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
#1

About 5 years ago, Terry supplied me with a great power supply for a Philco Farm set...

   

This past Spring I was gifted a Silvertone model 4640 battery set and thought I'd be able to build another power supply like the above for it. There's just one problem, as you'll see on the schematic below... (besides the 5 bias cells I marked in yellow)

   

This set uses a vibrator supply for the "B". So unless I eliminate that vibrator supply altogether, this power supply design won't work.

I'm leaning towards just eliminating the vibrator supply box altogether, and using the above supply design from Terry. That would eliminate the troublesome vibrator (which may not be any good anyhow).

If I'm able to restore the vibrator supply I guess I just need to feed the radio 6VDC starting with a 120:6 filament transformer? Does AES have one of these?

Maybe Terry can sketch something up or revise the above that would work with this radio? (Happy New Year, Terry!)

Thanks!

Greg V.
West Bend, WI
Member WARCI.org


Messages In This Thread
Power supply design needed from master designer Terry - by NostalgiaRadioTime - 01-02-2022, 01:33 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM
Zenith H725
Ed; One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM
Zenith H725
I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM

[-]
Who's Online
There are currently 1549 online users. [Complete List]
» 1 Member(s) | 1548 Guest(s)
Avatar

>