[Boatanchors] Bud Radio Frequency Calibrator question

[n2lxm at juno.com]

Greetings Dave,

        I think there were two model 90 Calibrators. One used an 6SK7 and
got it's power from the receiver it was hook up to. The other one used
the 117L7GT tube. If yours has a power cord, then it's theright tube.


                                                    Jeff N2LXM
                                          Amateur Radio Operator
                                                      American
                                                        Patriot
                                     Proud Father of Two US Marines

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