Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]()
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 |
#2
![]() |
|||
|
|||
![]()
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 |
#3
![]() |
|||
|
|||
![]() "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 |
#4
![]() |
|||
|
|||
![]()
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 |
#5
![]() |
|||
|
|||
![]()
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 |
#6
![]() |
|||
|
|||
![]()
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 |
#7
![]() |
|||
|
|||
![]()
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 |
#8
![]() |
|||
|
|||
![]()
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. |
#9
![]() |
|||
|
|||
![]()
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." |
#10
![]() |
|||
|
|||
![]()
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 |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
where to buy some chassis? | Boatanchors | |||
DX-440 Chassis Available | Shortwave | |||
Hot Chassis | Boatanchors | |||
Help, I have a hot chassis, 12 v is everywhere | CB | |||
Isolating a "hot" chassis | Boatanchors |