Sanyo St 28d -

The permalloy heads wear over time. If you see a visible groove worn into the head where the tape passes, the high-frequency response will be permanently degraded. Always inspect the head before purchase. Additionally, the deck should be demagnetized annually with a handheld demagnetizer.

The "ST" in ST-28D stands for "Sanyo Transistor." This model utilizes a discrete component design (before the widespread adoption of integrated circuits). This is a crucial detail for audio purists. Discrete transistor circuits are known for a warmer, more natural sound compared to the sometimes sterile audio of early IC-based radios. sanyo st 28d

One of the most striking features is the speaker grill. Unlike the perforated metal sheets found on cheaper models, the ST-28D often featured a molded plastic or metal grill with geometric patterns. This wasn't just for protection; it was an aesthetic statement that gave the radio a premium look. The horizontal orientation of the grill slots often created a sense of width, suggesting a broader soundstage. The permalloy heads wear over time