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

Truetone D724 power xformer replacement?
#16

From what I read Detrolas were known for burning power transformers, at least on their motorized dial sets. If it's getting warm and drawing too much current it could be a shorted winding, both a voltage check and resistance measurements should show if anything is off. Does the schematic indicate that this set had a 650 volt high voltage winding? Most sets have a 700 volt high voltage winding, like 350-0-350, it doesn't mean that other sets did not of course, some were more, some were less.
Regards
Arran
#17

Framus is the same as ""that thing over there", "dohickey" or anything that you cannot thionk of the name for, going for gadget.

Also sometimes called ""framajan on the fraun".
#18

Well I put in the new transformer and the radio works but my 6G5 does not light which was working before. Retested the tube and it now shows bad for the closed and open position (using an NRI 67 tester) would the transformer take the 6g5?
#19

This is the eye tube, and I do not think there is any possible way the tube alone could bring down the set, nor could the transformer make the tube fail. But do check the wiring from socket to the set. Sometimes the wires fray causing shorts to each other or the chassis.




Users browsing this thread:
[-]
Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM
Zenith H725
Ed; One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM
Zenith H725
I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM

[-]
Who's Online
There are currently no members online.

>