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03-29-2012, 03:36 AM | #1 |
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Original AM Radio Question
I recently bought a 69 CST and a 70 CST with the original AM Radio in both. The trucks are 98% original and both have antennas on them. When I turn the radios on the I get nothing, not even static, but the lights on the number bar still work. Is there an inherant problem with these radios when they get old like these. Now I'm dating myself here but these radios don't have tubes, right?
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
03-29-2012, 04:00 AM | #2 |
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Re: Original AM Radio Question
Just had my cover off to install ipod input jack and didn't see any tubes at all.
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Kerry My build thread. http://67-72chevytrucks.com/vboard/s....php?p=3657823 1971 Chev SWB with 68 nose, 6.2 diesel th350, and 3.73 rear gears 1988 Chev Extendacab 2010 Honda VT1300CS Sabre 2005 Buick Rendezvous wife's ride |
03-29-2012, 04:20 AM | #3 |
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Re: Original AM Radio Question
Thanks for the tip and thats a good thing, no tubes !!!
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
03-29-2012, 04:22 AM | #4 |
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Re: Original AM Radio Question
Did you check the speaker and all the wiring to it?
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Kerry My build thread. http://67-72chevytrucks.com/vboard/s....php?p=3657823 1971 Chev SWB with 68 nose, 6.2 diesel th350, and 3.73 rear gears 1988 Chev Extendacab 2010 Honda VT1300CS Sabre 2005 Buick Rendezvous wife's ride Last edited by chevy88; 03-29-2012 at 04:29 AM. |
03-29-2012, 05:29 AM | #5 |
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Re: Original AM Radio Question
No, I haven't checked anything yet. Its just strange to me that the same type radios in 2 different trucks from the same era both dont work. I;m just wondering if there is a common problem with these radios as I see working ones go for pretty big money.
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
03-29-2012, 07:09 AM | #6 |
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Re: Original AM Radio Question
check speaker wire and also check to see that the case is well grounded and that the antenna is pluged into it
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03-29-2012, 09:12 AM | #7 |
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Re: Original AM Radio Question
Antennas can go bad. I would suggest plugging in another antenna as a test.
Jim
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03-29-2012, 10:37 AM | #8 |
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Re: Original AM Radio Question
-
I have found that the biggest problem is the speakers go bad... LockDoc
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03-29-2012, 12:29 PM | #9 | |
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Re: Original AM Radio Question
Quote:
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03-29-2012, 01:39 PM | #10 |
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Re: Original AM Radio Question
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03-29-2012, 09:39 PM | #11 |
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Re: Original AM Radio Question
Do not leave the radio on for very long with a bad speaker or no speaker plugged in. You may burn up the output stage by doing so.
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03-29-2012, 10:36 PM | #12 |
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Re: Original AM Radio Question
first, no tubes, I think tube car radios were fazed out in the early 60s
second, I agree completely with checking your speaker, thats the typical reason a stereo that is 10 years old goes bad, let alone one that is 40plus. I'd check the speaker (meter it, should be 8ohms) or just look at it, if its all dry rotted and fallin apart, then toss it. I'd check your antenna next, then I'd have a look at the volume potentiometer in the radio itself, they tend to get gummed up over the years and get fussy, alittle contact cleaner or tuner cleaner will take care of them as well, usually :P |
03-29-2012, 11:01 PM | #13 |
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Re: Original AM Radio Question
Thanks for all the help. It sounds like it could be one or more of any number of things so I guess when it warms up a bit here I'll yank the radio and see what I have. I guess I will only have to deal with the 69 CST because I sold the 70 CST today and the purchaser is aware the radio is not working and is okay with that.
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
03-29-2012, 11:03 PM | #14 |
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Re: Original AM Radio Question
I'm no expert. However I only have experience with my truck (for 42 years). My 1st AM radio wasn't worth a "darn" since new. I improved it somewhat by adjusting the trim screw behind the station knob. It still only picked up a couple stations when I wasn't in a metropolitan area. I decided to try a new original antenna. No change. I bought another AM radio out of a junked truck sometime in the late 70s. Same thing, only 1 or 2 stations when in a somewhat remote area. All this was done when the truck was less than 10 years old. Now that I'm redoing the truck I found a van AM/FM in the junkyard for $15.00. I tried it before disassembling my truck and it works great on FM but is still weak, but better, on AM. The speaker is still the original, but I did get a fixed mast AM/FM antenna (mast only) out of an 80s Dodge, screwed a 1/4" stud into it and screwed the assembly into the original antenna base. The added bonus of the van radio I got was that it had a factory wire and fader for an original GM 6X9 rear speaker. I can now also play music wirelessly through my Garmin that has a built in transmitter.
In populated areas with closer stations the 2 AM radios I've had are only OK. How remote is the area where you live? Last edited by FirstOwner69; 03-29-2012 at 11:19 PM. |
03-29-2012, 11:51 PM | #15 | |
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Re: Original AM Radio Question
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
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03-30-2012, 12:01 AM | #16 | |
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Re: Original AM Radio Question
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