On Wed, 2008-10-22 at 03:58 -0700, Jim WA9YSD wrote:
> The 44 is a 6.3 volt 0.25 amp higher current and usually indicates more heat
> being dissipated.
>
Not usually. Its certain the 44 dissipates more heat. All tungsten lamps
put out mostly heat with a little light.
> I will stick with the 755. The brightness on the TT amp and Omni meters
> appear to match that on the 755 in the auto tuner.
>
So be it.
> The 51 is 12 Volt and a rare one to find these days.
>
> How much more long life would the bulb have if a 51 was substituted? Yes I
> may have a few of these around as well. I took apart and fixed a few of
> those radios in the 60s. Tvs had these as well to light up the channel dial.
>
Like said before at least twice, 51 or 1893 or 1891 running at half
voltage could last up to a century if not broken by vibration.
> What tube did they put one of these lamps in the circuit to control the
> voltage/current to it? Been way to long.
>
Like I said yesterday and the day before, the 35Z5.
> Keep The Faith, Jim K9TF/WA9YSD
>
>
>
73, Jerry, K0CQ
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