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

38-116 Code 125 Tube Heater Circuit Issue
#8

The rectifier tube is a 5Y4G.  If I continue with this set, I should get a 5X4G.  I measured -17 vdc on each 6L6 grid pin 5.  I also measured -17 vdc at the intersection of resistors 115 and 116.  I had to replace both of those and didn't have exact values for replacement so I used a 3300 ohm resistor for the 3000 (115) and a 2200 ohm resistor for the 2000 (116).  Also, both 6L6's tested on the borderline of acceptable (70% on my Jackson tester) and they both rattle.  I think the 5Y4 also tested weak.  I read that the 5Y4 is only for moderate dc requirements.  Maybe a weak one just won't hack it with this radio.


Messages In This Thread
RE: 38-116 Code 125 Tube Heater Circuit Issue - by LarryFS - 09-21-2019, 08:54 PM



Users browsing this thread: 6 Guest(s)
[-]
Recent Posts
An attempt to remove the Field Coil from a G speaker
Mike, Lookup  murrayatuptown on ARF. Seems he has a dilemma with surplus field coils. Could get lucky and have what y...Chas — 01:26 PM
Atwater-Kent 84, restoration.
Hello Mike, I have not checked to see if my console has a fuse or not and far as sets go I have early 30s General Motor...radiorich — 11:25 AM
Atwater-Kent 84, restoration.
Ron I forgot, but when you said "phone number", I remembered, caus I usually remember how I act when I need...morzh — 11:12 AM
Atwater-Kent 84, restoration.
You have an extensive collection of Philcos, Mike! I’m always excited to see each new one. Agreed on the power supply fu...jrblasde — 10:50 AM
462ron
Hi Mike, that 84 sure looks great. You don’t often see these antique radios with a fuse like yours has. I usually instal...462ron — 10:22 AM
Atwater-Kent 84, restoration.
Hello Mike, Wow ! far as my AK it does work and the cabinet is in nice shape so is my chassis anyway here is a photo of...radiorich — 02:59 AM
Atwater-Kent 84, restoration.
Nice radio, Mike! Here's hoping it was well rebuilt. Take care and BE HEALTHY! GaryGarySP — 12:12 AM
Atwater-Kent 84, restoration.
Rich yes, this is the way I got it. I have just put it on the table and took it apart. I suspect it even might work,...morzh — 11:31 PM
Atwater-Kent 84, restoration.
Hello mike, What nice looking radio I have one AK in my collection it's a console I have not started restoring it yet ....radiorich — 11:21 PM
91H Code 126 Restore
Just to make it more confusing here is another model 91 schematic that doesn't show parts with dotted lines in that spot...Arran — 10:37 PM

[-]
Who's Online
There are currently 2651 online users. [Complete List]
» 2 Member(s) | 2649 Guest(s)
AvatarAvatar

>