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

Philco 116B No radio reception
#16

There are three connections at the bottom of 101.
One connects to the junction of 98/99. Internally it connects to the plus side of the 8mfd cap. It has about +300vdc and is probably is the red one.
One connects to chassis ground internally is connects to the + side of the 10mf 50v cap. Probably silver, unfortunately the schematic doesn't list the color on the bottom of the cap.
The tab on the side connects to the tab on the tab on #100 (the other filter cap) and the center tap of the high voltage winding (B-). Internally it's connected to - side of the 8 mf and the 10mf at 50v. It has about -20vdc at this connection.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
#17

Quote:There are three connections at the bottom of 101.
One connects to the junction of 98/99. Internally it connects to the plus side of the 8mfd cap. It has about +300vdc and is probably is the red one.
One connects to chassis ground internally is connects to the + side of the 10mf 50v cap. Probably silver, unfortunately the schematic doesn't list the color on the bottom of the cap.
The tab on the side connects to the tab on the tab on #100 (the other filter cap) and the center tap of the high voltage winding (B-). Internally it's connected to - side of the 8 mf and the 10mf at 50v. It has about -20vdc at this connection.


OK. well like I said I have the capacitor "restuffed" except for the negative leads which I still need to get the negative leads of the new capacitors attached somewhere.




Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM

[-]
Who's Online
There are currently 5078 online users. [Complete List]
» 1 Member(s) | 5077 Guest(s)
Avatar

>