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

116B (121) won't fly
#12

Let me understand: when you are talking of "strong tone/weak tone" you mean injecting modulated IF signal into (where?) grid cap of the respective tube and hearing it out of the speaker? Right? Right

And do you take the grid cap wire off? Or leave it on the cap? Mostly on. Took cap off 1st det only.

Also, have you replaced the out-of-specs resistors? Double checking out of spec resistors.

And all of the tubes have been tested good? Yes

And you did try to peak 51, 53 and 54 caps in the 1-to-2 IF xfmr (52) and 57 and 59 caps in the 58 IF xfmr?

No I have not. I will do this after checking out of spec resistors.


I've got some time today so I'm on this the rest of the afternoon. If you can think of anything else I need 
to do just let me know.  Thank you. I do appreciate your help

Danny


Messages In This Thread
116B (121) won't fly - by Danny - 05-05-2016, 03:09 PM
RE: 116B (121) won't fly - by morzh - 05-05-2016, 03:42 PM
RE: 116B (121) won't fly - by Danny - 05-05-2016, 06:35 PM
RE: 116B (121) won't fly - by morzh - 05-05-2016, 08:28 PM
RE: 116B (121) won't fly - by Danny - 05-06-2016, 09:34 AM
RE: 116B (121) won't fly - by Danny - 05-08-2016, 06:43 PM
RE: 116B (121) won't fly - by Radioroslyn - 05-08-2016, 07:48 PM
RE: 116B (121) won't fly - by Danny - 05-09-2016, 11:10 AM
RE: 116B (121) won't fly - by morzh - 05-09-2016, 11:57 AM
RE: 116B (121) won't fly - by Danny - 05-09-2016, 04:32 PM
RE: 116B (121) won't fly - by morzh - 05-09-2016, 05:52 PM
RE: 116B (121) won't fly - by Danny - 05-10-2016, 11:10 AM
RE: 116B (121) won't fly - by morzh - 05-10-2016, 11:36 AM
RE: 116B (121) won't fly - by Radioroslyn - 05-10-2016, 02:42 PM
RE: 116B (121) won't fly - by Danny - 05-16-2016, 03:41 PM
RE: 116B (121) won't fly - by Danny - 05-20-2016, 10:04 AM
RE: 116B (121) won't fly - by morzh - 05-20-2016, 10:22 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Rogers Majestic R-646
Today I finished inspecting all the parts. The result is not very pleasing. The first positive news: 1) The power tr...Vlad95 — 11:40 PM
HiFi (Chifi) tube amp build - but my own design.
Well, found muh culprit. After using socket test adapters and finding voltages all ok, swapping 6V6s, no avail, swapped ...TV MAN — 11:18 PM
HiFi (Chifi) tube amp build - but my own design.
Well, maybe - maybe not  :lol: It's been an interesting project so far! Something so simple, yet so cranky. The 1st one ...TV MAN — 05:12 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteres in a while  https://www.radionostalgia.ca/lib/Images/battery/us/burgess1D.jpgi ...Vlad95 — 03:50 PM
Philco Model 16 wiring question
Measure the voltages first, just in case.morzh — 02:19 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteries in a while Mr. Fixer. Boston Edison always used Burgess in their Bright Star yellow...Paul Philco322 — 02:17 PM
1949 Motorola 5A9M
Thanks Sam. I'll let you know. I can probably scare some up from the local radio club.klondike98 — 02:07 PM
Philco 89 Code 123 Osc Coil
Hello,  I thought I would post my findings on my bad oscillator tickler coil. There were 27 turns on the outer coil b...dconant — 12:38 PM
Philco Model 16 wiring question
Thanks Morzh. So it appears I did wire it incorrectly and I have to switch the wires between pins 2 and 4.bobclausen — 09:24 AM
Philco 46-1209 strange behavior
No, it's not a problem, just during certain condition it could show up. Yes, an internal tube short could do that too. ...morzh — 09:13 AM

[-]
Who's Online
There are currently no members online.

>