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

audio woes on the 38-5
#10

Well here's where I stand tonight. I checked pin 5 of the 6a8 and get -1.3 VDC. I then checked all of the cathodes and each reads zero volts.

So I decided it's time to get out the signal generator and try to inject a signal. I was getting a signal to pass through the entire audio output section, moved over to the RF section and was poking around a bit. All at once it started to play! I was getting stations throughout the dial, albeit stronger / louder on the lower end of the dial. So, after letting it play a while I decided to upgrade a few of the tubes, as I had some that were Philco brand I wanted to use for originality. I replaced the 6K5, tried it, and it played fine. Moved over to the 6J5, replaced it, and, once again it reverted back to its old dead ways. So I put the original tube back in and STILL nothing!

I had it, and lost it Icon_sad Icon_thumbdown

But, this tells me I have a bad connection or bad solder joint somewhere, and that's what I will concentrate on tomorrow.

So the status for tonight is close, but no cigar.

Greg V.
West Bend, WI
Member WARCI.org


Messages In This Thread
audio woes on the 38-5 - by NostalgiaRadioTime - 01-24-2018, 11:30 PM
RE: audio woes on the 38-5 - by morzh - 01-24-2018, 11:56 PM
RE: audio woes on the 38-5 - by Radioroslyn - 01-26-2018, 01:15 PM
RE: audio woes on the 38-5 - by morzh - 01-26-2018, 02:41 PM
RE: audio woes on the 38-5 - by Ron Ramirez - 01-27-2018, 12:12 AM
RE: audio woes on the 38-5 - by Radioroslyn - 01-27-2018, 12:49 AM
RE: audio woes on the 38-5 - by NostalgiaRadioTime - 01-27-2018, 11:56 PM
RE: audio woes on the 38-5 - by morzh - 01-28-2018, 10:53 AM
RE: audio woes on the 38-5 - by Steve Chambers - 01-28-2018, 11:14 AM



Users browsing this thread: 6 Guest(s)
[-]
Recent Posts
Philco model 60
Yes I was there. I got some real bargains there. Plus a Zenith 7G605 clipper that I have been trying to find for a fair ...Radios1340 — 01:46 PM
The speaker table error?
G  10-1/2"       65, 76, 87, 95 Push-Pull 45's 2766 0.7 550 3200 H   10-1/2"    77, 96 Push-Pull...morzh — 09:26 PM
A Marconi model 86
I have a Stromberg, one of the early ones, seems early 30s. This is what I call a back breaker. None of the early Philc...morzh — 08:28 PM
A Marconi model 86
A backbreaker.....PaulPaul Philco322 — 08:12 PM
A Marconi model 86
>>What a behemoth! A Juggernaut.morzh — 07:47 PM
Philco 70 antenna lead
I am not sure I understood about the coils and the mush. I looked an more than one coil in 20, 70, 90, 60, Zeniths and ...morzh — 07:46 PM
A Marconi model 86
:e_biggrin: What a behemoth!  I hope the final result is as much a quality sounding example!  Keep us posted on your pro...GarySP — 07:32 PM
A Marconi model 86
I should add that the double conversion may only be used on the shortwave bands, but I haven't looked at the schematic t...Arran — 07:27 PM
Philco 70 antenna lead
Yes, that wire will not pick up much interference as routed - the RF at that level won't be affected, and if you have st...radio1 — 07:26 PM
Philco model 60
I'm also a member of MARC. Did you attend the Vintage Electronics Expo in Waterford, MI last month? That's where I got...GarySP — 07:22 PM

[-]
Who's Online
There are currently 6843 online users. [Complete List]
» 2 Member(s) | 6841 Guest(s)
AvatarAvatar

>