Re: TR-7 and R-4C 5.645 Crystal Filters

Rob Sherwood · 2025-02-26T14:48:56-08:00

The TR-7 has 50 ohm filters on 5645 kHz. The R-4C first IF and second IF on AM is 5645 kHz The R-4C second IF on SSB & CW is 5695 kHz. Rob, NC0B

Rob Sherwood All Messages By This Member #83171 开云体育 The TR-7 has 50 ohm filters on 5645 kHz.? The R-4C first IF and second IF on AM is 5645 kHz The R-4C second IF on SSB & CW is 5695 kHz.? Rob, NC0B? toggle quoted message Show quoted text On Feb 26, 2025, at 3:43?PM, aa5wg via groups.io <aa5wg@...> wrote: ? I do no know if this internet AI search information is correct or not? ? Search results: ? 1. Drake R-4C 1st IF filters have an input and output impedance of 1000 ohms. ? 2. Drake R-4C 2nd IF filters have an input and output impedance of 50 ohms. ? 3. Drake TR-7 filter impedance's were not found. ? Chuck ? ?

Join [email protected] to automatically receive all group messages.

开云体育