Does anyone know where I can get transistors for a 30 yr old Spectral amp DMA200?

You would think that at Spectral prices they would have kept a supply for future repairs.

They refused to work on it because it is so old. But the 200w of pure class A sounded very good. Spectral doesn’t make pure class A anymore.

you can the VN0120N5  here at the below company, they may have a min..25 pieces in stock. 

Standard radio

631-234-3330

Never heard of the output mosfet devices listed. www.exicon.info, Exicon makes lateral mosfets for your class a amplifier. Each n and p device respectively should be matched else current sharing per device will be compromised. This means n's are matched and p's are matched. Also, voltage biasing for these new Exicon devices tends to be lower so the voltage biasing circuit may need modification to accommodate the new devices otherwise biasing current will not be able to be adjusted low enough.