Hello All, Recently, I came across a part that have Collins part No. among NOS parts I bought from a seller. It looks like an IF can. Could anyone locate what equipment following part is for? 1. Description on the box Transformer, Variable RF OSC Date PKD: 5-53 Collins part No. :504-9489-003 2. Description on the part 9.0 - 9.6 MC 504-9489-003 Your help would be appreciated. Osamu Hazawa Osamu Hazawa