I've been revisiting my old IC-730 which has been sitting idle for a couple of years. As expected the pre-amp relay was acting up again. Bypass was ok but preamp on function was defunct. I was able to cut a slip of paper and get it into the contacts. Fortunately the upper contacts were the faulty ones. If it were the lower (bypass) contacts then this repair wouldn't be very much fun. Lo and behold I got it working again. In years past I remember it being said that this relay was unobtainable and I've been parroting that all along. Times have changed. RF Parts has it for 10.95 and I saw one on ebay. It appears that it isn't difficult to find anymore. P/n is 221D012.