Posts: 4,894
Threads: 54
Joined: Sep 2008
City: Sandwick, BC, CA
Ed:
I'm not sure how much work you want to put into this but you could convert the set from being a hot chassis to a floating chassis set. Someone from the U.K on the A.R.F mentioned that they like to do this with British radios over there, since as he said "getting shocked by 240 volts hurts a lot". IN fact I was looking over mt Bush DAC 90A and I recon it would be easy to do it with that set since most of the caps are mounted on a terminal board. The H725 might be more difficult, I don't know, but then again you could just copy a floating chassis set, like a Philco FM model.
Regards
Arran
Messages In This Thread
RE: Zenith H725 - by Arran - 03-18-2025, 10:08 PM
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Philco 42-345 Restoration/Repair
|
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM |
Philco 42-345 Restoration/Repair
|
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM |
Philco model 38 code 121 not receiving signal.
|
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM |
Testing a speaker and output transformer Trutone A2-G
|
The equivalent of one short turn is basically the same as that of a shorted load.
If it is the primary's turn, then the ...morzh — 03:53 PM |
Testing a speaker and output transformer Trutone A2-G
|
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM |
Philco model 38 code 121 not receiving signal.
|
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM |
Philco model 38 code 121 not receiving signal.
|
Well why not! :lol:Stormlord5500 — 03:14 PM |
Philco model 38 code 121 not receiving signal.
|
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM |
Testing a speaker and output transformer Trutone A2-G
|
morzh
Short-circuited turns can be considered as a half-dead transformer.
But on this case transformer will hot and s...Vlad95 — 11:01 AM |
Testing a speaker and output transformer Trutone A2-G
|
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM |
Who's Online
|
There are currently no members online. |
|

|