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

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

Zenith H725
#23

As part of other errands this morning, I stopped at the hardware store and bought replacement grommets. $6 out of the door for a pack of 6!!! fortunately I had another two as eight were required. Am I being tight, or is that a ridiculous price for small pieces of rubber.

I removed the speaker, and gave the chassis a good cleaning - it needed to come out anyway to access the grommets on it's mounting plate. and got it all back together OK, except the dial cord for the tuning indicator has also broken, so will replace that later. I was more or less expecting this, since the other cord let go at first sight.

Once it was back together, I arranged the bench carefully, put knobs on the chassis, and hooked up the dim bulb tester, double double checking the chassis connection and plug orientation. I applied power, and the bulb lit fairly brightly at first, but steadily faded to the dimmest of dim glow. At first, nothing, but eventually a hint of received buzz (not power supply hum) and a station on AM. As it warmed up further, there was a pretty good reception across the range. Switching to FM it made all the right noises, and tuned in stations, although it does seem in need of alignment and not delivering the best audio - then again, FM reception in the work area basement isn't the best.

Anyway, lots of progress, and definitely a very viable project. Time to replace the paper caps and bring this up properly. I have not decided what to do about the four section filter cap yet (80, 40, 40, 40 uF) and although it works for now, I think it should be replaced as it is going back to our friend.

I don't hold with furniture that talks.


