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boxdoctor · 25th Feb 2016, 10:32 am

Hi Donald,
Looking at the input circuit to the VHF section, I would think it's the continental standard (at the time) 300 ohm impedance balanced twin ribbon cable to a folded dipole aerial. More details here: https://en.wikipedia.org/wiki/Dipole_antenna The snag is that 300 ohm ribbon cable is getting as rare as hen's teeth. You may have to improvise with what is to hand, probably 75 ohm co-ax and a normal dipole. A mis-match, but probably the simplest answer. (A cut-down band one dipole is a quick solution if you can find an old one) Keep at it, Tony.
PS. my set did not work on long wave due to the ECH81 being low emission. Replacement cured the problem.

25th Feb 2016, 10:32 am	#124
boxdoctor Rest in Peace Join Date: Sep 2010 Location: Ripley, Derbyshire, UK. Posts: 785	Re: Philips B3G63A Hi Donald, Looking at the input circuit to the VHF section, I would think it's the continental standard (at the time) 300 ohm impedance balanced twin ribbon cable to a folded dipole aerial. More details here: https://en.wikipedia.org/wiki/Dipole_antenna The snag is that 300 ohm ribbon cable is getting as rare as hen's teeth. You may have to improvise with what is to hand, probably 75 ohm co-ax and a normal dipole. A mis-match, but probably the simplest answer. (A cut-down band one dipole is a quick solution if you can find an old one) Keep at it, Tony. PS. my set did not work on long wave due to the ECH81 being low emission. Replacement cured the problem. Last edited by boxdoctor; 25th Feb 2016 at 10:42 am.