My father recently passed away and before he died he gave me his very old gibson elcdtric guitar and Masco amplifier, MAP 15, serial no. 255379. I am having a lot of trouble finding out about the amp. I could use any info anyone might have on it. Thanks.

Hey, I recently was at my grandmothers house and found the same amplifier. My grandpa baught it used in 1950. It would be great if we could share information with eachother. I don't know too much other than its obviously a tube amp and aparently it is a good harp amp. I think I am going to try getting it to work and hook it up with my mark I rhodes.