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HF/MW/LW Equipment - For general and technical discussion of all receivers which cover the HF bands. For HF tranceiver discussion please use the Amateur Radio Equipment forum above.

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Old 05-07-2018, 9:48 PM
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Default cousin came across a ton of NOS grundigs etc.. Caps okay?

My cousin bought a warehouse that has not been used for ages, he found pallets of New old stock of Grundig 700s and Sony 2010s.

if they have been sitting in storage for a long time can this stuff just be turned on and no issues? or do they require a warm up procedure.

Any issues different between a Sony 2010 reciever and Grundig Sattelit 700 in terms of longevity if they were in storage never used? I keep hearing Caps will be the big issue even if not used?
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Old 05-07-2018, 10:51 PM
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There is less to worry about with low voltage stuff like the batt operated portables. You basically turn it on a see what happens. If they have an external power input you could slowly bring them up from zero to whatever they run on, but it seems rare for low voltage electrolytic to completely fail and blow up.

Seeing a reduction in electrolytic capacitance is a real possibility with a slight hum possible with a built in AC supplies and some bass roll off due to less coupling in the audio stages. I would also worry about any crystal filter drift causing the receive passband to shift some.
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Old 05-07-2018, 11:33 PM
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https://radiojayallen.com/sony-icf-2...-time-classic/
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Old 05-08-2018, 5:33 AM
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I think your cousin just bought a gold mine.
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Old 05-08-2018, 5:46 AM
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The Sony ICF-2010 was the 'Cadillac' of portable radios in it's day! The only thing I recall is to keep static electricity away from the antenna. See article below that details the problem and the fix:

Any owner of a Sony ICF-2010/2001D should be aware of the problem involving a blown front-end FET. It is (or at least was) a very common problem for these radios. The problem typically manifests as reduced sensitivity.

[complete article/source]
ICF-2010 Front End Modifications
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Old 05-08-2018, 1:23 PM
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Also see this thread...

https://forums.radioreference.com/re...r-project.html

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Old 05-08-2018, 5:45 PM
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Would love to pick up a 2010....Once owned one, and yep, blew the front end...Did the fix and eventually traded it off. A terrific travel radio...Now it's my AOR 8200 or 8600. Still want one though.
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Old 05-08-2018, 8:31 PM
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Default do tell him

about the fact that there is a classified section to this website.
it would make many people happy.
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Old 05-09-2018, 7:22 PM
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I agree with the others. Digital SW radios that have been in storage -- especially at the age you are talking about -- probably should work OK without too many glitches, especially if stored in a dry place (probably no glitches at all).

Electrolytics can go bad, but I have transistor radios that are 40 years old or more and they still work fine. There may be some reduced performance from altered values due to the aging of the compornents, but if there were, you probably wouldn't even notice it.
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Old 05-09-2018, 8:43 PM
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Default Grundig 700

I think that Grundig has synch AM, LSB and USB which means it is a nice shortwave radio. Where did he find all these? Did a SW dealer go bust or were they in a basement of the CIA or some NGO.

I remember buying my first new modern shortwave radio in Chicago in the very early 80's, not yet 1983 and Able Archer. Not sure what the world political scene was on that very year, but the dealer saw my last name and said, "hmmm we have had a lot of Germans buying shortwave radios this week".
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