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ARC D 70 II

I am getting my second D70, regretting selling one a few years ago.
Question- there are 4 power tubes, either 6550s or KT 88s. There is a fifth power tube that I think is part of the power supply. Can one use an 88 for power supply and 6550 s for power, or vice versa?
Supposed to arrive today. A terrific amp. Will compare to my MC 275 vi and restored MAC 1500, amp section only. Hey, a classic shoot out in me own home.
LowIQ


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Topic - ARC D 70 II - dgaapc7 09:35:28 08/08/24 (10)

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