[Hammarlund] SP-600 Cabinet

[kirklandb at sympatico.ca]

My conclusion is to ship the cabinet and radio separately.
On the one radio at home with a cabinet, I fashioned two vertical bars
 that go behind the cabinet flanges. These bars are drilled and threaded
 to accept the face plate mounting screws. Hence the bars act as a stiffener
 to distribute the force.

Your J-B weld must be a hell of a lot stronger than what I get up here.....

> From: 1oldlens1 at ix.netcom.com
> To: kirklandb at sympatico.ca; ka1kaq at gmail.com; stanleybadams at yahoo.com
> CC: hammarlund at mailman.qth.net
> Subject: Re: [Hammarlund] SP-600 Cabinet
> Date: Wed, 14 Dec 2011 11:23:51 -0800
> 
> 
> ----- Original Message ----- 
> From: <kirklandb at sympatico.ca>
> To: <ka1kaq at gmail.com>; <stanleybadams at yahoo.com>
> Cc: <hammarlund at mailman.qth.net>
> Sent: Wednesday, December 14, 2011 10:46 AM
> Subject: Re: [Hammarlund] SP-600 Cabinet
> 
> 
> >
> > The cabinets are also pretty weak.  I have had 2 receivers 
> > shipped in cabinets and both times
> > FedEx/UPS shock treatment cause the spot welds to break 
> > loose. Granted the receivers were
> > poorly packed, but the nature of the construction of the 
> > cabinet is that the radio is held in place
> > by a spot weld at the front corners of the cabinet and the 
> > cabinet metal is quite thin.
> >
> > In contrast, a 51J series cabinet is rock solid.
> >
>     I don't think the cabinets are so much weak as being 
> unreasonably stressed by shipping a 65 lb receiver in one. 
> The receiver is held by a clamp arrangement where the 
> mounting screws on the front go into a threaded bar in back 
> of the perforations in the front. Its a bit of a PITA to get 
> the screws in. The chassis is also held by two No.10 screws 
> at the back corners. One difference between rack mount and 
> cabinet mount chassis is the length of the two brackets in 
> the back corners: in rack mount chassis the brackets are 
> slighly displaced from the bottom chassis surface; uniform 
> with the other brackets; on the cabinet mount receivers the 
> brackets are longer and are flush with the edge of the 
> chassis. One could use long screws on a rack mount chassis 
> but probably it would not be very secure in comparison. I 
> think chassis and cabinets should be shipped separately. 
> Hammarlund sold a kit with brackets to make the change.
>      I have found that the spot welding for the brackets 
> holding the feet on and for the trim parts around the top 
> hatch tend to let loose. Can be rewelded but J-B weld is 
> probably much stronger. My cabinet (the only one I've ever 
> seen surplus) had one bracket broken off and I made a new 
> one. Someone had fixed the other in the dim, distant, past 
> by drilling holes and bolting it on.
> 
> 
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com 
>