Williamson Amplifier Mk IV

     

	The amplifier KEW88-91D is the fourth and final attempt in building a modern, good and cheap stereo Williamson Power Amplifier. The chassis is handmade of solid Pine.
	KEW88-91D, The Williamson Amplifier Mk IV using triode connected 6550's from Sovtek. Main Data: Power Consumption: 150W@230/115V 50-60Hz Supply Voltage: 2X440Vdc@150mA Heater Voltage: 2X6.2V@4.2A (1.5A@6550) Closed Loop Gain: 20dB Std Feedback (BF+1): 15dB BW (+/-3dB): 7Hz-280kHz@67mW Output Power (4-8R): 2X20W/6Ohm/1kHz/10%THD

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