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

12volt power supply
#1

Picked up a 2amp 12volt power supply figured i could use the transformer for bucking line voltage. Open the unit up very basic on/off switch plus pilot light on primary side. Secondary 24volts out center tap, 2 didoes 4700uf 16 volt ecap 150ohm bleeder resistor ok that looks real simple. looking at the center tap there a small tube about one inch long one fourth inch dia. What the heck is it? I replaced the diodes ecap and bleeder just to see if it works. Output 16volts dc no load. two little wires in the tube glow down at the base. The thing was made in Japan guess late 60's early 70's. Sorry not able to find a model number name American Electric. David


Messages In This Thread
12volt power supply - by David - 04-18-2014, 08:35 PM
RE: 12volt power supply - by morzh - 04-18-2014, 09:33 PM
RE: 12volt power supply - by David - 04-19-2014, 08:59 AM
RE: 12volt power supply - by morzh - 04-19-2014, 12:25 PM
RE: 12volt power supply - by codefox1 - 04-19-2014, 01:29 PM
RE: 12volt power supply - by morzh - 04-19-2014, 02:06 PM
RE: 12volt power supply - by jerryhawthorne - 04-19-2014, 07:57 PM
RE: 12volt power supply - by David - 04-20-2014, 09:22 AM
RE: 12volt power supply - by morzh - 04-20-2014, 02:50 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
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
The list of my radio & TV collection!
Magical chords of forgotten melodies, old nostalgic music on an old radio... Saturday night blues on the Mid-Waves on an...RadioSvit — 12:20 PM
Philco 42-345 Restoration/Repair
Thank you MrFixr55 the issue with this radio is that the internal coil antenna is missing and there was a wire in its pl...osanders0311 — 11:34 AM
Philco 610B oscillator wiring
Regarding the oscillator circuit which is comprised of the 6A7's cathode, control grid, and screen grid. These elements ...Radioroslyn — 10:33 AM
Philco 42-345 Restoration/Repair
Hi OSanders, First off, welcome to the Philco Phorum where Phine Phamily-Phriendly Pholks Phull of Philco Phacts and P...MrFixr55 — 08:41 AM
Philco 42-345 Restoration/Repair
Today I've been reading through the site trying to learn more about this radio. I also soldered the lose power cord cabl...osanders0311 — 08:24 PM
Philco 610B oscillator wiring
Thanks David! I do have that same later prodution model 610 schematic. I've also studied the Philco service bulletins fo...Tubester — 08:12 PM
Philco 610B oscillator wiring
Some info from Beitmans says late production. David   David — 06:06 PM

[-]
Who's Online
There are currently 2264 online users. [Complete List]
» 1 Member(s) | 2263 Guest(s)
Avatar

>