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

Thread Closed

Bakelite capacitor holders
#4

Well...

The previous discussion was about resistors inside bakelite blocks. Eric's question is about bakelite blocks in general.

Hi Eric! Icon_smile

I think Philco did this for several reasons. I can think of a few, perhaps others will chime in with their opinions as well.

1. When Philco started producing the bakelite blocks in 1930, radio was still relatively "new" and manufacturers were still secretive about the components inside their sets. Placing capacitors inside bakelite shells added to the mystery somewhat.

2. Bakelte blocks allowed for convenient tie points for wiring including points to ground in many cases.

3. It was thought at the time that sealing the paper capacitors in high temperature wax would add to their life. Indeed, those capacitors often lasted for several decades. Of course, 80+ years on, they have all gone bad by now and require replacement. (And the wire resistors that were put into some blocks are often still good!)

That's all that I can think of right now...

Yes, they can be a pain in the you know what to replace, but the nice thing is that we can now clean out the old guts, pop in new yellow film capacitors, put the blocks back in place and you can't tell they have been touched save for the new solder on the terminals. Icon_thumbup

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Bakelite capacitor holders - by Eric Smith - 05-18-2016, 09:24 PM
RE: Bakelite capacitor holders - by morzh - 05-18-2016, 10:24 PM
RE: Bakelite capacitor holders - by Steve Davis - 05-18-2016, 11:35 PM
RE: Bakelite capacitor holders - by Ron Ramirez - 05-19-2016, 06:09 AM
RE: Bakelite capacitor holders - by klondike98 - 05-19-2016, 08:03 AM
RE: Bakelite capacitor holders - by Eric Smith - 05-19-2016, 04:07 PM
RE: Bakelite capacitor holders - by morzh - 05-19-2016, 08:31 AM
RE: Bakelite capacitor holders - by Ron Ramirez - 05-19-2016, 08:40 AM
RE: Bakelite capacitor holders - by morzh - 05-19-2016, 08:47 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
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

[-]
Who's Online
There are currently 2652 online users. [Complete List]
» 1 Member(s) | 2651 Guest(s)
Avatar

>