I am trying to help a local friend get one of these going, and think we have made good progress. Can someone tell me if they see ANY screen current with no drive applied to the amp? The HV looks good
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Thu, 11 Mar 2010 12:33:16 -0800
What's the mfr/part number of the lamp? Is it a standard industry type? Older Ten Tec gear (Titan 425, Herc I, Herc II, 229 and 238 tuners) all use standard bayonet lamps that are easy to source from
Hi Jim..... They're hardwired, so I should probably go with the LED's, since they have a longer life. TT only gives their part number and I have not yet pulled the meters. ___________________________
On meters with lamps inside burned out: You may, if the meters are white or clear plastic cases, be able to mount a lamp holder near the meter to shine thru the case. Probably a high brightness LED w
Author: "David W LeJeune, Sr" <lejeuned@centurytel.net>
Date: Thu, 11 Mar 2010 13:27:19 -0600
My titan III screen meter, with no drive, is about 1/8 inch above zero. In normal operation, I actually show a very small amount of negative grid current at maximum output - needle never goes below 1
Many thanks Dave! Makes me feel better ;-). I ordered the LED "kits" for the meters from TT.....they build them for ten bucks per meter. I'll tear into it some rainy day. -- _________________________
Jim and John, I have a Titan II which has the same situation. My understanding from the service manager at Ten Tec is that the removal and installation of the lamps is no easy task. They said they wo
FWIW - I just put LEDs in a T2X controller internally lit meter - with diffused LEDS - don't like it very well.Played a lot with current and sanding them more etc. I see that All Electronics . www.al
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Thu, 11 Mar 2010 20:39:32 -0600
The TT manual that I downloaded only identifies the lamps on the schematic and shows them separate from the meter and the meter wiring. The lamps are hard wired to the 12 volt supply but the meters p
OK, I got radical. I fashioned a strip made from a old ruler, painted it to match the meters' trim, mounted two # 47 sockets on its underside and attached it just at the bottom FRONT of the meters u
Author: "David W LeJeune, Sr" <lejeuned@centurytel.net>
Date: Fri, 12 Mar 2010 09:51:20 -0600
How about a picture - My lamps have been out for 2 yrs. Dave WN5V@arrl.net OK, I got radical. I fashioned a strip made from a old ruler, painted it to match the meters' trim, mounted two # 47 sockets
According to Garey - K4OAH, who is an expert on Drake equipment (if you are on the Drake list, you are very familar with him and his expertise), if you replace the number 47 bulbs with number 755 ins
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Tue, 16 Mar 2010 15:45:11 -0600
According to the Chicago Miniature listing in the print Mouser catalog at hand, the 47 is rated for 3000 hours and the 755 is rated for 20,000 hours. The 47 puts out a half spherical candle power and