[Jukebox-list] Scope for Wurlitzer Amplifiers?

Hello, Is this a suitable scope to troubleshoot Wurlitzer amplifiers? Would a signal injector be required as well? https://www.amazon.com/Oscilloscope-Persistence-Measurement-Bandwidth-Genera... I have only done a few basic repairs and servicing, so am still a novice. If it can be helpful, would appreciate early response; there is time constraint to ask a friend to assist with the purchase. Many thanks 🙏 SHANKAR SINGH