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

Power supply design needed from master designer Terry
#6

I feel like the ghost of Christmas past, Terry....even though the other power supply wasn't done around Christmastime.

Here's the full schematic which may be easier to read than the screen capture I posted:

http://www.nostalgiaair.org/PagesByModel...017167.pdf

I thank you very kindly for the ideas to modify the power supply design to accommodate the vibrator supply, and may have to go that route, but I'd like to consider this first...

After the success with the last power supply in 2017, and while everything was still available. I purchased a second set of components figuring I'd be able to use it for another farm set. So basically I have everything here to build the original one again and am wondering if there's a way to use that on this Silvertone by eliminating that neat little metal box that contains the vibrator supply?

Here's a crop of that section of the schematic:

   

I'm only seeing 3 wires coming out of that metal box. One is grounding the box to the Negative - cable, another is going to the off/on switch, and the third going to the positive side of the 12 MFD electrolytic and to L6 (and points beyond). In theory it looks simple enough to eliminate but of course may not be. 

So to pose an overly simple question to a complicated problem, (but one that would make it a whole lot easier for me to understand), with the box eliminated, where is the best place to connect A + & A - and B + and B - using your original power supply? 

I'll wait for you to stop laughing!

Greg V.
West Bend, WI
Member WARCI.org


Messages In This Thread
RE: Power supply design needed from master designer Terry - by NostalgiaRadioTime - 01-02-2022, 01:21 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
PT 6 chassis screws size???
Have this done except for missing chassis screws. It looks like 1 inch 6/32 sheet metal screw may work but can anyone s...bridkarl — 10:32 PM
Philco model 38 code 121 not receiving signal.
Hello Stormlord, Well done on rewinding that coil it turned fairly good for your first one. Sincerely Richardradiorich — 09:12 PM
Philco model 38 code 121 not receiving signal.
Well here it is. It ain't pretty, but hopefully it'll work. I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM

[-]
Who's Online
There are currently 953 online users. [Complete List]
» 2 Member(s) | 951 Guest(s)
AvatarAvatar

>