Philco 70 Cathedral

Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Linear Mode

Philco 70 Cathedral

BrendaAnnD
Phorum Expert

Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma State, Province, Country: Washington

#21

05-26-2021, 02:19 AM

Ron Ramirez is right. You don't want that primary wound on top of the secondary. Reason is that the coil is designed for nominal coupling across the band. If you were to wind it on top, you may get better coupling in the lower part of the band, but you would lose total Q in the circuit and also change how it tracks across the band...

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Philco 70 Cathedral - by 462ron - 02-10-2021, 03:46 PM

RE: Philco 70 Cathedral - by Radioroslyn - 02-10-2021, 04:17 PM

RE: Philco 70 Cathedral - by 462ron - 02-11-2021, 12:12 AM

RE: Philco 70 Cathedral - by 462ron - 02-24-2021, 03:56 PM

RE: Philco 70 Cathedral - by patrician56 - 02-24-2021, 05:48 PM

RE: Philco 70 Cathedral - by patrician56 - 02-24-2021, 05:50 PM

RE: Philco 70 Cathedral - by Radioroslyn - 02-24-2021, 08:34 PM

RE: Philco 70 Cathedral - by 462ron - 02-25-2021, 08:16 AM

RE: Philco 70 Cathedral - by Radioroslyn - 02-25-2021, 09:56 AM

RE: Philco 70 Cathedral - by 462ron - 02-25-2021, 10:05 AM

RE: Philco 70 Cathedral - by Steve Davis - 02-25-2021, 10:22 AM

RE: Philco 70 Cathedral - by 462ron - 02-25-2021, 12:10 PM

RE: Philco 70 Cathedral - by 462ron - 04-12-2021, 02:49 PM

RE: Philco 70 Cathedral - by rfeenstra - 04-12-2021, 04:38 PM

RE: Philco 70 Cathedral - by 462ron - 04-12-2021, 06:15 PM

RE: Philco 70 Cathedral - by 462ron - 05-25-2021, 04:26 PM

RE: Philco 70 Cathedral - by Paul Philco322 - 05-25-2021, 05:03 PM

RE: Philco 70 Cathedral - by Ron Ramirez - 05-25-2021, 05:06 PM

RE: Philco 70 Cathedral - by 462ron - 05-25-2021, 06:11 PM

RE: Philco 70 Cathedral - by Ron Ramirez - 05-25-2021, 11:00 PM

RE: Philco 70 Cathedral - by BrendaAnnD - 05-26-2021, 02:19 AM

RE: Philco 70 Cathedral - by 462ron - 05-26-2021, 07:55 AM

RE: Philco 70 Cathedral - by Radioroslyn - 05-26-2021, 08:26 AM

RE: Philco 70 Cathedral - by Radioroslyn - 05-26-2021, 10:10 AM

RE: Philco 70 Cathedral - by 462ron - 05-26-2021, 12:31 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello, I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same. I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting. IF alignment went great, almost all was already spot-on. Adjusting on th...glyphmon — 11:35 PM

Who's Online
There are currently no members online.

Login
Username:
Password:	Lost Password?
	Remember me