H
Hook948
Guest
Anyone have or had one? Whats your opinion? I found a pretty simple mod for the AGC for SSB reception, Anyone try it?.................The R-390A was developed in 1951 by Collins . It is also a double / triple conversion superheterodine receiver and covers the same frequencies (from 0.5 to 32MHz). It also uses a mechanical digital dial, has a PTO and supports AM and CW modes.The IFs are 17.5 to 25MHz (only for 0.5 to 8MHz), 2.5 to 2MHz (0.5 to 1MHz band only), 3 to 2MHz and 455KHz. It has one crystal (for 0.1 and 1KHz bandwidths) and four mechanical (for 2, 4, 8 and 16KHz bandwidths) filters at 455KHz IF. It has 26 tubes.
Hot Rod Lincoln -Dancing around the World ! ...... CDX948 Central Texas, - Hook948@hotmail.com</p>