Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

38-116 Code 121 Powering Up Help
#57

Hey Folks -

So i got the radio subchassis put back together and have been testing the last month as I have had time. The volume is not strong - but I am picking up stations across all 5 bands. because the volume is weak, I have testing all the usual things- the 2 = 6L6G tubes are good and strong (nos from Bob Dobush) I have a replacement output transfromer - hammond 125 e using pins 4 and 6 for the secondary. I have a new rebuilt input transformer. I have check all the other tubes including the 6J5 driver and all check good - no shorts or any other issues. I also did an alignment of the broadcast band since i thought that could be impacting volume - but still not "booming" like it should be. I have checked the caps and resistors around the 6L6 tubes and driver tubes and they check good (particuarily resistors 134 and 135) I have noticed that the volume starts out louder and then once the tubes warm up its get lower. I am at a loss for what the issue could be at this point and it does not seem to be the obvious things. Really need some help on figuring out what the cause of the low volume is. -- Andy

Andy Sorrell
Palmyra, Virginia


Messages In This Thread
38-116 Code 121 Powering Up Help - by AVSorrell - 07-17-2017, 08:12 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-17-2017, 08:21 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-17-2017, 09:47 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-18-2017, 08:57 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-18-2017, 12:05 PM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-19-2017, 09:08 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-30-2017, 02:49 PM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-30-2017, 08:10 PM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-31-2017, 08:42 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-31-2017, 01:27 PM
RE: 38-116 Code 121 Powering Up Help - by AVSorrell - 09-24-2017, 02:17 PM
RE: 38-116 Code 121 Powering Up Help - by Chris h - 09-26-2017, 01:19 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM

[-]
Who's Online
There are currently 1956 online users. [Complete List]
» 1 Member(s) | 1955 Guest(s)
Avatar

>