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

Recapped My Predicta Tandem, I don't know what to do
#26

I  had my electronics store Cross over the old part number and they said 1N4007 exceeds the original diodes. So I have 1N4007's in there, I did notice that the picture was slightly better with the original diodes, but the voltage was the same. 

I have regular electrolytics om C1,2, and 3, I have orange drops everywhere else I can put them. 


C1 is 150uf 
C2 is 20uf , 22uf, 100uf, 150uf
C3 is 22uf, 10uf, 220uf

TVMAN the original diodes were silicone, but I have modern 1N4007's in there now I left the old ones just laying in there disconnected. The originals had a Philco part # of 34-8048-1 with replacements made by Federal having the part number HF504, international brand is SD-500, and Sarkes Tarzian part# M500. Those are the numbers we used for cross referencing them at the store.


I attached a picture of the setup below. If those ceramic caps shorted could they be dragging my voltage down? I've been checking my choke voltage on that read wire that's leads to the choke.


Attached Files Image(s)
   


Messages In This Thread
RE: Recapped My Predicta Tandem, I don't know what to do - by apERNA1985 - 01-07-2022, 06:08 PM



Users browsing this thread: 27 Guest(s)
[-]
Recent Posts
Help identifying
Welcome to the Phorum! With the cabinet being custom it makes it harder to be certain about the radio and phono model...klondike98 — 09:11 PM
Using a loop on a long wire 60B
There's also many DIY loop antenna options on YouTube your son may want to check out. Some are quite decorative and can ...RodB — 03:36 PM
Using a loop on a long wire 60B
It could be hit or miss getting a salvaged loop to resonate for the desired station and it will require some sort packag...Chas — 02:50 PM
Using a loop on a long wire 60B
I searched but couldn't find an exact answer.  I'm giving my son my 60B that I electrically restored some 8 years ago (I...JohnCT — 12:49 PM
38-10T chassis Restoration begins
Hello Mr Fixr, years ago I had to wash two vcrs one was used by the school disctrict and the other was a family who had...radiorich — 10:53 AM
38-10T chassis Restoration begins
My dad's manager took the NRI course many years ago and gave me his course booklets. One of the course lessons was on r...MrFixr55 — 10:20 AM
Philco 38-2 Low Volume
I have done the RF and magnetic tuning alignment. The magnetic tuning really does its job quite well. Had to do three tr...dconant — 08:41 AM
38-10T chassis Restoration begins
Hello Dan, Very cool !! morzh , I have seen people put computers and other items in the dish washer ! Sincerely Ri...radiorich — 11:26 PM
38-10T chassis Restoration begins
Arran I also washed tuning caps in dishwasher and in soap water without having removed the micas. Upon drying, it wa...morzh — 02:00 PM
38-10T chassis Restoration begins
Hi Richard, I used to build houses and we used a lot of those gold flake counter tops. We even used gold flake ceramic t...dconant — 11:11 AM

[-]
Who's Online
There are currently 2496 online users. [Complete List]
» 1 Member(s) | 2495 Guest(s)
Avatar

>