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

38-8 no stations
#1

ok, working on a 38-8. total recap, currently have shadow meter bypassed because the coil is open on it. fired up the set. no stations. I assume antenna should be connected to "red" terminal on back.
voltages on the tubes ( for the voltages I have #s for) check out ok.

I can put the signal gen on the red terminal and tune the sig gen to say 700 and I can tune the radio to 700 and there is my tone. I can tune both to other places on the dial and the tone is where it should be.

Now circuits appear to be working but something obviously is not or I would get stations.

What am I missing. bad tube?

I have cleaned the band switch.
#2

You asked the right question: bad tube?

Have you checked your tubes?
#3

not yet, be coming soon to a radio near me....
#4

Well,

As a person who spent half his life troubleshooting electronic systems for a living there is just one piece of advice I can dispense: don't try to figure out what is not working until all your major low-count components are proven.
#5

yeah normally i do first but had skipped that portion ( stupid me) as I have rarely run into bad ones.
I had a bad 6K7 now I have some more issues in the antenna circuit but it is playing now.
#6

Well, that's a start!
Glad to hear it's playing! The rest will be easy Icon_smile
#7

now on to the antenna coil check and to clean the band switch some more and see if that fixes the issue.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
My Philco 37-116 Restore
Are you measuring relative to the centertap or the GND?morzh — 11:57 PM
Philco 610B oscillator wiring
Still not clear on the wiring interface between the 6A7 and oscillator. After refering to the available schematics and s...Tubester — 07:18 PM
Refinishing Ideas
My 37-116 code 121 is the best sounding radio i have...a daily driver. Since we are talking about "changes". ...poulsbobill — 07:18 PM
My Philco 37-116 Restore
Hello, I finally got brave enough to take the cans off the Expander Unit. Got the grid cap wires replaced and back toget...dconant — 06:50 PM
Zenith H725
I got into the first AM IF can today, and found its mica was cracked. Amazing that it was still working. This one makes ...EdHolland — 06:10 PM
Philco model #20
AHH HA , I got it and can’t thank you fellows enough , when I changed the capacitors I took the advice and did not unsol...onlyrick — 02:24 PM
Zenith H725
Hello Ed, yes, I like letting projects run for few days to make sure they don't start acting up . Sincerely Richardradiorich — 01:03 PM
Philco 46-480 Electronic Restoration
I am almost finished with this restoration. All which remains is the power transformer. I cleaned it up some time ago, b...jrblasde — 12:41 PM
Philco model #20
I seem to recall in some TRF sets there being a Local/Distance toggle switch that removes the B+ from the first 24 rf tu...RodB — 09:46 AM
Refinishing Ideas
Hi Doppelganger, After rereading your thread, did you mount the Zenith speakers in the two bottom left and right pos...MrFixr55 — 09:39 AM

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

>