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Radiola 526
11/20/2008 9:56:48 PMVinny
Greetings, I have a Radiola 526 (AM and SW), I just finished re-capping it and it plays well on AM. There is a un-canned device on the chassis marked on the schematic as Ant. Coil. Is this for the short wave part of the radio? or for the external antenna terminal? or both? Should this device be canned? The screw on top of the coil is turned all the way in one direction.. When I turn it the opposite way nothing happens to AM reception. I believe this radio was serviced many years ago as I have found the electrolytics inside the radio as incorrect vs the schematic. I do not have a long wire to test the SW as of yet? How should I approach the testing of this device? As you know from my previous postings, I am a beginner and do not have any alignment tools. The other transformers I would not touch as the radio play nicely on AM.
Thank you,
Vinny
11/20/2008 10:54:10 PMVnny
I believe this device may have been also replaced many years ago as there are wires under the chassis that have very old electricians tape on it.
Thank you,
Vinny

:Greetings, I have a Radiola 526 (AM and SW), I just finished re-capping it and it plays well on AM. There is a un-canned device on the chassis marked on the schematic as Ant. Coil. Is this for the short wave part of the radio? or for the external antenna terminal? or both? Should this device be canned? The screw on top of the coil is turned all the way in one direction.. When I turn it the opposite way nothing happens to AM reception. I believe this radio was serviced many years ago as I have found the electrolytics inside the radio as incorrect vs the schematic. I do not have a long wire to test the SW as of yet? How should I approach the testing of this device? As you know from my previous postings, I am a beginner and do not have any alignment tools. The other transformers I would not touch as the radio play nicely on AM.
:Thank you,
:Vinny

11/21/2008 4:21:00 AMVinny
there is a switch in the back of this radio for SW, when switched to SW I hear nothing, any suggestions?
Thank you,
Vinny


:Greetings, I have a Radiola 526 (AM and SW), I just finished re-capping it and it plays well on AM. There is a un-canned device on the chassis marked on the schematic as Ant. Coil. Is this for the short wave part of the radio? or for the external antenna terminal? or both? Should this device be canned? The screw on top of the coil is turned all the way in one direction.. When I turn it the opposite way nothing happens to AM reception. I believe this radio was serviced many years ago as I have found the electrolytics inside the radio as incorrect vs the schematic. I do not have a long wire to test the SW as of yet? How should I approach the testing of this device? As you know from my previous postings, I am a beginner and do not have any alignment tools. The other transformers I would not touch as the radio play nicely on AM.
:Thank you,
:Vinny

11/23/2008 11:30:52 PMVinny-Any suggestions
:there is a switch in the back of this radio for SW, when switched to SW I hear nothing, any suggestions?
:Thank you,
:Vinny
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::Greetings, I have a Radiola 526 (AM and SW), I just finished re-capping it and it plays well on AM. There is a un-canned device on the chassis marked on the schematic as Ant. Coil. Is this for the short wave part of the radio? or for the external antenna terminal? or both? Should this device be canned? The screw on top of the coil is turned all the way in one direction.. When I turn it the opposite way nothing happens to AM reception. I believe this radio was serviced many years ago as I have found the electrolytics inside the radio as incorrect vs the schematic. I do not have a long wire to test the SW as of yet? How should I approach the testing of this device? As you know from my previous postings, I am a beginner and do not have any alignment tools. The other transformers I would not touch as the radio play nicely on AM.
::Thank you,
::Vinny
11/24/2008 4:56:58 PMEdd









ASPECT 1:

Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


ASPECT 2:

Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.


ASPECT 3:

Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.


ASPECT 4:

If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.


Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.



73's de Edd





11/24/2008 5:57:32 PMBob E.
EDD,
“ one hunna lebenteen years”,
How many iszat in "dog years"?
jus wunderin,
bob
11/25/2008 12:52:15 AMMarv Nuce
EDD,
You're a gas, an unlimited library of info and one hunna and lebenteen percent correct on that last call.

marv

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:ASPECT 1:
:
:Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
:convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
:that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


:ASPECT 2:
:
:Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.
:
:
:ASPECT 3:
:
:Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.
:
:
:ASPECT 4:
:
:If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.
:
:
:Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.
:
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:73's de Edd

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11/25/2008 4:32:48 PMVinny
Edd, thank you very much for responding. I tried spraying those contacts a couple of times, even with the volume turned all the way up on another wise loud radio I could barely hear anything. Could it be that it needs to be aligned from that device that is described earlier. I will try and get a cord or wire and try anything, is it a single strand of wire that is needed? And I assume it would be connected to the antenna terminal in the back of the radio.
Edd, as usual your explanations are entertaining but very concise and to the point as you had helped me out before, in fact all of you guys have been great, more helpful to me then anyone. Gee, has it been “ one hunna lebenteen years”, that is a very long time in even dog years.......
Thank you,
Vinny


