[ARC5] BC453 on 24V

[Hubert Miller]

But with 'standard' tubes the achievable gain falls off at 28 volts.
The R-808 / GRC-14 rec manual says this is why the receiver has 2 RF and 3 IF, because stage gain is lower with 28 volts. Like the R-392, it uses 6AJ5.
-Hue

>I used to power up the filaments on my R-11A and reduce the B+ until it quit.  I found I could get down to just a little before I got to 28VDC and still be able to hear a signal.  And with the basic R-11A there was no volume control or gain control.  You just plugged in a headset and listened.

Note that the various BC-1206 receivers all work on 28VDC B+ and filament voltage, as does the R-392, and numerous tube type marker beacon receivers, including the BC-357, BC-1033, and R-666.

WAyne
WB5WSV
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