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

Thread Closed
Thread Rating:
  • 1 Vote(s) - 4 Average
  • 1
  • 2
  • 3
  • 4
  • 5

1933 Cathedral Model 89B
#3

I agree, it's a great little performer. Nice looking cabinet!

But it can be an absolute bear to get working, especially if you have a 36 tube based oscillator. A bit of advice, stick close to the schematic in that area except for he 36 cathode resistor, change it to 8k6 or so.
You will likely have to rewind at least part of the oscillator coil as well, be careful and precise. I had to do mine four times before it worked well.

Good luck!
Will


Messages In This Thread
1933 Cathedral Model 89B - by Warren - 03-31-2014, 11:48 PM
RE: 1933 Cathedral Model 89B - by Steve Davis - 03-31-2014, 11:56 PM
RE: 1933 Cathedral Model 89B - by skyscraper - 04-01-2014, 12:35 AM
RE: 1933 Cathedral Model 89B - by PAradiogeek - 04-01-2014, 07:23 AM
RE: 1933 Cathedral Model 89B - by gregb - 04-01-2014, 05:52 PM
RE: 1933 Cathedral Model 89B - by Warren - 04-01-2014, 06:55 PM
RE: 1933 Cathedral Model 89B - by skyscraper - 04-01-2014, 07:04 PM
RE: 1933 Cathedral Model 89B - by Warren - 04-07-2014, 02:28 PM
RE: 1933 Cathedral Model 89B - by skyscraper - 04-07-2014, 02:32 PM
RE: 1933 Cathedral Model 89B - by Warren - 04-07-2014, 07:46 PM
RE: 1933 Cathedral Model 89B - by Ron Ramirez - 04-08-2014, 05:24 AM
RE: 1933 Cathedral Model 89B - by Warren - 04-08-2014, 02:45 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1930s Stewart-Warner Tombstone Radio need help identifying model number
UPDATE: I was able to pick up a signal generator on the cheap (amazingly enough) on feebay and I did an IF alignment fol...captainclock1988 — 09:53 AM
Philco 91 Schematic
Hi Rod, The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of ...dconant — 09:34 AM
Just got a 49-1613 need to know...everything!
I just found your post. I have this exact same model, and have had it since 1985 when I was 15 years old! I performed a ...MuzzcoVW — 09:11 AM
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM

[-]
Who's Online
There are currently 9212 online users. [Complete List]
» 1 Member(s) | 9211 Guest(s)
Avatar

>