dealer an hour away. Dumbfounds me too. What IS a super deal are Chinese made rack mount cabs w/panel from RP Electronics in Burnaby, BC.... thicker aluminium than the Hammond and $57 compared to ~$180 for the Hammond. I kicked one around (literally), quality is comparable. Cheers! Gregg |
where to buy some chassis?
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where to buy some chassis?
I get mine at Mouser Electronics here in the USA...
http://www.mouser.com/search/Refine....RefType=Header Scott N0EDV gudmundur wrote: In article .com, says... I would like to build some tube transmitters and am curious where other people get their chassis? Article 1 (The Novice Special, from the arrl website) calls for LMB SQ-1 cabinet (8.5 x 4.5 x 4.5 in) which "comes complete with chassis and front panel". Article 2 (A Three-Band One-Tube Novice Transmitter, from Dec '57 QST) calls for a 2 x 7 x 13 in aluminum chassis enclosed in a 7 x 9 x 15 in aluminum box. Any suggestions? Thanks and 73, Ross, NS7F There is a guy in Dover Pa. named Charles Byers and he custom builds chassis any size you want. He is a ham although I forget his callsign. I do know he lives on Harmony Grove Road however. Look him up. -- Scott http://corbenflyer.tripod.com/ Gotta Fly or Gonna Die Building RV-4 (Super Slow Build Version) |
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