04-12-2019, 10:32 PM
The other day I went back to the 114, and discovered that the RF Alignment was out especially the RF & Mixer stages, so a quick tune up brought the radio up to par sensitivity and outpul wise. Whether the problem was down to water ingress I'm not sure, though there is no sign of water damage anywhere in the RF or IF stages. The radio will now produce about 6 watts o/p into 3 ohms @ 14v on a strong local station, and receives the four of five MW and one LW (Radio 4) that I'd expect to be able to listen to. The o/p power falls quite dramatically with reducing supply voltage, down to about 2watts or less @11v supply, but as Motorola didn't include any form of stabiliser in the design, this is only to be expected. Subject to a ;soak' test, this job is now finished.
