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RE: Rectifer Tube Choice for easy on the other components.............

Posted by PakProtector on April 5, 2021 at 03:59:35:
It is a matter of how you describe 'stress'. The DH models like 5R4, 274, 5Y3 and 5U4 are all DH, and deliver voltage almost instantaneously. If this is an issue, then an IDH would be called for. If it is a matter of voltage output, then the higher resistance models like 5Y3 would be called for.

There is another IDH 5Y3-ish tube, type 6087.
cheers,
Douglas