This is information to try to figure out how many of these receivers were
produced
(or at least how many made it out as surplus)
| ID plate at bottom right front of rack 3 |
ID plate at bottom lip of each module |
ID plate at bottom left front of each rack |
xx = unreadable or missing ID tag
AN/FRR-24 Triple Diversity HF Receiver - Contract NObsr-39402 |
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| Item | Use | Rack # | K4NYW s/n |
KN4R s/n | AWA s/n |
Notes |
| AN/FRR-24 | receiver | all | 21 | -- | 26 | - |
| CY-860 | cabinet | 1 2 3 4 | 83 66 10 8 xx | 1 | ?? | - |
| SB-142 | bandswitch | 1 2 3 | 83 75 67 55 28 15 x6 | 50 | 52 | - |
| AM-450 | 2-4mc RF | 1 2 3 | 81 79 65 60 56 38 17 | 66 | 78 | - |
| AM-451 | 4-8mc RF | 1 2 3 | 79 59 43 36 24 18 17 3 xx | -- | 62 | - |
| AM-452 | 16-32mc RF | 1 2 3 | 52 30 27 17 15 | 82 | 55 | - |
| AM-453 | 8-18mc RF | 1 2 3 | 79 66 63 54 41 27 18 | 66 | 80 | - |
| CV-126 | 2nd converter | 1 2 3 | 75 55 53 29 20 18 | 1 | 68 | - |
| AM-439 | monitor/detector | 1 2 3 | 79 69 34 30 16 | 54 | 65 | - |
| AM-454 | 50kc IF amp | 1 2 3 | 65 62 55 54 39 13 | 55 | 54 | - |
| F-99 | IF filters | 1 2 3 | 81 69 48 41 40 36 32 23 | -- | 60 | - |
| PP-590 | power supply | 1 2 3 | 59 37 xx xx | 32 | 64 | - |
| SB-138 | patch panel | 1 | -- | -- | - | - |
| SB-140 | patch panel | 2 | 6 | -- | - | - |
| SB-169 | patch panel | 3 | 26 20 13 5 | -- | - | - |
| drawer | toolbox | 1 | -- | -- | - | - |
| O-131 | oscillator | 2 | 5 11 | 23 | - | - |
| SB-141 | AC power | 3 | xx | -- | 12 | - |
| AM-440 | detector | 4 4 | 43 36 23 18 17? 12 | 16 | - | - |
| AM-438 | detector | 4 | 27 19 15 1 | -- | - | - |
| CV-127 | FSK converter | 4 4 4 | 81 61 33 27 25 23 3 | -- | - | - |
| KY-62 | keyer | 4 4 4 | 75 68 67 61 59 57 55 31 19 3 | 28 6 | - | - |
| SB-143 | patch panel | 4 | -- | -- | - | - |
| CM-32 | comparator | 4 | 25 17 14 | 21 | - | - |
| PP-648 | power supply | 4 | 9 2 | -- | - | - |
| PP-649 | power supply | 4 | 18 | -- | - | - |
AN/FRR-37 Triple Diversity HF Receiver - Contract NObsr-57388 |
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| Item | Use | Rack # | K4NYW s/n | KN4R s/n | Notes |
| AN/FRR-37 | receiver | all | - | -- | ID plate at top of rack 4 |
| CY-1377 | cabinet | 2 3 4 | xx xx | - | - |
| SB-142A | bandswitch | 2 3 | 19 15 | 43 | - |
| AM-450A | 2-4mc RF | 2 3 | 7 2 | 30 | - |
| AM-451A | 4-8mc RF | 2 3 | 11 6 | 29 | - |
| AM-452A | 16-32mc RF | 2 3 | 25 7 | - | - |
| AM-453A | 8-18mc RF | 2 3 | 25 23 | 42 | - |
| CV-126A | 2nd converter | 2 3 | 10 5 | 30 | - |
| AM-439A | monitor/detector | 2 3 | 10 3 | 39 | - |
| AM-454A | 50kc IF | 2 3 | 12 11 | 39 | - |
| F-207 | IF filters | 2 3 | 9 4 | 29 | - |
| PP-590A | power supply | 2 3 | xx xx | 3 2 | - |
| SB-282 | patch panel | 2 | 1 | -- | - |
| SB-283 | patch panel | 3 | 2 | 20 | - |
| drawer | toolbox | 4 | - | -- | - |
| O-131A | oscillator | 2 | 13 | 27 | - |
| SB-280 | AC power | 3 | 4 | -- | - |
| AM-440A | detector | 4 | - | - | - |
| AM-438A | detector | 4 | - | -- | - |
| CV-127A | FSK converter | 4 4 | - | -- | - |
| KY-62A | keyer | 4 4 | - | - | - |
| SB-281 | patch panel | 4 | xx | -- | - |
| CM-32A | comparator | 4 | - | - | - |
| PP-913 | power supply | 4 | - | -- | - |
| PP-912 | power supply | 4 | - | -- | - |
AN/FRR-43 Triple Diversity HF Receiver - Contract NObsr-57572 |
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| Item | Use | Rack # | K4NYW s/n | Notes |
| AN/FRR-43 | receiver | 1 | - | -- |
| CY-1377 | cabinet | 1 2 3 | - | - |
| AM-857 | detector | 1 2 3 | 8 | - |
| AM-858 | IF amp | 1 2 3 | 4 | - |