[Hammarlund] restoring SP-210X

[Al Parker]

Hi Gary,
	Maybe my account of a similar endeavor will be of some use to you - 
<http://www.boatanchors.org/SP200.htm> I"ve got some info on p.s. 
voltages there, don't see that I have current draws, but do have that 
info somewhere.  With al the PC problems I've had lately, don't expect 
me to find it easily or soon.
	Might be some more info on The Hammarlund Historian website 
<http://www.hammarlund.info> (go to the bottom to get in) but it's still 
suffering from a major server crash plus my local problems.
	You'll end up with a real nice band cruiser.
73,
Al, W8UT
www.boatanchors.org
www.hammarlund.info



On 4/15/2010 5:22 PM, gary hildebrand wrote:
> I've taken on the restoration of this gem, and am in need of some parts . .
> .
>
> So far, I'm rebuilding the RA-84 power supply with electrolytics (the
> original paper caps are gone), and replacing the old wiring with new plastic
> insulated wire and fuses for the B+ lines, and of course the obligatory 3
> wire line cord.  This restoration is limited to front panel cosmetics, and a
> working receiver. The previous owner had added a couple large 10 mfd @1kv
> paper caps, mounting them to the front panel . . . YEEEEECH!!!  And put a
> pair of filter chokes in on the bias supply.
>
> I'm planning to use perf board, and Sprague TVA electrolytics, 10 mfd or so
> @450v, if the unloaded B+ is about that.  Should I go 500 or  more?
>
> I have only two of the original small knobs, and depending on price, would
> like to make a complete set.
>
> I also need two of the SPST rotary switches (Limiter off/on),
> (send/receive).  ISTR Switchcraft made some that looked like their toggle
> switch bodies with a shaft out the side, and a half/moon bulge on one side.
>
> I'd like to find a proper name tag for the front panel, BC1004, made by
> Wilson.  The power supply still has its label, and it is made by Wilson.
>
> Any good ideas on a cover over the power supply connections/fanning strip?
> I was thinking something like 1/2 of PVC pipe, or equivalent.  I want to
> make this safe enough for anyone to be sticking their fingers in things and
> not getting kicked across the room .  . IYKWIM.
>
> Other than a paint job after filling in extraneous holes in the panel, it
> looks like there hasn't been any other hacks applied.  It's a shame to see
> something this well built hacked by schlock repairs, and wiring with
> friction tape . . . !?!?!?!?!?  I can fix that . . .  Add to it a nice
> speaker and box from a car stereo shop, and matching transformer, and I
> should be in business.
>
> Thanks for your time and help . . .
>
> Gary Hildebrand WA7KKP
> Bozeman, MT
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