American Top 40 with Casey Kasem aired on radio from July 4, 1970 until August 6, 1988. This rebroadcast is one of many I have recorded from internet radio. A few are incomplete but most are not and I hope you enjoy these as much as I do.
In this broadcast:

There is a debut song by a threesome in this countdown that has hit number one three times and each hit stayed at number one for at least three weeks (and one was titled "Knock Three Times").

Casey answers the question, "Has there ever been a weekly survey where all ten of the top ten positions were occupied by British artists?"

Casey tells of one artist in the countdown who one summer hosted a television show, and the premise of the show was that no one had ever heard of him!

Casey answers the question, "What single in the rock era has sold the most copies?"

The Captain And Tennille are in the number one position. This week they accomplish something that hasn't been done in the previous two years. Casey gives the details.

One artist in the countdown swallowed a humming-bird as a child.

Sorry for the few seconds missing from numbers 14, 20, and 33. I usually record three broadcasts of the same show so I don't miss anything, but this time I only got one.

40: Sweet Emotion - Aerosmith
39: Just A Little Bit Of You - Michael Jackson
38: At Seventeen - Janis Ian
37: Thank God I'm A Country Boy - John Denver
36: Fight The Power - The Isley Brothers
35: Spirit Of The Boogie - Kool & The Gang
34: 'Morning Beautiful - Tony Orlando & Dawn
33: Take Me In Your Arms - Doobie Brothers
32: Disco Queen - Hot Chocolate
31: It's All Down To Goodnight Vienna - Ringo Starr
30: Cut The Cake - The Average White Band
29: Sister Goldenhair - America
28: Slippery When Wet - The Commodores
27: Hey You - Bachman Turner Overdrive
26: Every Time You Touch Me - Charley Rich
25: Someone Saved My Life Tonight - Elton John
24: Get Down Get Down - Joe Simon
23: Only Women - Alice Cooper
22: Jive Talkin' - The Bee Gees
21: Rockford Files - Mike Post
20: Rhinestone Cowboy - Glen Campbell
19: I'm On Fire - Dwight Twilley Band
18: I'm Not Lisa - Jessie Coulter
17: Why Can't We Be Friends - War
16: Dynamite - Bazooka
15: Midnight Blue - Melissa Manchester
14: Misty - Ray Stevens
13: The Way We Were - Gladys Knight & The Pips
12: Love Won't Let Me Wait - Major Harris
11: Rockin' Chair - Gwenne Mcrae
10: I'm Not In Love - 10cc
9: When Will I Be Loved - Linda Ronstadt
8: Swearing To God - Frankie Valli
7: One Of These Nights - Eagles
6: Please Mr. Please - Olivia Newton-John
5: Magic - Pilot
4: Wildfire - Michael Murphy
3: Listen To What The Man Said - Paul McCartney And Wings
2: The Hustle - Van McCoy
1: Love Will Keep Us Together - The Captain And Tennille