|
|
|
|
|
#1
10-03-2016, 11:23 PM
|
|||
|
|||
|
Changed some resistors and caps that were easy just to get into it.
 
Last edited by Crist Rigott; 12-03-2016 at 03:20 PM. 
|
|
#2
10-04-2016, 10:01 AM
|
|||
|
|||
|
Quote:
|
|
#3
10-04-2016, 11:34 PM
|
|||
|
|||
|
Recapping continues. I replaced the 1.5K 10W Candohm resistor with a 1.5K 50W chassis mount resistor. I was going to use a 25W resistor but the 50W was less than a buck more and I feel it will work better to dissipate the heat.
I'm using 1W resistors to replace the 1/2W carbon composition ones. I'm staying with replacing 1W with 1W and so on. In one instance, I used a 3W resistor instead of a 2W. When I replace a component, I check it off my list, and then highlight it on the schematic. Helps keeps track of what was replaced and a "visual" of my progress. I'm also checking each removed resistor for its value and the value of its replacement. If interested, I'll publish that list when done.    
Last edited by Crist Rigott; 12-03-2016 at 03:18 PM.
|
|
#4
10-05-2016, 02:08 PM
|
|||
|
|||
|
I think I found out why I lost HV on the power up. Looks like R82 a 6.8K resistor is open. I'm redoing V16 a 6BQ6GT Horizontal Output tube. This resistor was buried way down.
The resistor has a couple of small cracks on one end. Other than that the resistor looks normal.   
Last edited by Crist Rigott; 12-03-2016 at 03:15 PM.
|
|
#5
10-05-2016, 07:38 PM
|
|||
|
|||
|
Well, I got V15 and V16 done. It was a bit tight! I like the way Admiral did the 3 resistors on V15!
Here are some before and after pictures.
|
| Audiokarma |
|
#6
10-05-2016, 07:43 PM
|
|||
|
|||
|
Looks like VK won't allow me to upload any more pictures. I'll have to contact the Admin.
|
|
#7
10-05-2016, 09:56 PM
|
|||
|
|||
|
I decided to power it up again to check my progress so far. The good news is that it powered up nicely and my B+ is 244 volts. Sams lists 238 volts. I also have a raster and each control seems to do something. Like Brightness does control the brightness and so on. I only have a low level buzz coming through the speaker which can be varied with the volume control. Also no video.
I tried wiggling each tube but that didn't help. On a few like the sound IF amp it clicked pretty loud in the speaker. Seeing I haven't gotten to the IF stages yet, I'm not surprised. What's left to do is the 3 IF stages, Video Detector, a little in the Video Amp, Sound IF amp, Ratio Detector, Sync Amp-Sync Separator, and the Sync Clipper. Once these are done then I'll have to get into the troubleshooting phase. So far so good. 
Last edited by Crist Rigott; 10-07-2016 at 04:48 PM.
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
