mbratch
12-02-2006, 11:21 AM
I noticed in my BFDR if I tap on the 170V lead on the second triode of V1 (with a chop stick :>) that it is quite audible in the speaker. One or two other leads on V1 are also microphonic (neighboring that one). Others not much at all. At first I thought it was the wire vibrating the tube and that the tube was microphonic, but I find that it happens with any 12AX7 that I plug in to an equal extent, and not all the connections to V1 have this microphonic property.
Anyone else find this to be so?
Anyone else find this to be so?