Crown TR-800
The TR-800 sports a 3-inch speaker and runs on 6V DC, using 4 x AA batteries. You might also note the Hi-Lo tone switch, which can be seen to the right of the speaker magnet in this photo.
The transistors are made by Hitachi: 2N219 x 2 - HJ62 x 4 - 2N217 x 2 - [1N34A, HV15]
(Note: The top 2N19 has been changed on this unit)