Solid State Guitar Amp Forum | DIY Guitar Amplifiers

I am currently working on an old Acoustic 450 amplifier. I narrowed the problem down to a blown PNP predriver transistor. The model number is 480041. I cannot find any information on this transistor. What would be a good substitute? Thanks.

Acoustic 470 or 450?

Is this one of those transistors that looks like a TO-5 welded to a small heatsink ?

https://www.ebay.com/itm/364778815801?_skw=40409+transistor&itmmeta=01JT2DBRD9SAA9TZ9G682QKNNS&hash=item54ee830139:g:qXsAAOSwxj5l7SZo&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1ebO2I4P7B0y9cqe%2FLpuc%2Bcnd4BcCLtZN5aDO3gCTpR4j2Ux3uXDH%2FqkdI41qdvCdP7JuQwV7hz%2F1EnMO%2FJzzCaRnfkXHRkL1eRogNyyy3RDCu8EnNiZ3eK502CevyOHC6OLfQMxihEPEFIFiH9gAuzevo4y5AsbW%2FlRe9ZSgTfo0QHfFea29kNXL4m7n2NTNK9avTWxRByjIPHnmdu4%2FIjO5yJ6u4FCDPBPxezVT8ggb35hV1igphYxuPOTY0iE--sLBXmHuTQa9R%2Fjnm88p%2FOaxLeXtlppPy2WdJ2%2FSsg7g%3D%3D%7Ctkp%3ABk9SR96Gr83QZQ

As far as I know that is the Acoustic number for the 40410.  If you search for that number you will find a lot of posts about different subs people have used. 
The issues are finding something with the same pinout that will physically fit and have a heatsink. 
If you can find a 2N5679, that should be able to work if you reuse the existing heatsink.  Seems like Mouser has stock on them.
Otherwise, something in a TO-126 package can be made to work with the existing heatsink.

This is an old photocopy from my file cabinet. Bad copy but better than nothing I guess.

I de-ciphered and re-typed the list as best as I could and added a few more.

Also here is a list of PC Boards while I'm here.