210-65 power transformer

matt_sutton

hi All-

Power Transformer on my 210-65 (tube PI) has become "microphonic", for lack of a better word. Emits a low hum, even on standby- you can feel the vibration by touch. I know Mercury Magnetics makes a replacement, but its crazy expensive. Does any one have an angle/part# for one by Hammond or other manufacturer?

thanks,

Matt 

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mm210 Wed, 03/25/2026 - 09:01

Mercury is the only think I have seen lately. I could be wrong though. I don't do any work anymore so I haven't kept up too much. They ARE high though. 

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MidCenturyAudio Thu, 04/23/2026 - 09:44

I've been talking with Phil and Arlyn at Heyboer Transformers about a replacement power transformer for my 2275 150-HD. Heyboer made the replacement trannies for Mojotone. They still have the wind cards for some of these transformers including the 2165 chassis. Might check with them? 

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