"6x4" vs "6x5" in Power Supply?

Tubes Asylum

Questions about tubes and gear that glows. FAQ

My early Wright Sound WPL20 preamp uses a 6x4 along with a 6FY7 in its power supply.
Later editions have replaced the 6x4 with a 6x5.
What difference would that make, if any?
TIA

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Topic - "6x4" vs "6x5" in Power Supply? - dvb 13:19:03 10/03/04 (3)

Re: "6x4" vs "6x5" in Power Supply? - steven oda 17:41:28 10/03/04 (2)

Re: "6x5" balls - Chris O 05:41:13 10/04/04 (0)

Re: "6x4" vs "6x5" in Power Supply? - REL54 04:14:49 10/04/04 (0)

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