[Milsurplus] Morale Audio on Ships

[J. Forster]

Hi Bruce,

I'm pretty much on the same wavelength as you. When you say 3 volts of
signal, do you mean peak, average, RMS, or what.

Best,

-John

===============


> I have a restored Scott SLRM, and it has a winding on the output
> transformer for 600 ohm line output. Considering there are two 25l6
> tubes in push-pull, the output level is probably fairly good when the
> volume is set for a pleasing level from the built in loudspeaker. About
> 3 volts of signal on the grid of a 117N7 in a typical circuit should
> give very satisfying volume. Many kiddie phonographs used that tube and
> drove it directly from a crystal cartridge without a preamp stage. A
> transformer wound for 10 or 20 K.  bridging and a 50k secondary should
> be able to deliver  plenty drive for the room amplifiers. Bruce Gentry
> KA2IVY