1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Home Radios

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

Linear Mode
Philco 60 Transformer issue
Ron Ramirez
Silent Key
*****
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#6

10-03-2007, 07:06 AM
Bear in mind that with the 80 tube out of the socket, the voltage you are measuring is a no-load voltage; that is, nothing is connected to the high voltage winding with the 80 tube out of the socket, so the reading will be higher. With the 80 IN the socket (assuming the rest of the tubes are also in their sockets and the set is operational), you will find the voltage reading to then be closer to normal.

This is true of any power transformer. With no load, the voltages will be higher than when they are under load.

Incidentally, you are lucky if your line voltage is only 117 volts. A lot of modern homes have anywhere between 120 and 128 volts. 117 will be kinder to your vintage radios.
--
Ron Ramirez
Ferdinand IN
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Philco 60 Transformer issue - by Guest - 10-01-2007, 01:31 AM
[No subject] - by rickd - 10-02-2007, 09:20 AM
[No subject] - by Texasrocker - 10-02-2007, 11:07 PM
Philco 60 transformer issue - by Guest - 10-03-2007, 12:45 AM
Transformer issue Philco - by Guest - 10-03-2007, 01:10 AM
[No subject] - by Ron Ramirez - 10-03-2007, 07:06 AM
[No subject] - by Texasrocker - 10-03-2007, 11:53 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Refinishing Ideas
Hi Poulsbobl, I think that you could get away with it.  In the Philco Library, there is a parts listand specs for sp...MrFixr55 — 11:54 PM
Philco 46-480 Electronic Restoration
The sleeving for the transformer arrived early, so I went ahead and finished reassembling. The chassis looks far better ...jrblasde — 10:15 PM
Philco 610B oscillator wiring
I don't know what you are referring to when you say "tube cathode ground". Ground is a connection to the chass...RodB — 05:56 PM
Zenith H725
Good points, Arran. I haven't encountered this problem with any other radio (all earlier vintages), so am learning here....EdHolland — 05:32 PM
Zenith H725
Ed; One thing that I will say about these is that Brand Z was considerate enough to make these mica caps easily acces...Arran — 02:34 PM
Philco 610B oscillator wiring
Do you know what run # your chassis is? It took me a while to find what you were basing updates/modification on as I did...Radioroslyn — 07:34 AM
Need to purchase some accessories for restoration of my Old Philco Radio
COLLEAGUES, Thank you all for such good and important suggestions as how to find good replacement parts. I will go fo...palonso — 07:05 AM
Zenith H725
Here's what the inside of AM IFT2 looked like, and the other pic shows the discs I made to take place of the mica and ke...EdHolland — 07:40 PM
Zenith H725
IF2 will need replacement caps. The arcing was severe enough that the mica is pitted and holed where the HT flashed over...EdHolland — 04:04 PM
My Philco 37-116 Restore
Measuring from center tap like the tube voltages show. Cap 127 is isolated from ground. Cap 127 shown in upper left of p...dconant — 08:05 AM

[-]
Who's Online
There are currently 785 online users. [Complete List]
» 1 Member(s) | 784 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Home Radios