Yes, this seems to have been ARC's methodology to use power resistors as fuses for the VT series amps. I went through this with the VT130 a few times and after the second time, I bought a dozen resistors so I would be ready when the next power tube failed. It was an easy task to remove the amp's bottom plate and solder in a replacement resistor .... then a few more minutes to re-bias the amp and then back in business. It was quite a loud explosion when the resistor blew up!
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