[Amps] Alpha 87A Power Supply Question

[Jim Brown]

On 5/6/2021 6:56 AM, Steve London wrote:
> If I correctly understand what you are saying, this is exactly what the 
> Alpha 76 and my old B&W PT-2500A have done. They have dual 120 volts 
> primaries that they put in series for 240 operation. 120 volts for the 
> blower is derived from one side of a 120 primary and the "center tap" 
> between the two 120 volt primaries.

That is what K4XU did with his design for TenTec's first big amp, the 
425 Titan, designed around 1978-9. It is a proper solution for running a 
120V load from a 240V system.

73, Jim K9YC