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Zenith AM FM radio info
9/4/2010 6:44:45 PMMitch
I am looking at purchasing a Zenith model X334 am fm radio to restore. Did not find any info at Resources on this site. The info on the back of the radio says model # X334.

Did i miss something in my search or will i have to go to SAMS?
Mitch

9/4/2010 9:18:51 PMBill B.
Hi Mitch,
I have looked for that also. This radio is of more recent vintage than most restorers are interested in.

It appears to be similar in design to H723. The size of the IF cans is smaller and the tubes are of more recent design, such as 12DT7 instead of 12AT7.

Best Regards,

Bill Grimm

9/5/2010 3:28:37 AMMitch
:Hi Mitch,
: I have looked for that also. This radio is of more recent vintage than most restorers are interested in.
:
: It appears to be similar in design to H723. The size of the IF cans is smaller and the tubes are of more recent design, such as 12DT7 instead of 12AT7.
:
:Best Regards,
:
:Bill Grimm
:
Seller said it was in working condition, plugged and turned switch, smoke and fire, looking at another one.
Mitch
9/5/2010 7:55:27 AMLewis L
::Hi Mitch,
:: I have looked for that also. This radio is of more recent vintage than most restorers are interested in.
::
:: It appears to be similar in design to H723. The size of the IF cans is smaller and the tubes are of more recent design, such as 12DT7 instead of 12AT7.
::
::Best Regards,
::
::Bill Grimm
::
:
:Bill,
:Seller said it was in working condition, plugged and turned switch, smoke and fire, looking at another one.
:Mitch
:
9/5/2010 7:55:53 AMLewis L
:::Hi Mitch,
::: I have looked for that also. This radio is of more recent vintage than most restorers are interested in.
:::
::: It appears to be similar in design to H723. The size of the IF cans is smaller and the tubes are of more recent design, such as 12DT7 instead of 12AT7.
:::
:::Best Regards,
:::
:::Bill Grimm
:::
::
::Bill,
::Seller said it was in working condition, plugged and turned switch, smoke and fire, looking at another one.
::Mitch
::
:
9/5/2010 7:59:46 AMLewis L
::::Hi Mitch,
:::: I have looked for that also. This radio is of more recent vintage than most restorers are
::::
:::: It appears to be similar in design to H723. The size of the IF cans is smaller and the tubes are of more recent design, such as 12DT7 instead of 12AT7.
::::
::::Best Regards,
:Bill Grimm


Memo to self:
Drink coffee before trying to use keyboard!

One that spits fire and smokes sounds like a lot of fun. This one will need a VARIAC or at least a light bulb current limiter. I would love to hlep fix this one.
Lewis
::::
:::
:::Bill,
:::Seller said it was in working condition, plugged and turned switch, smoke and fire, looking at another one.
:::Mitch
:::
::
:

9/7/2010 1:28:57 AMEdd








Sir Mitch . . . . . .

Any chance that Zenith power up went anything like this . . .?

Any one for a C18 input filter capacitor breakdown . . . . . . along with the, then, resultant high rise temperature onset of the central area of series R13 a 22ohm 1/2 w surge /curr lim resistor.


It then further, and immediately transitions, on into a charred ring around the center of said R13.


The ring fractures and leaves a gap for onset of an "arc lamp" action creating between the leaded carbon end caps.


A large , pyrotechnically impressive, progressively widening gap vaporizes away the impromptu electrodes.


Simultaneously, there is the accompanying and additional loud, 60 ~ throbbing, acoustical stacatto accompanying the open arc action.


The arc action continues, while rapidly eroding away at the electrode areas, until the critical state of the gap and the plasma no longer being able to sustain conduction at the voltage level present, an eerie silence then onsets, only delayed from being FULLY perceived, by the continued ringing within ones ears.


Just now, full visual acuity has just gradually started its reinstatement, after having experienced its retinal bombardment.


Time to now survey the mess and just see how much additional collateral damage was sustained, after just initially seeing the inches of black carbon deposition adjunct to the arc area, and different degrees of sizings of micro copper balls attached /fused into components in the very immediate area.

Fortunately, the nose was unaffected, but is just now fully responding to a strong phenol odor ( Remember . . . Lysol in the brown bottle ?) presence, along with the now acrid and stinging effects of a strong ozone presence.


Now, at no extra charge . . .there possibly would also be the presence of some airborne selenium oxide fumes, released from the pressure erupted blisters on the red/blue/green/silver ? conformal coating paint of the selenium rectifier.

And now, IF this was a Fibber Mc Gee and Molly episode, it would now be due time for next door, little neighbor, Teeny, to have heard the fracas and edged open the door and inquired . . . What'cha doin' Mister . . . Hmmmm . . What 'cha doin' . . .Hmmmmmmmmm ? . . . . . I betcha'.



73's de Edd








:::::Hi Mitch,
::::: I have looked for that also. This radio is of more recent vintage than most restorers are
:::::
::::: It appears to be similar in design to H723. The size of the IF cans is smaller and the tubes are of more recent design, such as 12DT7 instead of 12AT7.
:::::
:::::Best Regards,
::Bill Grimm
:

:
:
:Memo to self:
:Drink coffee before trying to use keyboard!
:
:One that spits fire and smokes sounds like a lot of fun. This one will need a VARIAC or at least a light bulb current limiter. I would love to hlep fix this one.
:Lewis
:::::


::::Bill,
::::Seller said it was in working condition, plugged and turned switch, smoke and fire, looking at another one.
::::Mitch


::::
:::
::
:



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