Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Why are there two different electrolytic caps in my Hippo?
#1

Re-capped a 48-460, my first time with one of these radios and there were two electrolytics in it. One was a Philco brand probably the original, a 30/25/20. Then there was another, an Aerovox 50/50 with positive leads going to the rectifier tube and the neg lead wrapped around the lead of, if I recall corectly the big .04 cap. Didn't see this on the schematic, but I replaced both of them anyway. Radio works pretty good but still getting a bit of hum. I'm just thinking of taking out the caps that I used to replace the 50/50 cap (I used two 47s) and just see what happens with that. A friend of mine who knows his way around this stuff pretty good seems to think the additional cap was put there as a replacement for the original Philco cap that probably failed at some point but when the repair was done they didn't bother taking that old one out. If that's the case, seems kinda sloppy to me.


Messages In This Thread
Why are there two different electrolytic caps in my Hippo? - by transitony - 11-05-2013, 05:55 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

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

>