I just got a Heathkit CB-1 CB that looks just like an old tin lunchbox. It does transmit but I do think it may need some receive help. I still need to check the tubes to be sure that they are all ok. It also does have 1 single crystal , But it has a tune knob for 23 channels. I do not know if the tune knob is only for receive. I was wondering if anyone has an instruction manual for this oldie but a goodie. Please let me know.
If you want the original Heathkit manual, you will probably have to buy it. Just Google for "Heathkit manuals". If you just want to get the radio working, check out CB Tricks Click Here for Sam's Photofact info.