[R-390] Another ballast tube replacement

Rbethman rbethman at comcast.net
Sat Jul 10 19:17:17 EDT 2004


All,

    While digging around the proverbial "junque" box, I stumbled across 
something from MANY years ago.  It MAY prove to make another replacement 
for ballast tubes.

    This particular item is an S)-239 connector with a GE-47 bulb 
soldered in.  It also has a red flexible translucent tip.  These were 
sold approx 20+ yrs ago as <cringe> CB dummy loads.

    If this took the 4 watt carrier AND the modulation, AND provided a 
50 ohm load, THEN a #47 soldered with wires one then inserted into pin 2 
the other into 7, it SHOULD replace the ballast tube.  NO RFI.

Bob - N0DGN

-- 
<                      Bob Bethman - N0DGN
+-------------------------------+----------------------------------+
| N0DGN AMRadio Manassas, VA    |    REAL Tube Radio and AM        |
+-------------------------------+----------------------------------+
|       Manassas Radio - Home of Homemade Kielbasa & Pirogi        |
+-------------------------------+----------------------------------+
| Bob Bethman                \\\|///     " The absence of a danger |
| rbethman(at)comcast.net   \\ ~ ~ //      signal does *NOT* mean  |
|                           (/ @ @ /)      that everything is OK " |
+-------------------------oOOo-(_)-oOOo----------------------------+
|               <http://home.comcast.net/~rbethman>                |
| 1 BC-610I w/BC-614I,1 T-213/GRC-26 w/BC614I 1 '51 Collins R-390A |
| 1 '67 EAC R-390A, Heathkit DX-60, Apache, Mohawk, SX-101, HT-32A |
+------------------------------------------------------------------+
|           Amateur Astronomer - Celestron Nexstar 8               |
|             12" f5 Dob coming soon!  Being built                 |
|                  Meade ETX-60 (Got it back!)                     |
|               38 Deg 46.8' N - 77 Deg 28.5' W                    |
+------------------------------------------------------------------+
|   Opinions expressed are that of my own and do not necessarily   |
|         coincide with or represent those of ANYONE else          |
+------------------------------------------------------------------+
  ALL E-mail received and sent scanned by AVG & Norton Anti-Virus>





More information about the R-390 mailing list