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magic fingers

Michigan

New Member
I have a question about a Pioneer SX-780.

I checked one out that a guy was selling on Craigslist for 175 Firm.
It appeared to be functioning correctly, but when the tuner was on (FM) and I touched the top or back of the unit, the reception would cut out for a second or two. Actually, I could hold my hand about 4 inches away from the receiver and it would cut out momentarily also.

Is this normal? Anxiously awaiting any replies. I've been looking for an older receiver for a while and everything is always and hour+ drive.

-Michigan
 
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Welcome to AK.
Definitely not normal but probably not a big problem. What kind of antenna was connected? Did it do that regardless of the station it was tuned to? What was the signal meter showing?
 
I didn't change stations. It looked (in my amateur eyes) like the antenna had probably been replaced or worked on. I saw different color wires (red and yellow at least) coming out the back attached to the antenna. That seemed a little odd for some reason. The antenna itself looked like black plastic and I felt like it was not the typical part I had seen in pics. That is what that long rod on the back of those older receivers is, right? There were no external antennas hooked up to the screws in the back.

I will say that when the station came in it was LOUD! He had the volume turned about quarter way when testing the turntable (I didn't notice any static, but sound was "ok" more or less with a turntable. He was playing through some less than stellar Sony speakers.) When he switched to FM and tuned in a station it was crazy loud and made me jump. He had to put the volume to barely on, like maybe 10 degrees. I don't know if this s good or bad or what it says for the unit, but I thought I'd mention it.


I am 100% amateur and have never had the bravery to buy older units before, so I am unsure how to ascertain what "worth" is in dollar terms. I remember my grandfather always bringing me old receivers (from the 60's and 70's) and tape decks, etc. that he found in the trash back in the 80's. At the time I didn't appreciate them for what they were because I wanted the newer digital "cool" looking stuff they had at the electronics store. I now regret donating those pieces to the goodwill when I was a kid. I am trying to put together systems for my older kids to play vinyl on.

That said, is 175 an average price? If the original antenna had been replaced, is that a drawback? There are so few receivers for sale around here, I'm unsure how to cross reference. The front plate looks fine, minus one small nick on the top and the wood case had a little veneer peeling. I want my daughter to have a nice receiver to start with so she can appreciate the art of those units from the 70's.

Thanks to all of those experts who take the time to respond. Is there any way to donate or contribute on this forum? I come across other electronics all the time here in our college town. Kids throw away stuff like mad when they move out (except for the receiver I'm looking for unfortunately. I wouldn't mind "donating" pieces I find to save them from going in the trash, if someone wanted to pay shipping and I knew what they wanted.

-Michigan
 
Oh, also, what would I look for with the meters? If I remember right, they dropped down when I put my hand near, and spiked back up when the station came back on.
 
"If the original antenna had been replaced"

The AM antenna? If so, my next question, do you listen to AM? What kind of FM antenna, if any, was used? As I said earlier, bring a dipole. If you don't have one. Best Buy or PC Richards or any audio or home theater outlet will sell dipoles. You can orient it for best reception. Considering the $175 cost, the dipole is merely pennies on the $

. For home use, dipoles are pretty much @ the bottom of the food chain. We can address that if & when you get the Pioneer home
 
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Yes the color wires and black plastic tube is the AM antenna. There is no FM antenna. You have to hook one up.
 
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