Funfunebayedagain

Thu Aug 9, 2018, 09:55 PM

!@$*##!!!##!!!


Just got this beautiful classic 1962 Stereo Zenith with extra speaker. Tried a.m., worked beautifully.

Switched to f.m. and nothing at first. No yellow f.m. tuning indicator light. Cleaned switch, now have a couple f.m. stations, no tuning indicator light. An external f.m. antenna would probably help, these sets are supposed to have spectactular performance, but weak front ends.

Much happier with my 1969 Zenith X337, which arrived in showroom condition.






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Reply !@$*##!!!##!!! (Original post)
wonderwarthog Thursday OP
Butchie_T Thursday #1
wonderwarthog Thursday #3
Spitfire Thursday #2
wonderwarthog Thursday #4
wonderwarthog Thursday #5

Response to wonderwarthog (Original post)

Thu Aug 9, 2018, 10:02 PM

1. Look upon it as a challenge to fix

And you will enjoy it that much more once it works.

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Response to Butchie_T (Reply #1)

Thu Aug 9, 2018, 11:17 PM

3. Nothing to lose


People rave about these sets on antiqueradioforums.

I paid $100 including shipping. (40 lbs the whole set!)

The lady actually called me on the phone, she is moving overseas.
Beautiful Spanish accent.

I told her not to worry about it, she has enough on her mind, and I will fix it.

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Response to wonderwarthog (Original post)

Thu Aug 9, 2018, 10:06 PM

2. Do you think it's the front end?

But if the unit is known for a weak front end then an antenna is an absolute must!
Or maybe it's the limiter/discriminator?
I would think if the AM band is sensitive then the FM band should be also.
Of course, I suppose the local oscillator for the FM band could be weak.
Hell - I guess it could be anything.
But these things are what makes tracing down old school tube problems fun!!!
Good luck!

It has been a long time since I tinkered with the old stuff as my career progressed into the modern era - now that I'm retired I'm thinking about getting back into old school (and HAM).

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Response to Spitfire (Reply #2)

Thu Aug 9, 2018, 11:28 PM

4. It has a wavemagnet am antenna

on the back of the set, with a bracket attached to a screw to use the line cord as fm antenna.

The bracket is detached from the screw. Reattaching may help.

Or remove and attach some rabbit ears.

The "balance" control and volume control are on the same pull for on shaft, and are gummed up.

Deoxit is my friend.

From "Radiomuseum" -

"This receiver has stereo capability. With stereo indicator and AFC on FM. Output jack for left channel speaker. Total of two 7.5" and 3.5" speakers in each channel, two in cabinet and two in remote cabinet. Heater power provided by transformer. B+ voltage from AC line and selenium rectifier. CAUTION! THIS IS A "HOT CHASSIS" RECEIVER! USE ISOLATION TRANSFORMER WHEN WORKING ON THIS RADIO! Has input for stereo phonograph. This radio is capable of excellent performance and can rival many of the European sets."


https://www.radiomuseum.org/r/zenith_mj1035_12j01z.html





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Response to Spitfire (Reply #2)

Thu Aug 9, 2018, 11:30 PM

5. Hope you get back into it



I can't describe how much fun it it when you get a piece of living history that performs better than modern gear!

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Funfunebayedagain