#147

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Another radio from the CB Radio Bonanza set, a very good condition President Grant (PC-409 PCB), which I have played with many years ago, has a variable power, NZ/FCC band, and FM !
This shows me improving/removing some of the mods, and restoring the NB/ANL circuit back to original.
I didn't completely finish the radio, as I am getting some PCB's made, once they arrive I will continue the improvements in another video.
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Some Of My Electronics Tools (video and purchase links)
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Boonton
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4220.
8210: defs.link/?u=e1eddc
Fluke
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8842A:
45: defs.link/?u=eac51d
343A: defs.link/?u=13c93d
5200A: defs.link/?u=a43c99
540B: defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
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4261A: defs.link/?u=07ed95
5005A.
5342A 18GHz: defs.link/?u=5f7513
6181B: defs.link/?u=b12aef
8012B: defs.link/?u=ca5764
8648B: defs.link/?u=da52a3
8901B: defs.link/?u=535835
DSOX1102G: defs.link/?u=a68d39 defs.link/?u=12d498
E3646A: defs.link/?u=128f4a
Marconi
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2022D.
2955.
TF2103: defs.link/?u=61baaa
Rohde & Schwarz
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SMY: defs.link/?u=93514b
CMU200: defs.link/?u=8ccd72
Polarad SPN: defs.link/?u=2ead82
Siglent
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SDM3065X: defs.link/?u=1ed0fe defs.link/?u=12d498
SDS2102 (hacked to 340MHz): defs.link/?u=1ed0fe defs.link/?u=12d498
SPL-1008.
SDP1168X: defs.link/?u=1ed0fe defs.link/?u=12d498
SDL1020X-E: defs.link/?u=a0eccb
Other Equipment
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KSGER T12 Soldering Iron: defs.link/?u=620ace defs.link/?u=5c112e
Quick 861DW: defs.link/?u=138c0f defs.link/?u=a3fc81
S-993A: defs.link/?u=079677 defs.link/?u=e855a0
EEVBlog BM235: defs.link/?u=12d498
YR1030 Battery ESR: defs.link/?u=c56527
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: defs.link/?u=8eeeba
Bird 43: defs.link/?u=4b18f7
Sinadder 3: defs.link/?u=2bf1dd
Audio Control SA-3050A RTA: defs.link/?u=a04df2
Korad KA3305D: defs.link/?u=69090a
PDVS2mini: defs.link/?u=869ba4
Valhalla 2703: defs.link/?u=06bcfc
Feeltech FY6800: defs.link/?u=8b98cd defs.link/?u=34d101
Eakins Microscope: defs.link/?u=b0278b defs.link/?u=262327
Mustool G600: defs.link/?u=b8bc26 defs.link/?u=33f0aa
Handheld Equipment
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Uni-T UT210E: defs.link/?u=391ce3 defs.link/?u=ea4edc
DER DE-5000: defs.link/?u=0d9160 defs.link/?u=12d498
MK-328: defs.link/?u=0d9160 defs.link/?u=739ee7
MESR-100: defs.link/?u=0d9160 defs.link/?u=009419
ESR Meter: defs.link/?u=0d9160
HOPI: defs.link/?u=7fab55
PeakMeter PM6252: defs.link/?u=59ef66
HS1010: defs.link/?u=10c699
Thermal Camera: defs.link/?u=280cca defs.link/?u=4a2256

[@Mark19960]

Funny you bring up the FM board. Me and Mike were talking about them for a good while. Those were originally added to some European radios... the Stalker 20 is one we were talking about. I bought one off ebay just yesterday.

[@TheDefpom]

Mark19960 - that is a coincidence, was it the same PCB?

[@Mark19960]

No, a variant of the one you have. Mike actually has several of them. I wanted to add FM + split frequencies to one of my radios that I converted to 10 meters so I can talk on the local repeaters when he told me about these boards. Just need to look around for a modern FM demod that does not need a tank coil. Would like to avoid the inductor if possible.

[@Scott-K7sce]

i have the superstar version of this radio that has am/fm/usb/lsb. havent used it in a long time, been using my 148gtl

[@dustinduckwiler9786]

I have one of these I was replacing caps in and c175 has a 1000 10v cap. The schematic says it should be a 470uf. Did someone maybe change it for some reason?

[@TheDefpom]

possibly, a larger one there would be fine, and probably a good idea.

[@dustinduckwiler9786]

Ok thanks

[@andrescaneo319]

su gato debe ser muy mal genio!!

[@paulmin9426]

Hi there. I've got a Uniden Grant pc-409ac. My question is what are the 2 components/part numbers that are on rear of frame between c2166 and c1969. They both have 2 wires coming from them. I ask this as 1 of mine the wire has broken off. Any help greatly appreciated. Cheers, Paul.

[@TheDefpom]

Paul Min - those are MV1Y diodes, they sense temperature and compensate for overheating. You can replace with a silicon diode like a 1N4148