Posts: 3,231
Threads: 59
Joined: Apr 2011
City: Lexington, KY
(06-03-2015, 02:29 PM)dseverson Wrote: .......Couple quick questions about mica caps. How important are they and, by looking at the schematic, is there a way to tell what pins the 250mmf mica is conttected to on the 50L6GT? http://www.nostalgiaair.org/pagesbymodel...014176.pdf They can be pretty important, but I don't think the 250 at the 50L6 is your problem. But to answer your question you'd refer to a tube chart to figure out the pin #'s:
http://www.mif.pg.gda.pl/homepages/frank...25L6GT.pdf
In this case it is between pin 8 (cathode) and pin 5 (grid 1).
A tube manual is pretty handy to have around, but here is an RCA manual that is a free download:
http://bitsavers.trailing-edge.com/pdf/r..._Jul63.pdf
John KK4ZLF
Lexington, KY
"illegitimis non carborundum"
(This post was last modified: 06-03-2015, 04:00 PM by Eliot Ness.)
Messages In This Thread
RE: 42-PT-93 Please Help - by Eliot Ness - 06-03-2015, 03:50 PM
Users browsing this thread: 3 Guest(s)
|
|
Recent Posts
|
|
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 |
|
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 |
|
Who's Online
|
There are currently 2013 online users. [Complete List]
» 4 Member(s) | 2009 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
