Philco 90 - Tuning Gang?

Register

Guest Join Us

Hello Guest,

Please feel free to join us!
There are many more parts of the Phorum that only members can see.

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

Thread Rating:

0 Vote(s) - 0 Average
1
2
3
4
5

Linear Mode

Philco 90 - Tuning Gang?

etech
Member

Posts: 237
Threads: 24
Joined: Dec 2007
City: Gladwin, MI

#5

10-01-2008, 03:13 PM

Quote:A short braided bond to a tuning gang frame insures a low impedance RF ground.

In general, I am aware of this reason to use a braid type of grounding strap. I have used them many times on homebrew transmitter and/or antenna projects. I have just not seen this used on these Philco radios before.

I took another look at both of my model 90 chassis'. The one that had the ground braid was serial #709734 and the braid was soldered directly to the heads of the tuning gang mounting bolts. The other chassis is serial #535341 and there is no evidence that the ground braid was ever there. That is to say that I see no remaining solder on the heads of the mounting bolts and there is no evidence that there was ever a braid soldered to the top of the bypass condenser can as there is on the other chassis. Now I suppose that it is possible that they soldered the braid to lugs that were attached to mounting bolts and a ground point on the chassis. Or it is possible that some chassis were built with the grounding braid and some were not?

Can anyone else offer an information?

Ed

Find

« Next Oldest | Next Newest »

Messages In This Thread

Philco 90 - Tuning Gang? - by etech - 10-01-2008, 07:59 AM

Re: Philco 90 - Tuning Gang? - by Terry Burns - 10-01-2008, 09:45 AM

Re: Philco 90 - Tuning Gang? - by etech - 10-01-2008, 12:14 PM

Re: Philco 90 - Tuning Gang? - by Chuck Schwark - 10-01-2008, 01:35 PM

Re: Philco 90 - Tuning Gang? - by etech - 10-01-2008, 03:13 PM

Re: Philco 90 - Tuning Gang? - by etech - 10-01-2008, 03:43 PM

Re: Philco 90 - Tuning Gang? - by BDM - 10-01-2008, 06:52 PM

Re: Philco 90 - Tuning Gang? - by BDM - 10-04-2008, 10:33 PM

View a Printable Version

Users browsing this thread: 3 Guest(s)

Recent Posts
Atwater-Kent 84, restoration.
Hello Mike, I have not checked to see if my console has a fuse or not and far as sets go I have early 30s General Motor...radiorich — 11:25 AM
Atwater-Kent 84, restoration.
Ron I forgot, but when you said "phone number", I remembered, caus I usually remember how I act when I need...morzh — 11:12 AM
Atwater-Kent 84, restoration.
You have an extensive collection of Philcos, Mike! I’m always excited to see each new one. Agreed on the power supply fu...jrblasde — 10:50 AM
462ron
Hi Mike, that 84 sure looks great. You don’t often see these antique radios with a fuse like yours has. I usually instal...462ron — 10:22 AM
Atwater-Kent 84, restoration.
Hello Mike, Wow ! far as my AK it does work and the cabinet is in nice shape so is my chassis anyway here is a photo of...radiorich — 02:59 AM
Atwater-Kent 84, restoration.
Nice radio, Mike! Here's hoping it was well rebuilt. Take care and BE HEALTHY! GaryGarySP — 12:12 AM
Atwater-Kent 84, restoration.
Rich yes, this is the way I got it. I have just put it on the table and took it apart. I suspect it even might work,...morzh — 11:31 PM
Atwater-Kent 84, restoration.
Hello mike, What nice looking radio I have one AK in my collection it's a console I have not started restoring it yet ....radiorich — 11:21 PM
91H Code 126 Restore
Just to make it more confusing here is another model 91 schematic that doesn't show parts with dotted lines in that spot...Arran — 10:37 PM
Atwater-Kent 84, restoration.
The wires were desoldered from the can, and the capacitors checked. All checked at 0.102 uF, which is correct. So the c...morzh — 09:41 PM

Who's Online

There are currently 2836 online users. [Complete List]
» 3 Member(s) | 2833 Guest(s)