100W peak 4Ohm

[zeus_threat]

Toroid question

Sorry was busy very busy with work. Its hard to get a living out of one field and diy into another anyway. Well yes wg 😀 its a loooooooooooooot of work but mayber am over precaucious here. Fianlly got my hands on a toroid. Nothing mentionned about VA but diameters are 12 cm external and 7cm dia for the empty part of the inner ring height is 5.2cm. Do these dimensions correspond to a 500VA toroid? And weights very heavy

Thanks for the base stopper wg almost forgot it



Thanks

 

[DigiSoft]

Can someone tell me what Wattage do I get with one pair of 3055/2955 and what wattage with two pairs of this transistors if the power supply is +-30V ? Thank you.

 

[boraomega]

Theoretically about 100W, but in practice count on about 70-80W on 4 ohms resistive load, and you certainly need two pairs for 4 ohms load operation. With the same given load, DC supply voltage (and PSU current capabilities) is the factor that will determine output power, not number of output transistors (once you have minimal necessary number!).

 

[AndrewT]

+-30V supply will limit the maximum output voltage to ~22Vpk
1pair of output devices can drive 8r0 to ~30W
2pair of output devices might be able to drive 4r0 to ~60W