[Buzz]

Hello:
I have a NEW series on YouTube.
A 1935 Philco 89..The radio from heck!
link below for anyone listed
 
https://www.youtube.com/watch?v=LoTXZuY5aTY

[sam]

wOOHOO
Friday night buzz flick 
Will be watching  thanks buzz




Sam

[NostalgiaRadioTime]

IMO, based on the cabinet, it appears this is a 1935 model, not a 1933. Thoughts?

[Radioroslyn]

When I first saw it I thought it was a 66. Guess I'm used to seeing the brass rectangular escutcheon rather than the bakelite one.

[Ron Ramirez]

Greg is right - it is a 1935 model, not 1933.

http://www.philcoradio.com/gallery/1935a.htm#af

Everything you would ever want to know about the 89 may be found here:

http://philcoradio.com/phorum/showthread.php?tid=15002

[Buzz]

Hi Ron...whats the easiest way you know of to exactly pinpoint which production run this is...( part numbers than can easily be seen)..thanks Buzz

[Ron Ramirez]

Make an educated guess based upon the facts available.

We know that this version of the 89B is a 1935 model, and it went into production between May and June of 1934. A radio's model year started in the very late spring of the previous calendar year when they were introduced first to the dealers, then to the general public.

We also know that since your 89 uses a 36 det-osc tube that it could not have been built after August 31, 1934 since the switch to type 77 was made on September 1, 1934 (run 14).

So...this means your 89 must be run 12 or 13. I would go by the run 13 schematic shown at this link. Even if your radio has a 15,000 ohm resistor at part (10), I would change it to 10,000 ohms or even 7.500 ohms for best possible performance from that finicky 36 tube.

Don't forget to bake that oscillator coil...and count on rewinding its tickler winding. Bake first, then rewind. Bake it at 200 degrees F for 30 minutes. Your coil will thank you for the opportunity to lose that residual moisture it has been collecting since 1934.

[Buzz]

Hi Ron, Mine still has the 10K resistor..but has the newer 30-1053 tuner cap....Whats the story on the police band?..The dial scale only goes to 1500...isn't the police band in the 1700 and above? .....Buzz

[Ron Ramirez]

If your radio has an original 10K resistor, part (10) but still uses a 36 tube, then it must be run 13.

Regarding the dial - There should be SW frequency numbers in the middle of the dial scale, numbering from 1.5 to 3.2 (mc).

See this repro dial on the Radio Daze site for an example.

http://www.radiodaze.com/philco-89-am-sw-w-lines/

If your scale does not have the numbers in the middle, that means someone swapped the original out for one from a Code 121 (AM-only) 89.

P.S. Please do not long-form quote everything in a previous post when replying. If you use the Reply button to reply to posts, please delete all of the text that shows up before typing your reply. This makes everything look neater and less cluttered. Thanks.

[Buzz]

OK Ron....Mine defiantly needs the shortwave dial... I generated a test signal at 2MC and the radio responds...My dial has wire wrapped around the top and bottom to secure it..What did the factory use? just curious.......thanks for your help.....Buzz

[Ron Ramirez]

Ah ha...someone did replace the dial scale. The factory used brass eyelets to secure the dial in place at top and bottom.

So...it sounds like you need a new Radio Daze dial (free plug)...

[Buzz]

Tell me Ron, what is a twin .09 ?.. I see only one .09 listed as #5 on schematic..............Buzz

[Ron Ramirez]

A twin .09 is a bakelite block with two .09 uF caps inside.

Go to this link:

http://philcoradio.com/phorum/showthread.php?tid=15002

and scroll down to post #4 - and then scroll down to the notes for December 1, 1933: Code 123, Run 9. The changes made in run #9 carried through to run #13.

[Buzz]

Ron..I already saw that...but if there are two .09's in that Bakelite block, and I can see 1 is paralleled to the 300 ohm resistor, where is the other one? Where is that listed in the schematic?...

[Ron Ramirez]

I don't own an 89-123 with a 36 tube, and I honestly don't remember...Terry?