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Philco model 18 (code 121) - HELP!
#43

Pith, sounds like your moving along. Let's start at the back end of the radio. For your multimeter (I hope it is analog and not digital) I prefer to hook up the leads to the wires going to the voice coil due to low voltages and easy to get to. Sometimes. Set your meter for a very low range A/C, perhaps 3V. With your new generator and the proper frequency set on it your ready to rock! As indicated your gen to ground and the signal side to the top of the tube indicated with the cap off.
Radio volume at full blast and signal generator as low as possible to hear the modulated tone (make certain you turn that tone on). This is where it nice to watch a analog meter with the nice needle instead of a jumping digital. As you move along adjusting the IFs in the proper order you will notice hopefully that that tone is getting louder as indicated by ear and meter. After each peak, turn the output level on the signal generator down to just a comfy hum out of the speaker. Once you have those IF adjustments peaked, your ready for phase two!
Let us know how it goes.
Jerry

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


Messages In This Thread
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-07-2013, 09:22 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-08-2013, 09:32 PM
RE: Philco model 18 (code 121) - HELP! - by Arran - 02-08-2013, 09:49 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-09-2013, 01:21 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-09-2013, 04:57 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-09-2013, 05:12 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-13-2013, 07:40 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-21-2013, 04:25 PM
RE: Philco model 18 (code 121) - HELP! - by jerryhawthorne - 02-26-2013, 03:38 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 02-28-2013, 05:04 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 03-07-2013, 03:16 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 03-07-2013, 10:20 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 04-17-2013, 12:25 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 04-18-2013, 07:48 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 04-18-2013, 08:49 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 04-29-2013, 09:02 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 06-12-2013, 12:37 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 06-13-2013, 07:33 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 07-23-2013, 09:33 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 07-24-2013, 10:11 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 08-02-2013, 04:06 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 08-21-2013, 09:26 AM
RE: Philco model 18 (code 121) - HELP! - by morzh - 12-17-2013, 09:58 AM
RE: Philco model 18 (code 121) - HELP! - by morzh - 12-19-2013, 11:47 AM
RE: Philco model 18 (code 121) - HELP! - by morzh - 12-19-2013, 07:48 PM
RE: Philco model 18 (code 121) - HELP! - by morzh - 01-17-2014, 03:05 PM



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