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

Model 620 part 57 identification
#1

Newbie question. I see from the Chassis parts list that part 57 is listed as a ".1 MFD tubular condenser, It's not a tubular condenser it's a Bakelite
block with multiple connections. What is you experience on this, how many cap are there inside of it, and is the parts list identification incorrect? Thanks for the help.

God Bless,

Dave B
#2

Sometimes run into these things with a Philco. See what the part no. is on side of the bakelite block. Then see if it is listed on the philcorepairbench.com. Some of the lugs on the block may be only tie points for other things.

Richard
#3

In Service Bulletin 218, for the Model 620, capacitor #57, is a wax-paper tubular cap; 0.1uF, p/n 30-4122.

In the later production run chassis', see Service Bulletin 218A, that cap is now a bakelite block cap; 0.09uF, p/n 4989-SG. Essentially a 0.1 uF cap, in today's standard values.
#4

Took a closer look at it, can't see any numbers on the one side and the other side is not real accessible. It does not look like just a junction block in that the power cord ties into two of it's terminals. I also noted leads coming up from inside the block indicating that there are cap(s) inside it. Perhaps the tubular cap, part 57 is inside the block, I really don't know. I just finished rebuilding the # 20 bakelite block and PTL it came out OK. Perhaps someone else knows about this mysterious bakelite block listed as a tubular ca.? Thanks. Icon_rolleyes

God bless,


Dave
#5

Chuck, thank you, boy you get rate to the nitty gritty. I thought there was a cap inside that block, apparently there is only one cap inside it, correct? I bought a cap kit and replaced all the other caps but only have one left over, a 334 uf and can't figure out where it goes. I rebuilt the other two bakelite blocks and PTL they both worked out but this block, part 57, seems to be a really busy place with all sorts of connections to it. Should be some interesting getting that one out and rebuilt. Any suggestion please let me know. Thanks. Icon_biggrin

God bless,

Dave




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
VTVM meter moves when my hand is next to it & not on
Haha! I hope so. It seemed rather lost and forgotten languishing in the frozen Northeast of England.EdHolland — 02:36 PM
VTVM meter moves when my hand is next to it & not on
Ed - it's in the Cayman's enjoying the good life.RodB — 02:14 PM
VTVM meter moves when my hand is next to it & not on
Static electricity - but the other chaps beat me to it again. I've seen this before with analogue meters. I've also ...EdHolland — 01:56 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM
Philco 610B oscillator wiring
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM
HiFi (Chifi) tube amp build - but my own design.
Tim; I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM

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

>