Posts: 65
Threads: 4
Joined: Oct 2016
City: Alexandria Virginia
I have all new tubes and still nothing. all voltages for the XXL tubes are nowhere near what the spec says. The plate voltage is 1.5V, whereas it should be 150V. In fact the only voltage that is high in the whole radio as far as I can tell is at the 84 tube and the voltage there is 480V. Way too high. Maybe there is a problem with the transformer.
Messages In This Thread
RE: 42-365 - by ccbaker13 - 12-01-2016, 09:09 PM
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Need Help to ID this radio 11 tube Philco
|
Thank you.
I went to your online library and found 2 schematics.
I will download and compare to components!Ken D. — 06:31 PM |
Need Help to ID this radio 11 tube Philco
|
It is a 16B tombstone.morzh — 06:13 PM |
Zenith H725
|
David - sorry, I reread your post and finally saw THD - now the % figures make sense. Thanks for explaining.
The PSU...EdHolland — 06:06 PM |
Need Help to ID this radio 11 tube Philco
|
Hi Everyone,
New member but have been reading this for awhile for tips!
Vaccum tubes were before my time so bear with ...Ken D. — 06:03 PM |
My Philco 37-116 Restore
|
Thank you MrFixR55, I appreciate your comments very much. I do not detect much hum if any so I will be staying with the ...dconant — 05:15 PM |
My Philco 37-116 Restore
|
Hi DConant
Yes, you can replace chokes with resistors. You do stand the risk of increased hum. the solution is to inc...MrFixr55 — 04:23 PM |
Zenith H725
|
1.7-3.9 %, a modified Sine wave inverter is around 25%. Most generators from big box stores run 10% at a 50% load. What ...David — 04:06 PM |
My Philco 37-116 Restore
|
I am having a heck of a time doing the alignment on the AM band. I can't seem to dial in the 1500 KC oscillator. I can h...dconant — 03:35 PM |
Zenith H725
|
David - I think I understand but what units are you discussing (Low of 1.7, high of 3.9)?
Budget constraints for Ham ...EdHolland — 01:43 PM |
My Philco 37-116 Restore
|
You're doing great.
I wish I could be more involved, but my mind is right now preoccupied with the reason I am here in ...morzh — 12:21 PM |
Who's Online
|
There are currently 725 online users. [Complete List] » 2 Member(s) | 723 Guest(s)
|
|
|

|