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#1
10-09-2019, 08:25 AM
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What's the Date of this AM/FM?
I have this AM/FM radio in my parts stash and was wondering what the date of this particular radio is?
Thanks, Dennis |
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#2
10-09-2019, 08:50 AM
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22AFM2
2=1972 2 = Pontiac A = Midsized: Tempest FM = AM/FM w/Stereo 2 = RUNNING CHANGE OR REVISION
__________________
1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey 1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles 2017 Sierra SLT 1500 Z71 4X4  2019 Canyon SLT Crew 4X4  
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#3
10-09-2019, 08:57 AM
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It’s hard to tell on my phone, but the part number looks like 22AFM2 which would be 1972 (2), Pontiac (2), Lemans/GTO (A), AM/FM (FM), I think the last “2” indicates non stereo (no red dot) with fader, but that might not be correct.
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#4
10-09-2019, 09:45 AM
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Thanks 77 Canamman & GTO_6970! I think it is a mono radio...I didn't check to see if it had the red indicator in the FM dial.
Dennis |
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#5
10-09-2019, 10:01 AM
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Sticker shows FM= stereo. '71 & 72 stereo will have two power transistors on the big heat sink.
FM mono use the small heat sink with one power transistor.
__________________
Buzzards gotta eat... same as worms. |
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#6
10-09-2019, 10:27 AM
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FP is mono
__________________
1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey 1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles 2017 Sierra SLT 1500 Z71 4X4 2019 Canyon SLT Crew 4X4
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#7
10-09-2019, 10:35 AM
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OK, so 'xxFMx' is stereo. Thanks for the education 77Canamman & OPH!
Is there a date of mfg. in there somewhere as well? Dennis |
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#8
10-09-2019, 02:01 PM
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Quote:
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#9
10-09-2019, 02:12 PM
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Quote:
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#10
10-09-2019, 02:13 PM
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77 Canamman's Avatar
77 Canamman 77 Canamman is offline Ultimate Warrior Join Date: Aug 2006 Location: NY Posts: 3,492 Default 22AFM2 2=1972 2 = Pontiac A = Midsized: Tempest FM = AM/FM w/Stereo 2 = RUNNING CHANGE OR REVISION |
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#11
10-09-2019, 11:56 PM
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Nicely stashed!!
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#12
10-10-2019, 01:21 PM
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Quote:
Dennis |
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#13
10-10-2019, 07:37 PM
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http://cgi.ebay.com/ebaymotors/ws/eB...m=333030951193
If you look at this auction, photo #8 shows the back. There is a disc with inked DELCO GM DS-501 and a 4 digit number (7538 in this case) and reads year and week (as you can see, it did not originate in a '74).
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So long, farewell. |
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#14
10-10-2019, 07:49 PM
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The disc is an output transistor.
Regarding the date code on the DS-501 transistors: The first number(s) indicates the production year. The second pair is the week. Production before the 30th week would be used in the year stamped. Production after the 31st week is for the next production year . In the middle, it could go either way. 7538 would indicate 38th week 1975 for 1976 production. These are easy to swap, so it's not a definitive indication of the radios production date. 
__________________
1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey 1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles 2017 Sierra SLT 1500 Z71 4X4 2019 Canyon SLT Crew 4X4
Last edited by 77 Canamman; 10-10-2019 at 07:57 PM. |
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#15
10-14-2019, 06:46 AM
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Thanks all for your input, help, and the radio education! This board is the best!
Dennis |
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