[R-390] A Little Help Needed

[Roy Morgan]

At 05:38 AM 8/7/2007, ELDIM wrote:
>Hello Gang,
>The R-390A  Receiver uses two #328 Lamps which are which are rated at 6.0 
>Volts 200 ma., 0.600*MSCP, Life Expectancey is 1000 Hours.

Here, unedited and unconfirmed, are bits of info I found in my notes files:


328              Original bulb
328AS10          A longer life
                  (different filament materiel same volts same amps.)
328AS15          A longer life
                  (another filament materiel same volts same amps.)
328R             The rugged one. less light same volts same amps.


For the NON-A:  (Prices were in 2001)
The 327 is a 28 volt bulb which is correct for the R-390.
Mouser stock number is 606-CM327 at 50 cents each.  You
could also get a 376, stock number 606-CM-376 for 79 cents
which is rated at about 6 times the life of the 327.

(later):
Lamp # 328, 6.3 Volts, 0.2 Amp, MTBF 1000 Hrs. For the R-390A.  Mouser
606-CM328  $.93
Lamp # 381, 6.3 Volts, 0.2 Amp, MTBF 20,000 Hrs. For the R-390A. Mouser
606-CM381 $1.27

Lamp # 387, 28 Volts, 0.040 Amp, MTBF 7000 Hrs.  For the R-390. Mouser
606-CM387  $.47

Hope this helps. Use the #328 my R-390A. Must be close to 4000 Hrs on them.
About 900 Hrs on the R-390 with the #387.

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing
13033 Downey Mill Road, Lovettsville, VA 20180
Phone 540-822-5911   Cell 301-928-7794
Work: Voice: 301-975-3254,  Fax: 301-975-6097
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