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:ASPECT 1:
:
:Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
:convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
:that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


:ASPECT 2:
:
:Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.
:
:
:ASPECT 3:
:
:Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.
:
:
:ASPECT 4:
:
:If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.
:
:
:Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.
:
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:73's de Edd

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11/25/2008 5:05:56 PMVinny
Edd, should I at least get loud static or any loud noise when the volume is turned all the way up? It is just very very faint.
Vinny

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:ASPECT 1:
:
:Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
:convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
:that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


:ASPECT 2:
:
:Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.
:
:
:ASPECT 3:
:
:Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.
:
:
:ASPECT 4:
:
:If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.
:
:
:Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.
:
:
:
:73's de Edd

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11/25/2008 7:38:45 PMVinny

Edd, the wife got the dog house, the clothesline, the lower branch of the old elm tree and the chimney stack that is attached to the house, the dog, the cat, my lovely daughters, the car. I did receive however, the job(s), three of them, and the bills. I hope Could get this SW working.
Thank you,
Vinny

:Edd, should I at least get loud static or any loud noise when the volume is turned all the way up? It is just very very faint.
:Vinny
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::ASPECT 1:
::
::Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
::convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
::that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


::ASPECT 2:
::
::Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.
::
::
::ASPECT 3:
::
::Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.
::
::
::ASPECT 4:
::
::If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.
::
::
::Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.
::
::
::
::73's de Edd

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11/26/2008 2:42:21 AMVinny
Edd, the ANT coil has no can/covering over it, it looks like it was replaced many years ago as wires were spliced under the chassis. The screw is also turned all the way in one direction. Is this the alignment for the SW? Should the antenna coil have a covering over it?
Thank you,
Vinny


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:
:
:
:
:
:
:ASPECT 1:
:
:Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
:convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
:that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


:ASPECT 2:
:
:Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.
:
:
:ASPECT 3:
:
:Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.
:
:
:ASPECT 4:
:
:If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.
:
:
:Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.
:
:
:
:73's de Edd

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12/4/2008 3:13:01 PMVinny
Edd, sorry to be a nuge, should the Ant. coil have some kind of can or protective device over it? does not having one minimize reception for the SW and create any distortion or abnormalities to the receptive quality? I have since followed your advice and received some results, even stayed up overnight to try and tune in stations using a short 8' wire by the windows. I have received some stations in different parts of the apartment, but nothing clear sounding.
thank you,
Vinny

:
:
:
:
:
:
:
:
:
:
:
:ASPECT 1:
:
:Looking at that schema we see that the BC-SW on the rear is shunt switching the BCB and SW osc and ANT coils in order to
:convert between the two bands. Concentrate on a vewy close examination of that switches contacts and see if there is a possibility
:that with the unit being left in the BCB position for the last “ one hunna lebenteen years”, it has not left its SW contacts so badly oxidized that one set is not actually switching to make good contact.(Ohm it out for confirmation).


:ASPECT 2:
:
:Not having a dedicated SW antenna would not be indicative of your being able to do some improvising, with the commandeering of the family’s 25-50-100 ft electrical extension cord and end up clip lead connecting its pronged end to the ANT connection and then route the free length over the dog house, over the clothesline, thru the lower branch of the old elm tree and finally coil up the residual and give it a mighty heave upwards to fly up and come precisely to rest atop the chimney stack of Granny Goodknockers, next doors.
:
:
:ASPECT 3:
:
:Thennnnnn. . . .Make another listen for any activity on your 9-12 Mhz Sw band that it covers, the only lead pipe cinch that I can recommend, if within reception range is our WWV station at Boulder Colorado, you can seek out 10.000.000 Mhz and listen for that time frequency standard , Ticking like a clock with its tone bursts or else waiting for its verbal announcements every 5 minutes.
:
:
:ASPECT 4:
:
:If you’re expecting overseas shortwave broadcasts then, expect that to be time specific , in my locale its almost always after dark or in the wee hours. Some religious oriented programming is sent out from the USA and those few stations might be easier to locate.
:
:
:Hmmmmmm. . . . . I just now checked and found that my aspect bag is empty…gotta go.
:
:
:
:73's de Edd

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12/4/2008 6:32:37 PMEdd




Edd, sorry to be a nuge, should the Ant. coil have some kind of can or protective device over it?

NO problem with the set design not having a cover / shielding over it, as this is a set without a extra RF ampstage in the front end design,
where that just might present a feed back problem in that situation.

Does not having one minimize reception for the SW and create any distortion or abnormalities to the receptive quality?

Nope, might even enhance reception on stronger ones that could be picked up via the coil proper, whereas if it was shielded,

it would be dependent upon piped in RF thru the ext antenna connection.

[I have since followed your advice and received some results, even stayed up overnight to try and tune in stations]
using a short 8'
wire
by the windows.

