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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Bakelite blocks with mica caps
#1

Working on a 60b that has a 8035b block. This has two 110pF mica caps in it.
My question is:
Are these to be replaced just like all of the paper types, or are the mica blocks usually left alone like the regular molded micas are?
#2

If they are like the ones in a 37-116, they are paper not mica.

"I just might turn into smoke, but I feel fine"
http://www.russoldradios.com/
#3

They are paper types. I replace with Silver Mica types.
That value is available at part suppliers.

Chuck
#4

I've seen a few 8035 bakelite blocks that actually had mica caps in them, but most have paper caps inside. Of course, you don't know until you remove the innards from the bakelite block shell. As Chuck said, go ahead and replace with new silver mica caps.

--
Ron Ramirez
Ferdinand IN
#5

Hi All;
I used a pair of 56pf mica caps for each 110pf cap.. I don't know but you might be able to use a 120pf mica cap in each one, If you can't find a 110pf cap..
THANK YOU Marty
#6

Yes, you can use 100 pF, 110 pF, or 120 pF. It is easier to find 100 or 120 pF now as 110 pF is no longer a standard value. The radio will work fine with any of those values.

--
Ron Ramirez
Ferdinand IN
#7

Great.
Ive got 100pF silver micas that I will use.
Thanks guys!




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Refinishing Ideas
Hi Poulsbobl, I think that you could get away with it.  In the Philco Library, there is a parts listand specs for sp...MrFixr55 — 11:54 PM
Philco 46-480 Electronic Restoration
The sleeving for the transformer arrived early, so I went ahead and finished reassembling. The chassis looks far better ...jrblasde — 10:15 PM
Philco 610B oscillator wiring
I don't know what you are referring to when you say "tube cathode ground". Ground is a connection to the chass...RodB — 05:56 PM
Zenith H725
Good points, Arran. I haven't encountered this problem with any other radio (all earlier vintages), so am learning here....EdHolland — 05:32 PM
Zenith H725
Ed; One thing that I will say about these is that Brand Z was considerate enough to make these mica caps easily acces...Arran — 02:34 PM
Philco 610B oscillator wiring
Do you know what run # your chassis is? It took me a while to find what you were basing updates/modification on as I did...Radioroslyn — 07:34 AM
Need to purchase some accessories for restoration of my Old Philco Radio
COLLEAGUES, Thank you all for such good and important suggestions as how to find good replacement parts. I will go fo...palonso — 07:05 AM
Zenith H725
Here's what the inside of AM IFT2 looked like, and the other pic shows the discs I made to take place of the mica and ke...EdHolland — 07:40 PM
Zenith H725
IF2 will need replacement caps. The arcing was severe enough that the mica is pitted and holed where the HT flashed over...EdHolland — 04:04 PM
My Philco 37-116 Restore
Measuring from center tap like the tube voltages show. Cap 127 is isolated from ground. Cap 127 shown in upper left of p...dconant — 08:05 AM

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

>