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

Philco 90- not much volume
#1

I have recapped my Philco 90A (early model w/45 push pull tubes) and replaced a couple of out of tolerance resistors. All tubes check good, all shields in place, bakelites restuffed. I am receiving 2 stations very clearly, the loudest is close to my home, the 2nd is a little farther away and not as loud but still easily hearable. After this I have to really strain to hear other stations. Is this all the volume I can expect on farther stations with this radio? I am using a 100' wire antenna 25' off the ground. My RCA 17K is picking up a 1000w station 30 miles away right now like it is next door. Have I missed something? Thanks for all suggestions,
Doc
#2

1. Have you performed the alignment? Without it your gain could be really off.
2. Just in case check the Antenna input RF coil 2 for continuity, and also the primary of the coil 7 (or which is the same, plate voltage on the first 24A tube).

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#3

As Mike said, most likely an open winding in one of the RF transformers  Check to make sure you have plate voltage on the 24 tubes.

Steve

M R Radios   C M Tubes
#4

I'm on it. I'll let you know what I find. Thanks!
#5

While checking voltages I found a 1 meg resistor to the grid of the 1st audio tube that was reading 2.5 meg. Replaced it and now this thing is blasting all across the dial! Thanks guys.
Doc
#6

Congrats. Still, do the alignment.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Studebaker/Philco AC-2687 car radio
Hi Pdouglasti, Phirst off, welcome to the Philco Phorum, a Phamily Phriendly place phull of phun pholks and all things ...MrFixr55 — 07:37 AM
Philco 46-480 Electronic Restoration
Hi Richard, It is starting to get nice on LI also.  However, this week is a total wipeout.  I am in a really good Ca...MrFixr55 — 06:48 AM
Philco 46-480 Electronic Restoration
At long last, it is aligned! I’ve uploaded a couple of new videos to YouTube to demonstrate. YouTube picked up on Hall a...jrblasde — 10:08 PM
Studebaker/Philco AC-2687 car radio
Hello Phil, Welcome aboard what is the model number of that radio ? Sincerely Richardradiorich — 10:06 PM
Studebaker/Philco AC-2687 car radio
Just speculating of course, but you could probably find another transformer from another car radio of the same era, pref...Arran — 09:00 PM
Studebaker/Philco AC-2687 car radio
Hello I am new here and I could use some advice. I am working on my 1955 Stude/Philco car radio and have determined tha...Pdouglaski — 06:43 PM
Philco 42-345 Restoration/Repair
Thank you MrFix55 and GarySP with helping with the Antenna, for now I am placing the Antenna on the back burner and work...osanders0311 — 02:24 PM
The list of my radio & TV collection!
Yes, Michael. But strangely enough, I managed to keep the original veneer. I must admit that I don't really like it, so ...RadioSvit — 02:21 PM
The list of my radio & TV collection!
Good radio. I bet there was a lot of veneer fixing.morzh — 02:16 PM
Philco 46-480 Electronic Restoration
>> it is because I am retired and a little demented. You have just the right amount of it. No perfectly sane p...morzh — 02:14 PM

[-]
Who's Online
There are currently 2072 online users. [Complete List]
» 2 Member(s) | 2070 Guest(s)
AvatarAvatar

>