Zenith H725

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

Linear Mode

Zenith H725

EdHolland
Super Moderator

Posts: 1,399
Threads: 46
Joined: Nov 2017
City: Menlo Park State, Province, Country: CA

#61

04-02-2025, 08:39 PM

I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. The other idea I had was to fold several layers of alumin(i)um foil and attach it with Kapton tape. That would be a safe and effective heat shield.

I don't hold with furniture that talks.

Find

« Next Oldest | Next Newest »

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

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
1949 Motorola 5A9M
Nice job on the battery, Bob. Can the box be opened to replace the 9 volters?RodB — 11:32 AM
Philco 46-1209 strange behavior
Thank you for the detailed response MrFixr. To clarify, the hum starts when the tubes are fully warmed up, and goes a...sq65 — 09:15 AM
Philco 46-1209 strange behavior
MrFixr The chassis, if there is no ground pin in the AC plug, due to the Y-caps from L/N to the chassis, is at 60VAC re...morzh — 08:47 AM
schematics
thanks I'll try the polar caps seperatelymseno — 07:38 AM
Philco 46-1209 strange behavior
Hi SQ55, A strange issue indeed! Just so I have you straight, on a dim bulb you get normal operation after the set warm...MrFixr55 — 12:44 AM
schematics
I think mseno is talking about cap# 27 which is a multisection but in a paper tube. In cases like that I've usually be ...klondike98 — 11:25 PM
schematics
Ohrenet :roll: For their price I would chase a fly in a field. :twisted:Vlad95 — 11:21 PM
1949 Motorola 5A9M
A bit more work on the Motorola. I got the repro battery together right up until I realized the snap clips on the top o...klondike98 — 10:45 PM
schematics
Often restuffed. If a twistlock, Hayseed Hamfest makes modern replacements. morzh — 09:18 PM
schematics
Looking for a multi-sectional 8+16 mfd cap. Can't find any suppliers that carry it.mseno — 08:45 PM

Who's Online

There are currently 1148 online users. [Complete List]
» 1 Member(s) | 1147 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me