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Hello,
I know most experts would recommend tuning up a 50 year old tube amp (new caps, replace out of spec resistors, etc.). How about a solid state Sherwood S-7300 receiver? I purchased this new around 1973 so I know it has never been abused. I'm listening to it now and it still sounds great. Should I or shouldn't I have a skilled restorer give this unit some TLC? I'm torn, it's still working perfectly, but maybe it's a ticking time bomb at this point. Please advise. Thanks!
Follow Ups:
Any Carbon resistors are anywhere from a little to a LOT out of original value.
Caps only last so long.....the big PS caps are certainly dry at this point.....
The semiconductors SHOULD still be ok.....though they wear out, too.
Any wire wrap should still be OK....at least it is in my '70s Kenwood integrated.......
Sure.....no reason NOT to get it checked out!
Too much is never enough
I've decided to go ahead and have it restored. And since it has gone for long periods without use over the years the electrolytics probably aren't in the best of shape. If I want to keep using this thing for another decade or so with no worries, I think it's time to give it some TLC. Thanks again everyone!
Personally, if the receiver is tuning in stations just fine, sounding fine, and functioning flawlessly - I wouldn't mess with it.
If you do get it serviced I would search out a local tech that specializes in vintage gear. If it ain't broke don't let some booger fingered backwoods YAYHOO dink with it.
If it were mine, I would go through it. Replace all electrolytics, and check all caps in the signal path, and replace with film caps if necessary. I have had equipment of that vintage, and they still worked, but electrolytics do dry out, and those are quite old by now. Re-capping is cheap.
Microbe, got back a Sherwood S-7210 receiver which had been gifted to a friend 14 years ago; who moved from Nevada City to Hope, Alaska. Had a bad hum, so stock 2,200 uF axial power caps were replaced with radial Nichicon 6,800 uF @ 35 volt caps. Along with replacing blocking cap with 6,800 uF @ 35 volts also. Hum alleviated. Were it being utilized for main system duty, rather than garage duty, would probably have done further updates. As is, sounds delightful through four decade auld Utah Cadence speakers. BTW, wooden cover is a bear to remove, which will no doubt give your tech consternation. ... 73s para Sactown
Best advice I could give is to keep using it but don't let it sit unused too long. I think the old electrolytics are much more likely to stay in shape with regular use. I had an S-7100 that sat for 10 years and went pow when I tried to use it again!
I think I have a Sam's on the S-7300 I could scan if you need it.
that's so you don't have to pack it up and ship. it. Ship it only if no one is in your area.
2nd - have someone look it over to check it and give you any recommendations
then take it from there
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