[ARC5] Way OT -- SX-28

[Hubert Miller]

>I have never understood the need for "big audio" in a communications receiver.  Who needs it unless for distribution to remote speakers.  A Zenith Transoceanic portable will fill the shack with more volume than you can use with only 730 mW output from its 3V4 audio amp.  Mike, W6MAB

Ditto that. I have a National NBS-1 ( NC-183+ ) and I don't see the need for powerful PP output on a communications type receiver.
I notice the two Eddystone recs I have use single ended. I think a 'line out' connection would suffice if one wants better audio. 
I would rather see a smaller single output tube with lower heat radiated inside the radio, or maybe smaller tubes, like some dual triode, for the
audio output if one is concerned about tone.  As for CW, what comes to mind is noise and fading on the signal anyway, so I myself would not
appreciate higher quality reproduction for this mode.

The previous post with comments about features of PP audio is entirely valid. I just don't see the need. On the other hand, maybe the tube
Transoceanics could have used a smaller PP audio output, but maybe in this case, the size and quality of the speaker would make that a not
worthwhile step up? A German WWII troop morale receiver just came to mind, the WR-1, a battery set with a PP audio output. However the
audio power is a whole lot less than 2 6V6. Their output tube is some kind of, if I recall, 1.5 volt dualtriode loktal.
-Hue Miller