Hello,
I have a Cobra CAM 88 which is a simple 23 ch AM tube radio with equally simple alignment instructions. This alignment seem perfect for a first time attempt. There are really only a few steps each for the RX and the TX on this radio. I just recaped it after not using it for nearly 30 years and it appears to be RX & TX as it did when I last used it in the early 90s. I hope I have the necessary equipment to do at least a moderate alignment, but need some advice/assistance on how. The second half (for the TX) seem pretty strait forward, but the Receive alignment is what I am not sure about. For RX, it looks like I'm just injecting signal at a pin of a tube, then another tube, then the antenna jack and making my adjustments along the way. But what signal?
I have a B&K 2040 Cb Signal Generator. I read that the 475KC first called for here isn't really a standard used on most CBs, and the only way I see to change the frequency is the regular 40 channel dial on the generator. 27Mhz is far from 475KC. I am guessing this means I can't dial up 475KC with the B&K 2040 (or 7.5MC)?
I also have a frequ. counter, scope (though I'm not fluent using it), Bird watt meter, dummy load, B&K 1040 Service Master. Admittedly, I don't have any experience with the BK CB servicemaster/Sig Gen., but I do have a fair amount of basic electronics knowledge and I am great with direction. Any guidance on doing this?
I have a Cobra CAM 88 which is a simple 23 ch AM tube radio with equally simple alignment instructions. This alignment seem perfect for a first time attempt. There are really only a few steps each for the RX and the TX on this radio. I just recaped it after not using it for nearly 30 years and it appears to be RX & TX as it did when I last used it in the early 90s. I hope I have the necessary equipment to do at least a moderate alignment, but need some advice/assistance on how. The second half (for the TX) seem pretty strait forward, but the Receive alignment is what I am not sure about. For RX, it looks like I'm just injecting signal at a pin of a tube, then another tube, then the antenna jack and making my adjustments along the way. But what signal?
I have a B&K 2040 Cb Signal Generator. I read that the 475KC first called for here isn't really a standard used on most CBs, and the only way I see to change the frequency is the regular 40 channel dial on the generator. 27Mhz is far from 475KC. I am guessing this means I can't dial up 475KC with the B&K 2040 (or 7.5MC)?
I also have a frequ. counter, scope (though I'm not fluent using it), Bird watt meter, dummy load, B&K 1040 Service Master. Admittedly, I don't have any experience with the BK CB servicemaster/Sig Gen., but I do have a fair amount of basic electronics knowledge and I am great with direction. Any guidance on doing this?
