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 "Super 89" With 6A7 Tube
Steve Davis
Phorum Expert
*****
Posts: 1,409
Threads: 72
Joined: Oct 2007
City: Linn Creek, MO
#3

02-06-2017, 07:02 PM
About a year I had a Philco 19 on the bench. The oscillator would die out on the upper end of the band. I tried all the things we do in a case likes this. I tried different 36 tubes, baked the oscillator coil and lowered the value of the cathode resistor. This was the first time one of these things beat me. I'm really thinking about getting the chassis back down off the shelf and doing Ron's "super mod" on it.

Steve
M R Radios   C M Tubes
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Philco "Super 89" With 6A7 Tube - by markmokris - 02-06-2017, 05:24 PM
RE: Philco "Super 89" With 6A7 Tube - by Steve Davis - 02-06-2017, 07:02 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Zenith H725
I completed the insulation on the cabinet interior (Al foil and hi temp silicone rubber), and reglued the speaker gasket...EdHolland — 06:18 PM
HiFi (Chifi) tube amp build - but my own design.
Tim - Photos of 8 octal tube sockets. (Top and bottom) Send me a PM if you're interested.RodB — 04:11 PM
VTVM meter moves when my hand is next to it & not on
Haha! I hope so. It seemed rather lost and forgotten languishing in the frozen Northeast of England.EdHolland — 02:36 PM
VTVM meter moves when my hand is next to it & not on
Ed - it's in the Cayman's enjoying the good life.RodB — 02:14 PM
VTVM meter moves when my hand is next to it & not on
Static electricity - but the other chaps beat me to it again. I've seen this before with analogue meters. I've also ...EdHolland — 01:56 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM
Philco 610B oscillator wiring
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM
HiFi (Chifi) tube amp build - but my own design.
Tim; I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM

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

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