Messages In This Thread
Zenith H725 - by EdHolland - 03-17-2025, 09:45 PM
RE: Zenith H725 - by MrFixr55 - 03-17-2025, 10:24 PM
RE: Zenith H725 - by EdHolland - 03-18-2025, 11:52 AM
RE: Zenith H725 - by David - 03-18-2025, 01:48 PM
RE: Zenith H725 - by EdHolland - 03-18-2025, 06:09 PM
RE: Zenith H725 - by Arran - 03-18-2025, 10:08 PM
RE: Zenith H725 - by RodB - 03-19-2025, 10:04 AM
RE: Zenith H725 - by EdHolland - 03-19-2025, 10:46 AM
RE: Zenith H725 - by morzh - 03-19-2025, 12:38 PM
RE: Zenith H725 - by RodB - 03-19-2025, 12:55 PM
RE: Zenith H725 - by morzh - 03-19-2025, 01:25 PM
RE: Zenith H725 - by David - 03-19-2025, 03:49 PM
RE: Zenith H725 - by Arran - 03-19-2025, 04:45 PM
RE: Zenith H725 - by Paul Philco322 - 03-19-2025, 08:13 PM
RE: Zenith H725 - by EdHolland - 03-20-2025, 12:34 PM
RE: Zenith H725 - by MrFixr55 - 03-20-2025, 12:59 PM
RE: Zenith H725 - by EdHolland - 03-20-2025, 08:40 PM
RE: Zenith H725 - by MrFixr55 - 03-21-2025, 08:59 AM
RE: Zenith H725 - by radiorich - 03-21-2025, 09:29 AM
RE: Zenith H725 - by EdHolland - 03-21-2025, 09:41 PM
RE: Zenith H725 - by MrFixr55 - 03-21-2025, 09:53 PM
RE: Zenith H725 - by EdHolland - 03-22-2025, 03:17 PM
RE: Zenith H725 - by EdHolland - 03-22-2025, 06:09 PM
RE: Zenith H725 - by RodB - 03-22-2025, 06:52 PM
RE: Zenith H725 - by Arran - 03-22-2025, 07:05 PM
RE: Zenith H725 - by MrFixr55 - 03-22-2025, 08:34 PM
RE: Zenith H725 - by EdHolland - 03-22-2025, 08:40 PM
RE: Zenith H725 - by radiorich - 03-22-2025, 10:22 PM
RE: Zenith H725 - by radiorich - 03-22-2025, 10:35 PM
RE: Zenith H725 - by MrFixr55 - 03-22-2025, 10:39 PM
RE: Zenith H725 - by radiorich - 03-23-2025, 12:17 AM
462ron - by 462ron - 03-23-2025, 08:54 AM
RE: Zenith H725 - by Paul Philco322 - 03-23-2025, 09:18 AM
RE: Zenith H725 - by EdHolland - 03-23-2025, 10:37 AM
RE: Zenith H725 - by radiorich - 03-23-2025, 11:31 AM
462ron - by 462ron - 03-24-2025, 08:22 AM
RE: Zenith H725 - by radiorich - 03-24-2025, 08:34 AM
RE: Zenith H725 - by EdHolland - 03-24-2025, 02:44 PM
RE: Zenith H725 - by EdHolland - 03-24-2025, 06:56 PM
RE: Zenith H725 - by radiorich - 03-24-2025, 10:33 PM
RE: Zenith H725 - by EdHolland - 03-24-2025, 10:46 PM
RE: Zenith H725 - by Arran - 03-24-2025, 11:42 PM
RE: Zenith H725 - by EdHolland - 03-25-2025, 11:49 AM
RE: Zenith H725 - by Arran - 03-25-2025, 06:40 PM
RE: Zenith H725 - by EdHolland - 03-25-2025, 06:42 PM
RE: Zenith H725 - by EdHolland - 03-25-2025, 09:13 PM
RE: Zenith H725 - by radiorich - 03-26-2025, 01:02 AM
RE: Zenith H725 - by EdHolland - 03-27-2025, 10:57 AM
RE: Zenith H725 - by EdHolland - 03-27-2025, 04:25 PM
RE: Zenith H725 - by EdHolland - 03-27-2025, 11:08 PM
RE: Zenith H725 - by EdHolland - 03-28-2025, 03:45 PM
RE: Zenith H725 - by EdHolland - 03-28-2025, 09:53 PM
RE: Zenith H725 - by radiorich - 03-29-2025, 01:27 AM
RE: Zenith H725 - by MrFixr55 - 03-29-2025, 02:33 PM
RE: Zenith H725 - by David - 03-29-2025, 06:28 PM
RE: Zenith H725 - by EdHolland - 03-31-2025, 12:16 PM
RE: Zenith H725 - by rfeenstra - 03-31-2025, 02:37 PM
RE: Zenith H725 - by RodB - 03-31-2025, 02:41 PM
RE: Zenith H725 - by EdHolland - 03-31-2025, 03:03 PM
RE: Zenith H725 - by EdHolland - 04-02-2025, 06:42 PM
RE: Zenith H725 - by EdHolland - 04-02-2025, 08:39 PM
RE: Zenith H725 - by Arran - 04-02-2025, 11:42 PM
RE: Zenith H725 - by radiorich - 04-03-2025, 12:19 AM
RE: Zenith H725 - by EdHolland - 04-03-2025, 10:18 AM
RE: Zenith H725 - by EdHolland - 04-04-2025, 06:18 PM
RE: Zenith H725 - by Paul Philco322 - 04-04-2025, 08:27 PM
RE: Zenith H725 - by EdHolland - 04-04-2025, 09:08 PM
RE: Zenith H725 - by radiorich - 04-05-2025, 01:03 PM
RE: Zenith H725 - by EdHolland - 04-05-2025, 06:10 PM
RE: Zenith H725 - by EdHolland - 04-06-2025, 04:04 PM
RE: Zenith H725 - by EdHolland - 04-06-2025, 07:40 PM
RE: Zenith H725 - by Arran - 04-07-2025, 02:34 PM
RE: Zenith H725 - by EdHolland - 04-07-2025, 05:32 PM
RE: Zenith H725 - by EdHolland - 04-08-2025, 05:51 PM
RE: Zenith H725 - by Arran - 04-08-2025, 06:34 PM
RE: Zenith H725 - by EdHolland - 04-08-2025, 08:23 PM
RE: Zenith H725 - by David - 04-08-2025, 08:52 PM
RE: Zenith H725 - by EdHolland - 04-10-2025, 01:43 PM
RE: Zenith H725 - by David - 04-10-2025, 04:06 PM
RE: Zenith H725 - by EdHolland - 04-10-2025, 06:06 PM
RE: Zenith H725 - by EdHolland - 04-20-2025, 05:09 PM
RE: Zenith H725 - by Paul Philco322 - 04-20-2025, 07:13 PM
RE: Zenith H725 - by David - 04-20-2025, 08:47 PM
RE: Zenith H725 - by radiorich - 04-21-2025, 09:43 AM
RE: Zenith H725 - by EdHolland - 04-24-2025, 08:04 AM



Users browsing this thread: 2 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 2218 online users. [Complete List]
» 2 Member(s) | 2216 Guest(s)
AvatarAvatar

>