Ampeg OT 319

[Snapcase]

Any idea of the primary impedance of the Ampeg O.T. 319 iron used in the late '60s 7027A loaded amps like B25, V3, B22X and B42X models?

I know many '60s 6L6 driven Ampeg Trannies have 6.5K primary windings. Higher loads than what most builders used for their 6L6 power amps. Did Ampeg used the same old specs for their early 7027 amps?

[booj]

7027's had a bit higher max power dissipation than 6L6's but thier datasheets look pretty identical otherwise. my .02

[Snapcase]

Yeah, I know that. But that was not the question. The question is what Ra-a load Ampeg used for their early 7027 amps.