I have received some stations in different parts of the apartment, but nothing clear sounding.

That last portion, with some of its words, keyed in a couple of truisms:

8 feet

is a veeeeery short "aerial" wire length.

My first SWL antenna, as a pre teenager, was the fine wire unrolled from an old dynamic speakers field coil , using about
50 ft of it. I was using glass insulators on the ends made by taking two coke bottles and circling their open ends around
themselves and then rapidly pulling the bottles apart, such that one of the lip ends would fracture off the outer portion
and leave you with a glass ring, you could either wear it on your finger or use it as an antenna insulator. . . . as I did.

A spark plug with its side connector tapped ever closer into the center electrode, with a sheet of paper acting as a spacer,
then being pulled out,
let me fabricate a lightning arrestor.

That was then connected to a close good earth ground. When normally not in use, a knife switch inline after the arrestor
opened the aerial circuit completely for furthering protection and isolation.

apartment. . . .(or houses)


There was a certain transitional point where there was phased in use of alumi-ninni-yum- yum faced insulation both inside on fiberglass batting and also on the outside of residences, where one had a quite dead RF reception inside those domiciles.


As for the window screens there was still the attenuaton from metal grid wire mesh, unless it was fabric instead. Additionally there also might be the use of E-efficient glass where there are microns thicknesses of metal placed on via electrostatic vacuum deposition, where that also would be a source of RF shielding.

Try a decent length of outside antenna , put up temporary, for its typical use in the eve or wee hours THEN, according to results,

you can see how much of a scaling back is then permissible.


73's de Edd





12/6/2008 5:41:56 AMVinny
Edd, your explanations are nothing less than super, in fact even a bit poetic if you don't mind me saying that. I enjoy nostalgia, personal stories in relation to a pertinent subject, history, and certainly listening to a guru in a particular field. I will try all your advice with the SW. My apartment building was built in the 1800's so I do not think the metal in the outside walls is a factor. However, the walls are as thick as a castle, made of stone and brick and who knows what else. I will try the outside antenna when I could get some wire and write back with results. I am eased to know about the protective shield over the antenna coil. As for the coke bottles maybe I will give it a try as they sell old glass coke bottled soda around the holidays. Lastly, the last "glass ring" I gave was why I live in this one room apartment.
Thank you for all of your help.
Vinny

:
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:
:
:
:
:Edd, sorry to be a nuge, should the Ant. coil have some kind of can or protective device over it?
:

:
:
:NO problem with the set design not having a cover / shielding over it, as this is a set without a extra RF ampstage in the front end design,
:where that just might present a feed back problem in that situation.
:
:
:
:Does not having one minimize reception for the SW and create any distortion or abnormalities to the receptive quality?
:
:
:
:Nope, might even enhance reception on stronger ones that could be picked up via the coil proper, whereas if it was shielded,
:
:it would be dependent upon piped in RF thru the ext antenna connection.
:
:
:[I have since followed your advice and received some results, even stayed up overnight to try and tune in stations]
:using a short 8'
:wire
by the windows.
:
:I have received some stations in different parts of the apartment, but nothing clear sounding.
:
:
:
:That last portion, with some of its words, keyed in a couple of truisms:
:
:
:8 feet
:
: is a veeeeery short "aerial" wire length.
:
:
:My first SWL antenna, as a pre teenager, was the fine wire unrolled from an old dynamic speakers field coil , using about
: 50 ft of it. I was using glass insulators on the ends made by taking two coke bottles and circling their open ends around
: themselves and then rapidly pulling the bottles apart, such that one of the lip ends would fracture off the outer portion
: and leave you with a glass ring, you could either wear it on your finger or use it as an antenna insulator. . . . as I did.
:
:A spark plug with its side connector tapped ever closer into the center electrode, with a sheet of paper acting as a spacer,
: then being pulled out,
: let me fabricate a lightning arrestor.
:
:That was then connected to a close good earth ground. When normally not in use, a knife switch inline after the arrestor
: opened the aerial circuit completely for furthering protection and isolation.
:
:
:
:apartment. . . .(or houses)
:
:
:There was a certain transitional point where there was phased in use of alumi-ninni-yum- yum faced insulation both inside on fiberglass batting and also on the outside of residences, where one had a quite dead RF reception inside those domiciles.
:
:
:As for the window screens there was still the attenuaton from metal grid wire mesh, unless it was fabric instead. Additionally there also might be the use of E-efficient glass where there are microns thicknesses of metal placed on via electrostatic vacuum deposition, where that also would be a source of RF shielding.
:
:
:Try a decent length of outside antenna , put up temporary, for its typical use in the eve or wee hours THEN, according to results,
:
:you can see how much of a scaling back is then permissible.
:
:
:
:73's de Edd

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:
:
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