Stewart,
Tracor units use a high voltage pulse to start the lamp. You should be able to hear the relay that drives the pulse "clicking" around every 10 seconds or so until the lamp lights up. Tracor lamp failures are not rejuvinatable (is that really a word). However I have in the past installed Efratom lamps into some 304D units. Corby _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.