I just put together the schematic of that Allied A-2530. Note: It looks like they came with Ch 11 Crystals. I think standard walkie talkie crystals will work on the other channels for transmit, but the receive crystal takes a 6 Mhz down from the fundamental. Example: 21.185MHz = Ch19. Unless you special ordered one, that would be a difficult crystal to find. Of course you can always use the tunable receive function in conjunction. That’s the beauty of many early CB’s.Thank you sir, I am very grateful for your kindness.