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Motorola SK22DW Solid State Modular Stereo

Work2do

AK Subscriber
Subscriber
I found this unit advertised on CL this past Saturday for ten dollars. Seemed like a great idea to have something to tinker with on a bitter cold, snowy weekend. First at hand was to search for it online and found no images or information other than a 10+ year post on a antique radio site that wasn't of much help. I proceeded to give it a thorough cleaning, removed the cover to blow it out/vacuum, clean all pots, tuner thing (PITA), strip the Garrard 3500 of old grease, re-lube etc. Checked with a dim bulb before powering up and away we went. The unit works well and sounds good though I have a few more items to sort out. Stylus is worn with electro voice ceramic cartridge (EV5254D), needs a bulb to illuminate the TT cabinet and the tuner only works with the TT powered on/spinning.

Some interesting things and features include the primary speaker jacks use guitar amp style plugs. Auxiliary speakers use 3 screw downs (L, R & common). There are separate on/off rocker switches on the back for both sets of speakers. Also has a tape input and auxiliary antenna hook up. Picks up stations very well with just the built in on both bands. Sounds very good with my Onkyo book shelf test speakers. All in all, I really like it and will keep it. I know it is not a console, but shares the same guts. It appears to be among the last of stereo mass production on US soil. I did not find anything to indicate it is imported other than Garrard changer. The sticker on the bottom of the cabinet says printed in Franklin Park, IL with several US copyrights shown in small print. The guts are pretty substantial in size/weight and doesn't have much printed circuitry. I did purchase a manual covering the tuner/amp section through SAMS though it is not model specific (dated 1/69). Would love to know more about it, including why the tuner only works with the TT running. Seems to be pretty scarce in numbers. All commentary and info is welcome including the jokes about it !

Regards, John
 

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Welcome to AK!

That'll probably never win a prize for best sounding at an audiophile show, but it's very cool and looks to be in excellent shape. Nice score and save, for ten bucks. You'll get more wholesome entertainment out of this than 1/2 of a movie ticket.

When you get the schematic, post a scan and I'm sure we can figure out the turntable/tuner power issue.
 
When you get the schematic, post a scan and I'm sure we can figure out the turntable/tuner power issue.
Don't mean to go too far off the subject, but where would it be most appropriate to post service manuals/schematics here ? In addition to the Motorola, I also would be happy to post manuals for the JVC 5445 quad receiver, Sherwood S-8500 and others. Just need to convert them to a suitable medium to upload. As for the Moto tuner power, I will look for the obvious first. Have a suspicion I probably failed to connect a cable when reassembling (dooooh !).
 
Fantastic! Love it.
Thanks and it will be used plenty ! I have hundreds of LP's & 45's , many dating back to my childhood and 2/3 of them have seen better days. This thing is meant for them using a stylus going for selling for around five bucks. To heck with imperfect sound, I get pleasure just from watching a record label rotate. I use a Sansui DD with an old Shure cartridge for my GC + vinyl.
 
Sams manuals after 1963 remain in copyright and they defend them - I once received a nastygram from Sams, even though I'd previously asked and received permission to post part of a later Sams folder on my site. '63 and before are public domain, can be posted without worries. Other companies' manuals should be fine, as they aren't selling them and have no need to maintain a copyright.

.pdf is best, but if you don't have Acrobat, someone here will volunteer to convert it for the manual library.
 
Excellent point. In no way do we want to get in trouble with Sams copyright issues.
 
Excellent point. In no way do we want to get in trouble with Sams copyright issues.
Thank you all above for bringing that to the attention of all users. I will consider that before posting anything and be happy to discuss sharing through private message should there be an issue. In the meantime I've been enjoying binge reading post's here and learning a lot. Most of the gear I have in storage is covered to some extent which helps me to decide what goes on the bench next (all of it needs TLC). Found VM to be quite helpful on matching up a cartridge for the Motorola/Garrard, which just arrived. Based on the information I was given and based on my needs, sticking with a ceramic is what will be.
 
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