05-06-2017, 12:42 PM
(This post was last modified: 05-06-2017, 12:48 PM by Nowhere-Man.)
Something I noticed. The EABC80 triple diode triode in my schematic seems to show 3 cathodes. The schematic is of continental standard so the cathode is typically shown as a big black dot. This EABC80 is used in the ratio detector circuit and is shown split or segmented. Looking at the pin layout below I wasn't sure what s K T means. One of the diodes here has its own cathode. Also I wondered about C 51. Is the "a" just clarifying anode?
I thought it was strange to ground out detector anodes although I have an Ultra where this was done to the AVG anode. Anyway 3 black dots is odd because there should be two. I may be wrong here but I think the Foster Seeley ratio detectors used just anodes for conversion whereas a cathode was used in other detectors (anode and cathode)
I thought it was strange to ground out detector anodes although I have an Ultra where this was done to the AVG anode. Anyway 3 black dots is odd because there should be two. I may be wrong here but I think the Foster Seeley ratio detectors used just anodes for conversion whereas a cathode was used in other detectors (anode and cathode)
