Persamaan Transistor D998 B778 Install Jun 2026

: These are the most common "upgrades." They are rated for higher power (150W) and higher voltage (230V), making them much more robust than the original D998/B778 pair.

This is the most common "upgrade." They are rated for and 150W (230V), making them much more robust than the original D998/B778. persamaan transistor d998 b778 install

| Posisi | Transistor Asli | Persamaan Paling Cocok | Alternatif Lain | | :--- | :--- | :--- | :--- | | | 2SD998 | 2SC5200 (Toshiba) | NJW0281, 2SC3858, 2SC2922 | | PNP | 2SB778 | 2SA1943 (Toshiba) | NJW0302, 2SA1492, 2SA1216 | : These are the most common "upgrades

He grabbed his multimeter to set the bias. The manual called for a specific millivolt reading across the emitter resistors. With the new transistors, the idle current was a bit low. He twisted the small trimpot on the board, watching the numbers climb on the display until they hit the sweet spot: 15mV. Stable. The manual called for a specific millivolt reading

Before selecting a substitute, the original parameters must be met or exceeded: