That's a cool link. What I want to know is his 'secret sauce' for shipping a SB-220 without damage. The chassis metal does not have the tensile strength to support the heavy HV transformer under any kind of handling shock. We have seen the chassis deck bent under that transformer in nearly every SB220 we see that gets shipped. The worst one had severed the chassis deck all along the rear panel. Frequently it deforms enough to interfere with one circuit breaker and crack its case. When the factory sold the assembled version, it arrived in three cartons. One for the amplifier, one for the tubes and one for the HV transformer. The transformer had plugs on every wire. You bolted and plugged it in when it arrived. But Heathkit was not foolish enough to ship it with the transformer bolted to the chassis deck. A look inside a Henry Radio amplifier reveals metal five or more times that thickness under their HV transformers. But you can ship their amps assembled. That's why.
If he has worked out a way to have you ship a SB 220/221 to him without damage, that would be real news.
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