Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

38-15 Project
#12

Thanks for the explanation Arran.

It has all the correct tubes including a 41 output tube. I have a power resistor of 50W at 50ohm in line with the hot side of the plug after the fuse. It drops the incoming voltage to around 108 but the power trans still gets a bit warm around 125 degrees with it just sitting on the bench not in its cabinet. The resistor gets very warm/hot at around 160 degrees I have it heat sinking to the chassis with some thermal paste which keeps it a little cooler.

I am starting to wonder if there isn't something pulling more current then it should although I do have a 1amp fuse in line and it doesn't blow open even on start up.

-Keith


Messages In This Thread
38-15 Project - by ipwizard - 08-10-2012, 01:25 PM
RE: 38-15 Project - by Chuck Schwark - 08-10-2012, 01:32 PM
RE: 38-15 Project - by codefox1 - 08-10-2012, 02:02 PM
RE: 38-15 Project - by Chuck Schwark - 08-10-2012, 03:22 PM
RE: 38-15 Project - by ipwizard - 08-10-2012, 04:40 PM
RE: 38-15 Project - by ipwizard - 08-13-2012, 01:05 AM
RE: 38-15 Project - by ipwizard - 09-30-2012, 12:39 AM
RE: 38-15 Project - by Ron Ramirez - 09-30-2012, 06:42 AM
RE: 38-15 Project - by TA Forbes - 09-30-2012, 08:32 AM
RE: 38-15 Project - by ipwizard - 09-30-2012, 12:46 PM
RE: 38-15 Project - by Arran - 09-30-2012, 08:41 PM
RE: 38-15 Project - by ipwizard - 10-01-2012, 01:12 PM
RE: 38-15 Project - by Chuck Schwark - 10-01-2012, 03:56 PM
RE: 38-15 Project - by ipwizard - 10-01-2012, 06:32 PM
RE: 38-15 Project - by Chuck Schwark - 10-02-2012, 08:58 AM
RE: 38-15 Project - by Ron Ramirez - 10-02-2012, 09:03 AM
RE: 38-15 Project - by ipwizard - 10-02-2012, 02:13 PM
RE: 38-15 Project - by Ron Ramirez - 10-02-2012, 02:23 PM
RE: 38-15 Project - by codefox1 - 10-02-2012, 02:24 PM
RE: 38-15 Project - by TA Forbes - 10-02-2012, 04:14 PM
RE: 38-15 Project - by LASJayhawk - 10-02-2012, 09:53 PM
RE: 38-15 Project - by ipwizard - 10-03-2012, 12:14 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Model 70 Cabinet Trim
Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM
philcorepairbench.com - shadow-meter
Thanks Ron.fenbach — 02:43 PM
Model 70 Cabinet Trim
Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM
philco predicta
Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM
Model 70 Cabinet Trim
Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM
Model 70 Cabinet Trim
How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM
philco predicta
Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM
Philco model 38 code 121 not receiving signal.
So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM
462ron
It’s on the bottom of the homepage of our Philcoradio.com homepage! Ron462ron — 07:20 AM
Model 70 Cabinet Trim
Steve might have some trim left. Not sure he is making anything.morzh — 06:12 AM

[-]
Who's Online
There are currently 1071 online users. [Complete List]
» 1 Member(s) | 1070 Guest(s)
Avatar

>