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

37-650 Success- and questions...
#1

This is a "recap" of another posting I made, but I decided to break it out and give it its own subject thread... Thanks for the help!...

After an intensive recap, resistor replacement, and rewiring, my 37-650 is up an running...

Well, I've had her up and running for a couple hours now: while she is reasonably volumned, I am wondering if she may be a little quiet- and if so, how would I go about rectifying this? I found(before I added a rough wire antenna along the wall) that if I touched the top terminal of the 6A8G Det-Osc tube, the volume would pick up. With regard to the tubes, I replaced one of the two 6F6G tubes- and the other is a 6F6GT. And I seem to recall it(the GT) being a touch weak. Could this be the cause of lower than optimum volume?

All switches seem ok- I get nice tone change with the tone control.

AM and the first SW band seem fine- couldn't find anything on the top SW band, but I will try later in the day. With the antenna(just a long wire attached to the 1 terminal, and running between 6 and 8 feet high, about 30' long) in place, I get all sorts of stations- I found a Buffalo, NY station about 1520, which plays old stuff. I am outside of Philadelphia, so I know I'm catching a good signal.

I am pretty sure my Shadow Meter is not operating properly- I read through the information on Chuck's site, but I see no part which would operate as described in the way of a mgnetically induced flap- I am of the opinion it has been removed from the unit for some reason. All I get for display from it is a nice bar of light above the dial.

The dial lamp seems to be operating nicely- I like the way it back glows and has the well defined indicator line.

Anyway, any suggestions to how to inprove performance greatly appreciated.(All caps, bakelites, resistors, most wires, replaced or rebuilt)

Thanks!
Scott

Old Cars, Old Radios, Old Pipes and Young Women... What more is there?


Messages In This Thread
37-650 Success- and questions... - by Robbie Roberts - 01-04-2006, 11:46 AM
[No subject] - by Jerry Huelsbeck - 01-04-2006, 12:16 PM
[No subject] - by Robbie Roberts - 01-04-2006, 12:21 PM
[No subject] - by Jerry Huelsbeck - 01-04-2006, 12:37 PM
[No subject] - by Robbie Roberts - 01-05-2006, 09:11 AM
[No subject] - by Chuck Schwark - 01-05-2006, 09:52 AM
[No subject] - by Robbie Roberts - 01-05-2006, 09:26 PM
[No subject] - by Robbie Roberts - 01-11-2006, 07:16 PM
Tube issue? - by Robbie Roberts - 01-12-2006, 07:49 PM
[No subject] - by Ron Ramirez - 01-12-2006, 08:22 PM
[No subject] - by Robbie Roberts - 01-12-2006, 08:30 PM



Users browsing this thread:
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM

[-]
Who's Online
There are currently 2158 online users. [Complete List]
» 1 Member(s) | 2157 Guest(s)
Avatar

>