hi there, does anybody know what type of pilot lamp does H725 use? it is stated in the schematic as "Neon Bulb". is it really a neon bulb or a conventional tungsten? (#47 etc??)
2/15/2006 8:11:08 PMGreg Bilodeau(36987:36986)
Mine uses a NE-51 neon bulb. Greg
:hi there, does anybody know what type of pilot lamp does H725 use? it is stated in the schematic as "Neon Bulb". is it really a neon bulb or a conventional tungsten? (#47 etc??)
2/15/2006 8:45:48 PMFerhat Ozgur(36990:36987)
thanks greg, mine came with a tungsten bulb. on the bulb it writes "T1893 china 3I" and as you guess it doesn't lite up. so can i still find a NE-51 or a substitude?
2/15/2006 9:35:45 PMRich, W3HWJ(36991:36990)
:thanks greg, mine came with a tungsten bulb. on the bulb it writes "T1893 china 3I" and as you guess it doesn't lite up. so can i still find a NE-51 or a substitude? &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& Yes, NE-51 is still available. http://www.jameco.com/webapp/wcs/stores/servlet/CategoryDisplay?storeId=10001&catalogId=10001&langId=-1&categoryId=153050
Rich &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
2/15/2006 9:37:28 PMDoug Criner(36992:36990)
NE51 lamps are listed at www.radiodaze.com and www.tubesandmore.com
2/17/2006 5:30:13 PMFerhat Ozgur(37039:36992)
thank you all...
2/17/2006 10:41:54 PMBill VA(37042:37039)
Hi, I'm looking at SAMS Set 135 Folder 15 for Zenith H725 (Ch. 7G01Z).The parts list has the dial light as a bayonet 7.5 Volts .2 Amp White Bead Type 51. The symbol on the schematic is for a Neon Bulb. The series resistor is 100k. The lamp for the K725, F, G, chassis 7K01 is listed as a Neon 51 and it's symbol on the schematic is for regular type. The series resistor is 100k. I'm saying all this to say I don't believe I have ever worked on a radio where the schematic and all parts actually agreed. Seems I recall a lot of late 40's early 50's where the plastic caps were always different, more so in the voltage rating and lower at that. Oh well.