#152 Cobra 148GTL CB Radio Assessment and Restoration
Remember to subscribe ! Give this a Thumbs Up if you like it, it helps to grow the channel. I purchased this from eBay, had channel mods, worked OK, I just had to restore it to factory condition. The radio had pin 10 tied to the Fin pin through a switch to give it the +128 channels, so I decided to investigate this modification and try to understand why it works, and also clear up why there are various versions of this modification which all work, just in different ways. Analysis of PLL mod here: • #151 MB8719 Experiments and Tri State... Please help to support me so I can continue making more repair videos: PayPal Donations: [email protected] Patreon: / thedefpom #ifixstuff #thedefpom #electronicsrepair TheDefpom Merchandise: https://teespring.com/stores/thedefpom ========================================== Some Of My Electronics Tools (video and purchase links) ========================================== Boonton ------ 4220. 8210: https://defs.link/?u=e1eddc Fluke ------ 8842A: 45: https://defs.link/?u=eac51d 343A: https://defs.link/?u=13c93d 5200A: https://defs.link/?u=a43c99 540B: https://defs.link/?u=0c6bd9 893A. A90. HP/Agilent/Keysight ------ 4261A: https://defs.link/?u=07ed95 5005A. 5342A 18GHz: https://defs.link/?u=5f7513 6181B: https://defs.link/?u=b12aef 8012B: https://defs.link/?u=ca5764 8648B: https://defs.link/?u=da52a3 8901B: https://defs.link/?u=535835 DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498 E3646A: https://defs.link/?u=128f4a Marconi ------ 2022D. 2955. TF2103: https://defs.link/?u=61baaa Rohde & Schwarz ------ SMY: https://defs.link/?u=93514b CMU200: https://defs.link/?u=8ccd72 Polarad SPN: https://defs.link/?u=2ead82 Siglent ------ SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498 SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498 SPL-1008. SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498 SDL1020X-E: https://defs.link/?u=a0eccb Other Equipment ------ KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81 S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0 EEVBlog BM235: https://defs.link/?u=12d498 YR1030 Battery ESR: https://defs.link/?u=c56527 Heathkit IT-12 Signal Tracer. Racal Dana 1992: https://defs.link/?u=8eeeba Bird 43: https://defs.link/?u=4b18f7 Sinadder 3: https://defs.link/?u=2bf1dd Audio Control SA-3050A RTA: https://defs.link/?u=a04df2 Korad KA3305D: https://defs.link/?u=69090a PDVS2mini: https://defs.link/?u=869ba4 Valhalla 2703: https://defs.link/?u=06bcfc Feeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101 Eakins Microscope: https://defs.link/?u=b0278b https://defs.link/?u=262327 Mustool G600: https://defs.link/?u=b8bc26 https://defs.link/?u=33f0aa Handheld Equipment ------ Uni-T UT210E: https://defs.link/?u=391ce3 https://defs.link/?u=ea4edc DER DE-5000: https://defs.link/?u=0d9160 https://defs.link/?u=12d498 MK-328: https://defs.link/?u=0d9160 https://defs.link/?u=739ee7 MESR-100: https://defs.link/?u=0d9160 https://defs.link/?u=009419 ESR Meter: https://defs.link/?u=0d9160 HOPI: https://defs.link/?u=7fab55 PeakMeter PM6252: https://defs.link/?u=59ef66 HS1010: https://defs.link/?u=10c699 Thermal Camera: https://defs.link/?u=280cca https://defs.link/?u=4a2256