Rap 'n Tap
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From: W4HAY Frank
Date: 9/6/99
Time: 2:22:49 PM
Remote Name: 206.228.243.5
Steven, I've had better luck running a 1T4 than a 1S5 in 'ginny detectors. As long as you're not trying to drive a loudspeaker with the output stage, I haven't found much gain increase by going from 45 up to 90 Volts. I'm using 2K 'phones or a 10k input transformer with the speaker, so this may be the reason.
From: Paul aka ferrite61
Date: 3/20/99
Time: 1:49:04 AM
Remote Name: 206.83.86.57
Yes... just a little. Conduction begins right around 1.2 volts. Considering the discharge characteristics of an alkaline ( generally like a kiddie slide), the NiCad under light load is better. AA size should do. Object is to pass small current, so as not to swamp your received signal, while getting a sharp increase in current when the signal goes through.