Sure, why not? Just be careful screws don't get in the way of electronics.
Listen to the same track before and after and see if you spot a difference in sound quality. I had one of these units once and it served me well in rented digs. If the tubes are old, especially the EL84s, you could try a fresh set of tubes from here: https://www.tubedepot.com/t/tubes/power-tubes/el84-6bq5-7189
Listen to the same track before and after and see if you spot a difference in sound quality. I had one of these units once and it served me well in rented digs. If the tubes are old, especially the EL84s, you could try a fresh set of tubes from here: https://www.tubedepot.com/t/tubes/power-tubes/el84-6bq5-7189