Adding a one tube reverb question as stand alone

[jackplug1]

Would a transformer from a radio with 5k primary and 3R secondary work with this build?
The small tank I intend to use has a 1.2R input dc resistance and 1 K output.
Would a 12au7 be a better choice in this instance?
I have tested the input of a larger MOD 4AB3C1C and although that is supposed to have an 8 ohm input impedance
but it has a dc resistance of about 1R which confused me a bit.

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