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:
[-]
Recent Posts
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM
Eico 232 VTVM Schematic
Is that a battery holder?morzh — 04:43 PM
Eico 232 VTVM Schematic
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM
Var resistor id
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should know wher...morzh — 03:23 PM
Var resistor id
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms. This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM
Var resistor id
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM
The list of my radio & TV collection!
Thanks Richard. I hope you enjoy it. Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM
The list of my radio & TV collection!
Hello RadioSvit, first all happy new year ! I will watch your new videos this week. Sincerely Richardradiorich — 09:19 AM

[-]
Who's Online
There are currently 4140 online users. [Complete List]
» 2 Member(s) | 4138 Guest(s)
AvatarAvatar

>