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

118 Start Up Question
#1

All recapped and off resistors changed (hopefully correct). Came up nice with just a little static. Started checking things by moving a short antenna around a got my SSTrans fairly loud with a short antenna on the grid cap of the 78 first IF! Nothing with the antenna anywhere in front of this. Strange.
Started injecting an RF signal at the antenna input, nada. Hooked about 6 feet of wire back on the above 78 grid cap and voila signal generator tracked the dial across the BC band nicely from the antenna input.
It would seem that due to the above that the RF amp and first detector are working properly. Any ideas? Needing a short "antenna" on the grid of the 1st IF has me thrown for a loop.

http://www.nostalgiaair.org/PagesByModel...013125.pdf

Jerry

A friend in need is a pest!  Bill Slee ca 1970.


Messages In This Thread
118 Start Up Question - by jerryhawthorne - 05-03-2013, 05:44 PM
RE: 118 Start Up Question - by morzh - 05-03-2013, 06:46 PM
RE: 118 Start Up Question - by 7estatdef - 05-03-2013, 06:48 PM
RE: 118 Start Up Question - by BrendaAnnD - 05-03-2013, 08:09 PM
RE: 118 Start Up Question - by jerryhawthorne - 05-03-2013, 10:05 PM
RE: 118 Start Up Question - by jerryhawthorne - 05-09-2013, 07:40 PM
RE: 118 Start Up Question - by morzh - 05-09-2013, 07:58 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need Help to ID this radio 11 tube Philco
Yes the 16B as morzh pointed out. Specifically its the January 1935 model version of the 16B. There are a couple earli...klondike98 — 11:51 PM
48-482 rear panel help
Welcome to the Phorum, keithchip! How far you take a radio on cabinet restoration is a matter of personal preference. ...GarySP — 11:28 PM
48-482 rear panel help
I've recently finished the internal restoration of a locally purchased Philco 48-482. The cabinet is in ok shape except ...keithchip — 10:28 PM
Need Help to ID this radio 11 tube Philco
Welcome to the Phorum, Ken! Lots of help here for all of your restoration questions. Take care and BE HEALTHY! - Gar...GarySP — 07:59 PM
Need Help to ID this radio 11 tube Philco
Thank you. I went to your online library and found 2 schematics. I will download and compare to components!Ken D. — 06:31 PM
Need Help to ID this radio 11 tube Philco
It is a 16B tombstone.morzh — 06:13 PM
Zenith H725
David - sorry, I reread your post and finally saw THD - now the % figures make sense. Thanks for explaining. The PSU...EdHolland — 06:06 PM
Need Help to ID this radio 11 tube Philco
Hi Everyone, New member but have been reading this for awhile for tips! Vaccum tubes were before my time so bear with ...Ken D. — 06:03 PM
My Philco 37-116 Restore
Thank you MrFixR55, I appreciate your comments very much. I do not detect much hum if any so I will be staying with the ...dconant — 05:15 PM
My Philco 37-116 Restore
Hi DConant Yes, you can replace chokes with resistors.  You do stand the risk of increased hum.  the solution is to inc...MrFixr55 — 04:23 PM

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

>