new tv :D

duked · Posted: Nov Tue 03, 2009 11:16 pm

no luck though i do get some sound kind alow hum i think its the transformer though. have noticed thaty when i turn it on the 5u4 has a purple flash inside. noticed the 5y3 is very loose from its base :/ and gets almost instaantly hot no getter can be seen in the tube. i think it might have gone to air
_________________
"it's a record not a musical frisbee."

wcirco · Posted: Nov Wed 04, 2009 12:22 am

The getter on the 5Y3GT is hidden behind the base so it looks as if it doesnt have one.
I think Don hit it right on the head, it is most likley bad filter capacitors. How long does it take for the transformer to get warm?
_________________
“Only Thing We Have to Fear Is Fear Itself” - F.D.R.

duked · Posted: Nov Wed 04, 2009 12:31 am

well didnt leave it n long enough to check. filters are new and i have triple checked the wiring.
_________________
"it's a record not a musical frisbee."

Bill Cahill · Posted: Nov Wed 04, 2009 12:38 am

Sounds to me like the 5y3 may have shorted.
Bill Cahill
_________________
Please visit my forums:
http://tuberadio.heavenforum.com/forum.htm

My friend Mike

duked · Posted: Nov Wed 04, 2009 12:41 am

thats what im thinking this tube is real rough better than the 5u4 was but at least the 5u4 had a nice jingle and i had a replacement.
_________________
"it's a record not a musical frisbee."

duked · Posted: Nov Wed 04, 2009 1:31 am

well after some digging and some constructive group brain storming we felt it would be worth trying a 5u4 in the socket just to see what happened. not good instant purple glow arcing from heater to plates. I've checked wiring to schematic and checked the capacitor leads for shorting and wrapped them in electric tape.
_________________
"it's a record not a musical frisbee."

duked · Posted: Nov Wed 04, 2009 5:52 am

wow spent last three hours tracking wires ALL the filter caps were wired differently from the schematic and i don't think i can get them right by myself. but im gonna try :/
_________________
"it's a record not a musical frisbee."

duked · Posted: Nov Fri 06, 2009 9:49 pm

well we have progress. buckled down with a flashlight and some marking tape got them wired right. still no go plates still heat up red but not as fast and for a while ill get a soound in the speaker. need to just go buy some new leads for my multimeter and start ohming stuff out.
_________________
"it's a record not a musical frisbee."

duked · Posted: Nov Sat 07, 2009 3:48 am

WE HAVE PROGRESS. found the short a old paper capacitors lead was too long hitting against a controls case we have sound now. A BUZZ:D when i mess with the volume you hear popping, so i know there's amplification. still no tuner and no hv. but i do hear that tv noise that only us little wipper snappers can hear. gonna check my 5u4 replace it with the one from my admiral. have a feeling i fried it when i did the 5y3 sub thing.
_________________
"it's a record not a musical frisbee."

duked · Posted: Nov Sat 07, 2009 4:12 am

well put it in
VWOOMP hv came on then there was a purple flash in the 5u4
and i shut it off
_________________
"it's a record not a musical frisbee."

Bill Cahill · Posted: Nov Sat 07, 2009 4:19 am

Sounds like more shorts. Have you re-capped set?
Check for physical shorts. Wiring is critical.
Must be very neat, and, in some circuits, important on lead dress, as well.
Bill Cahill
_________________
Please visit my forums:
http://tuberadio.heavenforum.com/forum.htm

My friend Mike

duked · Posted: Nov Sat 07, 2009 4:44 am

not completely i have just a few caps left in the audio section. im checking for shorts as we speak. i have moved some wires but they wernt far and most moves were necessary for replacement of filters.
_________________
"it's a record not a musical frisbee."

Bill Cahill · Posted: Nov Sat 07, 2009 3:33 pm

If you show some good quality pictures of your wiring we might be able to help you more...
Bill Cahill
_________________
Please visit my forums:
http://tuberadio.heavenforum.com/forum.htm

My friend Mike