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I was lucky that the original output transformers were in great shape. The power transformer, not so much. The power transformer was rebuilt by Heyboer. I can't confirm the original manufacturer of the output transformers but I highly recommend Heyboer to have them built if needed. If they are...

My HF-87 build.

Jim, I read through your restoration of the HF87 you did a couple years back. I am performing my first rebuild of a tube amp - HF87. I purchased a power supply kit and audio path parts from McShane. I have installed everything but found out that my power transformer may be defective...