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

Help with Bosch 48
#1

Well i finally finished recapping the Bosch48 but its pulling way too much current, like 146watts. Somethings i know:
1. Transformer is putting out correct filament voltages
2. Resistance on 80 rectifier plates is 160ohms, 80ohms each side to ground.
3. 80 rectifier filament pins measure .1ohm
4. When 80 tube is pulled watts are 40.
5. All filter caps replaced are non polarized polys.

Anything i can try to verify if the transformer is good and also locate the source of the draw


Attached Files
.pdf schematic.pdf Size: 448.87 KB  Downloads: 128


Messages In This Thread
Help with Bosch 48 - by daveone23 - 07-12-2024, 09:27 AM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 10:43 AM
RE: Help with Bosch 48 - by daveone23 - 07-12-2024, 12:19 PM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 12:52 PM
RE: Help with Bosch 48 - by daveone23 - 07-12-2024, 03:33 PM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 03:42 PM
RE: Help with Bosch 48 - by daveone23 - 07-12-2024, 03:56 PM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 04:07 PM
RE: Help with Bosch 48 - by daveone23 - 07-12-2024, 04:58 PM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 05:24 PM
RE: Help with Bosch 48 - by daveone23 - 07-12-2024, 05:57 PM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 06:52 PM
RE: Help with Bosch 48 - by Chas - 07-12-2024, 07:15 PM
RE: Help with Bosch 48 - by daveone23 - 07-12-2024, 07:24 PM
RE: Help with Bosch 48 - by morzh - 07-12-2024, 09:01 PM
RE: Help with Bosch 48 - by daveone23 - 07-13-2024, 12:12 PM
RE: Help with Bosch 48 - by Chas - 07-13-2024, 12:56 PM
RE: Help with Bosch 48 - by daveone23 - 07-13-2024, 02:51 PM
RE: Help with Bosch 48 - by Chas - 07-13-2024, 03:07 PM
RE: Help with Bosch 48 - by MrFixr55 - 07-13-2024, 04:06 PM
RE: Help with Bosch 48 - by daveone23 - 07-13-2024, 05:07 PM
RE: Help with Bosch 48 - by daveone23 - 07-13-2024, 08:50 PM
RE: Help with Bosch 48 - by MrFixr55 - 07-14-2024, 12:17 AM
RE: Help with Bosch 48 - by morzh - 07-14-2024, 12:21 AM
RE: Help with Bosch 48 - by daveone23 - 07-17-2024, 08:26 PM
RE: Help with Bosch 48 - by daveone23 - 07-18-2024, 12:39 PM
RE: Help with Bosch 48 - by morzh - 07-18-2024, 09:19 PM
RE: Help with Bosch 48 - by MrFixr55 - 07-18-2024, 09:36 PM
RE: Help with Bosch 48 - by daveone23 - 07-19-2024, 01:13 PM
RE: Help with Bosch 48 - by Eliot Ness - 07-19-2024, 04:01 PM
RE: Help with Bosch 48 - by daveone23 - 07-19-2024, 04:16 PM
RE: Help with Bosch 48 - by MrFixr55 - 07-19-2024, 10:35 PM
RE: Help with Bosch 48 - by morzh - 07-20-2024, 12:15 AM
RE: Help with Bosch 48 - by MrFixr55 - 07-20-2024, 08:43 AM
RE: Help with Bosch 48 - by daveone23 - 07-20-2024, 11:15 AM
RE: Help with Bosch 48 - by morzh - 07-20-2024, 08:14 PM
RE: Help with Bosch 48 - by daveone23 - 07-21-2024, 11:39 AM
RE: Help with Bosch 48 - by morzh - 07-21-2024, 02:37 PM
RE: Help with Bosch 48 - by daveone23 - 07-21-2024, 03:50 PM
RE: Help with Bosch 48 - by morzh - 07-21-2024, 08:55 PM
RE: Help with Bosch 48 - by daveone23 - 07-22-2024, 12:54 PM
RE: Help with Bosch 48 - by morzh - 07-22-2024, 09:20 PM
RE: Help with Bosch 48 - by RodB - 07-23-2024, 10:36 AM
RE: Help with Bosch 48 - by daveone23 - 07-25-2024, 03:39 PM



Users browsing this thread: 5 Guest(s)
[-]
Recent Posts
Philco 50-925 antenna connections
Most loop antenna setups are either one continuous loop with two connections or 2 loops with 4 connections. The latter c...RodB — 02:16 PM
Value of capacitor
Not trying to answer for the OP, just commenting on the thread. According to AI... ...assuming the electrolytic that'...HowardWoodard — 02:09 PM
Philco 50-925 antenna connections
Hello Keith! I've updated your thread with the proper model number. Take care, - GaryGarySP — 01:10 PM
Value of capacitor
Why are you having to replace it? Does it measure out of tolerance? Is it mechanically damaged?DaleHCook — 07:50 AM
462ron
Hi Keith, here is the official Philco service info found in the Philco Library under service info……https://philcoradio.c...462ron — 07:23 AM
My collection presentation
This article has been completely updated and finished. The beginning of a portable collection.Vlad95 — 11:49 PM
Philco 50-295 antenna connections
Thanks Rod, That makes perfect sense. Is there a way to edit my post? It's a Philco 50-925 and not a Philco 50-295. D...keith49vj3 — 09:55 PM
Philco 50-295 antenna connections
C is for an external speaker.RodB — 08:39 PM
Philco 370LZ chair side not a 71LZ
Can you send a couple of pictures?slford310 — 07:11 PM
Philco 370LZ chair side not a 71LZ
Thank you for the reply. After much studying I figured it just sat there and you have to open the top and pull up and/o...Villager61 — 06:42 PM

[-]
Who's Online
There are currently 1211 online users. [Complete List]
» 1 Member(s) | 1210 Guest(s)
Avatar

>