![]() ![]() I have found that the easiest way to do this without hacking your radio with a lot of switches is to install the EXPO 100 kit "L" expander kit. Re-tune 元7 and 元8 for maximum AM forward power. L14 peak is about a turn or two up from factory original setting.Ĥ. DO NOT adjust!!! Stretching L12 gets moe output. Internittent audio/modulation: Bad solder joints on pins 1&2 or 2&3 of audio ic.ģ. ![]() No TX/RX with Channel LED lit on RX and then goes out when keyed: Bad /shorted C119.Ģ. Receive on adjacent channel: Bad solder joint to C131 (next to 10.240 crystal).ģ. Weak mic gain: Some raios have a 2SC372 mic amp. "Motorboating": Locate C242(.001)on pin 5 of TA7222 audio ic and move to pin 4 of ic.Ģ. The instructions are the same as the Cobra 25 above,EXCEPT the following:ġ. Remove R123 and replace with a jumper.ĬAUTION!!! I do not know if both of these power mods can be done at the same time!!! Remove final and replace with a 2SC1969 transistor.Ģ. Re-tune L14,L13,L12 for maximum forward power.ġ. OVERMOD: Check for missing or cut D9, missaligned VR5.ģ. Burned R89(15 Ohm 1/2 watt): Replace with a 1 watt.Ģ. LED goes out and NO TX when keyed up: Check C118ġ. NO TX: Check for shorted 33uF(10v) capacitor across C87.Ģ. ![]() Channel display reads all 7's or 8's: Leaky/shorted C104(470uF 10v). Place the two wires from the RF gain control in your mod kit by soldering one wire to each of the 220uF capacitors leads.ġ. Solder in a jumper wire from where you removed the wires on the board. Find the two wires that are attached to the RF gain control, follow them to the PC board and UNSOLDER them.Ģ. You can use different resistor values to get the desired dead-key.ġ. On the solder side of the board, solder the resistor across the 220uF capacitor. In JP6 holes, solder the 220uF capacitor. PARTS NEEDED: 1- 220uF (16 to 25 volt) electrolytic capacitor.ġ- 100 to 200 Ohm resistor. Re-tune coils L10,L9,L8 for maximum forward power. Replace stock final with a 2SC1969 transistor.ĥ. Change R76 (3.3k) to a 1k (located near mike socket)Ĥ. Cobra 148 NW ST CB Radio Peaked and Tuned (Southern Indiana- Brandenbubrg KY Area)Ĭobra 148 NW ST CB Radio Peaked and Tuned For sale a Cobra 148 NW ST CB Radio that has been peaked and tuned for receive and transmit and has swing Kit.The light are like most of this model radio does not light.The Radio`s have been peaked and tuned for receive and transmit. Cobra 148 CB Radio Echo, Peaked and Tuned (Southern Indiana- Brandenbubrg KY Area)Ĭobra 148 CB Radio Echo, Peaked and Tuned For sale a Cobra 148 CB Radio`s.Radio`s have been peaked and tuned for receive and transmit. Cobra 148 CB Radio Peaked and Tuned (Southern Indiana ,Brandenburg KY Area)Ĭobra 148 CB Radio, Peaked and Tuned For sale a Cobra 148 CB Radio`s.Both Radio`s have been peaked and tuned for receive and transmit. Cobra 148 CB Radio With Echo, Peaked and Tuned (Southern Indiana ,Brandenburg KY Area)Ĭobra 148 CB Radio Echo, Peaked and Tuned For sale a 2 Cobra 148 CB Radio`s.I am sell all together a Cobra 148 GTL, and a Cobra 140 GTL, and a Galaxy DX 88 mobile radios the 148 work's it needs to be aligned, and the Cobra 140 needs the same but it works good also, and the Galaxy DX 88 works good and it looks like it is in new shape for the year and condition. Cobra 148 & 140 GTL, Galaxy DX 88 - $250 (East Wareham).The green lights do not work on the sound tracker. Cobra 148 Gtl and Cobra 148 Nt St Cb Radio (Southern Indiana ,Brandenburg KY Area)Ĭobra 148 Gtl and Cobra 148 Nt St Cb RadioSale the Cobra 148 Gtl and Cobra 148 Nt St Cb Radio.The radio has No blemishes, scratches, or marks. done to it with the exception of peaked and tuned. The radio is like new, never been put in service or installed.The radio has not had any mods. I have for sale a Cobra 148 GTL SSB radio. NEW IN BOX COBRA 148 GTL AM & SSB CB RADIO (HOUSTON).
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