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  1. Tolteca

    Cobra 148 low volume and modulation

    Hey guys, This is the same 148 I was dealing with in the other thread but I decided to focus that thread specifically on the frequency mod. I've had this 148 for a while now and despite having aligned it and it being an overall good performer the one issue I never took care of was the low...
  2. Tolteca

    L21 Frequency mod for MB8719

    Hello all, Back at it again. There seems to be little talk about this modification. This is a strange mod in which you place a variable resistor from L21 to PIN 10 of the MB8719 to achieve a 128 upward channel shift which is amazing compared to the usual 64 upward shift you get from simply...
  3. Tolteca

    Cobra 200 DX No power output

    Hello all, Back with another project, unfortunately my last stomper projects ended up getting picked up before I could figure them out. I'm hoping this time around I have a bit more of a casual fault and not such a head scratcher. I have 2 Cobra 200 DX radios, in almost mint condition. The...
  4. Tolteca

    Galaxy DX2517 10.240Mhz osc off frequency

    Hello all, It seems lately I get nothing but strange cases and I can't catch a break with a routine alignment. This time around I have a Galaxy DX2517 base station. Problem with this one is that for some reason the 10.240Mhz oscillator is off frequency by about 1khz. Basically when I go...
  5. Tolteca

    Cobra 148GTL This issue has me stumped

    Hey guys, I have an interesting one for you. I've never gotten a radio with this fault before and frankly it's driving me nuts. I have a Cobra 148 that after aligning everything, side band is always still 1.5khz off frequency. When I put it on LSB I have to turn the clarifier about 15% low...