1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

Linear Mode
Philco 66B restoration
klondike98
Phorum Moderator
******
Posts: 5,129
Threads: 271
Joined: Nov 2012
City: Wilsonville State, Province, Country: OR
#29

10-26-2018, 03:14 PM
My 6A7 and a few other tubes arrived today from Bob D's FindATube so I was all set to fire the 66B up and get it aligned...ho ho ho

Getting past the dim bulb test OK I powered it up at about 115v.  The 80 filament lit as did the dial lamp but the set was ominously quiet!  I flipped the tone switch and did hear a small click through the speaker and a screwdriver on the cap of 75 produced a buzzing through the speaker so at least the audio seems to work.  Voltages on the tubes were as follows:

[Image: https://www.dropbox.com/s/qeoad4s7k6uzv4....jpg?raw=1]

Voltages on the electrolytics were:
Electrolytic Cap#50 (red lug)= 293v
Electrolytic Cap#50 (plain lug)= 350v
Electrolytic Cap#49 = 0v

Gotta be the choke #48... and indeed when I checked it (I swear I checked it earlier  Icon_evil ) it is open.  Its a bit of a tight fit where its located so I'll have to see what I can find to replace it.  I don't have a spec on it but following Terry's previous advice on an open filter choke is go with the highest Henrys that fit the physical dimensions for the choke.  More later...
Cheers,
Bob
[Image: https://www.dropbox.com/s/5m63ib99yfx2eg....jpg?raw=1]
Bob's Restorations Web Page
Website Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Philco 66B restoration - by klondike98 - 09-24-2018, 07:08 PM
RE: Philco 66B restoration - by morzh - 09-24-2018, 07:15 PM
RE: Philco 66B restoration - by klondike98 - 09-24-2018, 07:24 PM
RE: Philco 66B restoration - by Arran - 09-25-2018, 04:18 AM
RE: Philco 66B restoration - by morzh - 09-25-2018, 07:51 AM
RE: Philco 66B restoration - by klondike98 - 09-25-2018, 05:49 PM
RE: Philco 66B restoration - by morzh - 09-25-2018, 07:15 PM
RE: Philco 66B restoration - by klondike98 - 09-26-2018, 09:17 AM
RE: Philco 66B restoration - by morzh - 09-26-2018, 11:47 AM
RE: Philco 66B restoration - by klondike98 - 09-27-2018, 12:21 PM
RE: Philco 66B restoration - by morzh - 09-27-2018, 03:22 PM
RE: Philco 66B restoration - by klondike98 - 09-27-2018, 07:46 PM
RE: Philco 66B restoration - by Ron Ramirez - 09-27-2018, 07:59 PM
RE: Philco 66B restoration - by klondike98 - 09-27-2018, 08:09 PM
RE: Philco 66B restoration - by morzh - 09-27-2018, 10:08 PM
RE: Philco 66B restoration - by klondike98 - 09-27-2018, 10:42 PM
RE: Philco 66B restoration - by klondike98 - 09-28-2018, 02:30 PM
RE: Philco 66B restoration - by morzh - 09-28-2018, 02:38 PM
RE: Philco 66B restoration - by Radioroslyn - 09-28-2018, 05:23 PM
RE: Philco 66B restoration - by klondike98 - 09-29-2018, 10:06 PM
RE: Philco 66B restoration - by OldRestorer - 10-02-2018, 08:59 AM
RE: Philco 66B restoration - by klondike98 - 10-06-2018, 04:30 PM
RE: Philco 66B restoration - by klondike98 - 10-10-2018, 09:06 PM
RE: Philco 66B restoration - by klondike98 - 10-14-2018, 07:08 PM
RE: Philco 66B restoration - by Steve Davis - 10-14-2018, 08:46 PM
RE: Philco 66B restoration - by klondike98 - 10-14-2018, 11:24 PM
RE: Philco 66B restoration - by klondike98 - 10-20-2018, 07:16 PM
RE: Philco 66B restoration - by klondike98 - 10-26-2018, 03:14 PM
RE: Philco 66B restoration - by Ron Ramirez - 10-26-2018, 03:26 PM
RE: Philco 66B restoration - by klondike98 - 10-26-2018, 04:07 PM
RE: Philco 66B restoration - by Radioroslyn - 10-26-2018, 04:51 PM
RE: Philco 66B restoration - by Ron Ramirez - 10-26-2018, 07:30 PM
RE: Philco 66B restoration - by klondike98 - 11-01-2018, 07:38 PM



Users browsing this thread: 11 Guest(s)
[-]
Recent Posts
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
An attempt to remove the Field Coil from a G speaker
Arran Yours probably then the H speaker, same as mine.morzh — 08:39 PM
An attempt to remove the Field Coil from a G speaker
Mike; I would like to have a look at the speaker in my model 96, but the set is packed into a corner in the basement. ...Arran — 08:04 PM
91H Code 126 Restore
Thanks Arran, I'm convinced the power cord is good but have a nice repro plug for it. Would it be prudent to add a fus...RealRider — 07:28 PM
91H Code 126 Restore
As I was studying this schematic I was wondering what does this dotted line means?  I haven't traced it out yet. An o...RealRider — 07:22 PM

[-]
Who's Online
There are currently 3390 online users. [Complete List]
» 1 Member(s) | 3389 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration