And would ye be liking that resplendently complete with hot and cold streaming electrons ?
'Tis professed that on a very good day... it can be found.........
(Mag it on up.... as its large J-peg formatted for giving good definition of components / parts value referencing.)
ZUJ'ing..... if any further info is needed....
73's de Edd
:Anyone have a schematic for an Emud Rekord Junior 196. All I'm getting now is a low-level hum and need suggestions where to look first..
Thanks Edd, you've come through again... I was beginning to lose all hope. Even without the "cheat sheet" I've been checking components - all I have so far is a dead pentode section in the EBF 89 - which I will order post haste. I did note an empty socket on the chassis - which I had deemed a terminal tie point rather than a functional socket. I now see this labelled as a "test socket" on the schematic. What was it's purpose and what did it test??? Thanks...
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:And would ye be liking that resplendently complete with hot and cold streaming electrons ?
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:'Tis professed that on a very good day... it can be found.........
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:(Mag it on up.... as its large J-peg formatted for giving good definition of components / parts value referencing.)
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:ZUJ'ing..... if any further info is needed....
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:73's de Edd
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::Anyone have a schematic for an Emud Rekord Junior 196. All I'm getting now is a low-level hum and need suggestions where to look first..
Firstly, that test socket would be for making easy access to the test points neded for FM ratio detector alignment so that one does not have to pull out the chassis and go burrowing inside to locate those points.
One is providing an FM detected audio output while the other two are providing metering / scope referencing for peak tuning and 0-center crossing of the ratio detector.
That inoperative tube that you mentioned should kill both your AM and FM with nothing but the phono input working.
In the interim, you might go to that Euro phono connector and physically hold an RCA phono plug to bridge across the span to
get an input to the system from a test CD or DVD's audio section and see if the audio sounds dreamy. Then that would only need the one mentioned tube , hopefully, to get the I.F. aspect wukkin' again.
That unit also uses a ton of hard to access switching , so even a good workout of alternate multi -i i i i i i i i i punching of their mechanics might shine up their contact surface areas.
73's de Edd
:
:Thanks Edd, you've come through again... I was beginning to lose all hope. Even without the "cheat sheet" I've been checking components - all I have so far is a dead pentode section in the EBF 89 - which I will order post haste. I did note an empty socket on the chassis - which I had deemed a terminal tie point rather than a functional socket. I now see this labelled as a "test socket" on the schematic. What was it's purpose and what did it test??? Thanks...
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::And would ye be liking that resplendently complete with hot and cold streaming electrons ?
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::'Tis professed that on a very good day... it can be found.........
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::(Mag it on up.... as its large J-peg formatted for giving good definition of components / parts value referencing.)
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::ZUJ'ing..... if any further info is needed....
::
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::73's de Edd
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:::Anyone have a schematic for an Emud Rekord Junior 196. All I'm getting now is a low-level hum and need suggestions where to look first..
:
:Firstly, that test socket would be for making easy access to the test points neded for FM ratio detector alignment so that one does not have to pull out the chassis and go burrowing inside to locate those points.
:
:
:One is providing an FM detected audio output while the other two are providing metering / scope referencing for peak tuning and 0-center crossing of the ratio detector.
:
:That inoperative tube that you mentioned should kill both your AM and FM with nothing but the phono input working.
: In the interim, you might go to that Euro phono connector and physically hold an RCA phono plug to bridge across the span to
:get an input to the system from a test CD or DVD's audio section and see if the audio sounds dreamy. Then that would only need the one mentioned tube , hopefully, to get the I.F. aspect wukkin' again.
:
:That unit also uses a ton of hard to access switching , so even a good workout of alternate multi -i i i i i i i i i punching of their mechanics might shine up their contact surface areas.
:
:
:73's de Edd
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::Thanks Edd, you've come through again... I was beginning to lose all hope. Even without the "cheat sheet" I've been checking components - all I have so far is a dead pentode section in the EBF 89 - which I will order post haste. I did note an empty socket on the chassis - which I had deemed a terminal tie point rather than a functional socket. I now see this labelled as a "test socket" on the schematic. What was it's purpose and what did it test??? Thanks...
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:::And would ye be liking that resplendently complete with hot and cold streaming electrons ?
:::
:::
:::
:::'Tis professed that on a very good day... it can be found.........
:::
:::
:::(Mag it on up.... as its large J-peg formatted for giving good definition of components / parts value referencing.)
:::
:::
:::
:::ZUJ'ing..... if any further info is needed....
:::
:::
:::
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:::73's de Edd
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::::Anyone have a schematic for an Emud Rekord Junior 196. All I'm getting now is a low-level hum and need suggestions where to look first..
PS - After checking voltage for a few minutes, I noticed the output transformer became quite warm - some might even call it hot - so I backed off for now...
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::Firstly, that test socket would be for making easy access to the test points neded for FM ratio detector alignment so that one does not have to pull out the chassis and go burrowing inside to locate those points.
::
::
::One is providing an FM detected audio output while the other two are providing metering / scope referencing for peak tuning and 0-center crossing of the ratio detector.
::
::That inoperative tube that you mentioned should kill both your AM and FM with nothing but the phono input working.
:: In the interim, you might go to that Euro phono connector and physically hold an RCA phono plug to bridge across the span to
::get an input to the system from a test CD or DVD's audio section and see if the audio sounds dreamy. Then that would only need the one mentioned tube , hopefully, to get the I.F. aspect wukkin' again.
::
::That unit also uses a ton of hard to access switching , so even a good workout of alternate multi -i i i i i i i i i punching of their mechanics might shine up their contact surface areas.
::
::
::73's de Edd
::
::
::
::
:::
:::Thanks Edd, you've come through again... I was beginning to lose all hope. Even without the "cheat sheet" I've been checking components - all I have so far is a dead pentode section in the EBF 89 - which I will order post haste. I did note an empty socket on the chassis - which I had deemed a terminal tie point rather than a functional socket. I now see this labelled as a "test socket" on the schematic. What was it's purpose and what did it test??? Thanks...
:::
:::
:::
::::
::::
::::And would ye be liking that resplendently complete with hot and cold streaming electrons ?
::::
::::
::::
::::'Tis professed that on a very good day... it can be found.........
::::
::::
::::(Mag it on up.... as its large J-peg formatted for giving good definition of components / parts value referencing.)
::::
::::
::::
::::ZUJ'ing..... if any further info is needed....
::::
::::
::::
::::
::::73's de Edd
::::
::::
::::
::::
::::
::::
:::::Anyone have a schematic for an Emud Rekord Junior 196. All I'm getting now is a low-level hum and need suggestions where to look first..
Soooo..in reality, you had a working receiver, with that RF front end and the units IF section being fully operative ALL
of the time before, with the exception of being B+ supply voltage starved a bit by the draining down a skosh of the B+ by that
shorted capacitor creating a 750 ohm bleed off to ground thru your output transformers primary "heater" winding.
That would only leave you with only the weak AC ripple content of the power supply being transferred thru to the speakers.
Thus, that perceived weak audio presence. The plate circuit of the output tube being void of its B+ and the otherwise adjunct
capability to create an audio AC voltage swing across the output transformer primary.
Moving on to your second problem, of the replication of the FM band….with a degree of normalcy being present from the
lower 88-96 Mhz spectrum. Will you confirm if the sets audio quality seems normal on received stations, as well as exhibiting
a normal tuning action, in the respect of tuning smoothly into a station and then a peaking with good quality audio and then a like
decline of reception as you tune on past the peak and off to the other sideband and then eventually the drop off and presence
of white noise ?
E.G., does the tuning response seem to have a symmetrical action going either side away from from peak / center tuning ?
Also will you check on the accuracy of the dial scale numerical logging to the received stations frequencies all across that
lower 88-96 spectrum. Then go to the "new spectrum" above that and start tuning in those stations in sequence ......while
making comparison to another receiver...(hopefully with a digital read out). To confirm if the band really is being replicated in
sequential order….. that reeks of a fault in the local oscillator with its produced low to high frequency coverage being compressed
up much more than it is normally spread across.
The other thought would be for the 10.7 IF alignment to be off . But that should
show up with the aforementioned tuning in action to a station not being as defined as is the norm, along with good quality audio.
Can you now confirm the quality of reception of the initial "low band stations" a compared to the up band "phantom" stations ?
Your replication of stations on the "high band" does seem as if they are being replicted ~ 10.7 Mhz up frequency from their
actual operating frequency.
Also be my eyes on your viewing and giving back some info on .....the FM IF cans L11-12A-13A with their internal
A13-12, A10-11 and A9-14 coils slugs and confirm if they are using ferrite slugs having a molded rectangular detent within the
slug ends for the insertion of a plastic insulative alignment tool, as well as the presence of excess wax upon them for sealing
.....whereupon you would notice if anyone had turned them since their factory alignment or possibly.. they might have had an
alternate white glyptal sealant being used for sealing.
Standing by for feedback:
73's de Edd
:Okay Edd - I have some good news and some bad news. Since the output transformer was getting hot after only a few minutes of operation - I did a little investigating around the ECL 82 ouput tube and - sure enough, C50 (a cap I initially missed checking) was a dead short. I replaced it and the radio plays (guess I'll have to tell my friend his tube tester was wrong!). That's the good news. Now for the bad - although the AM band functions well, the FM band seems fine from 88 up to about 96 MHZ - then there is a brief overlap of two stations and the band begins again! In other words, I can get no accurate tracking above that point - so I will get station "B96" at 96 on the dial and then again at 100 MHZ! What's going on here? Please drop some crumbs of knowledge for this radio pauper.....
Many thanks for the reply... Now on to the questions you pose - the tuning seems quite normal - with a clear peak that trails off on either end. The audio quality seems fine - although the electrostatic tweeter is dead - a common problem I am told (I have seen on another site how to possibly restore it). Comparing actual scale on the dial to digital is rather subjective but it's just a bit off (ie. 93 analog correlates with 92.3 digital)but likely in the norm for analog. Stations progress in correct sequence up to 97.9 - then the next station I receive is 92.3 at 99 on the dial and the sequence begins again, topping out at station 100.8 at about 108 on the dial. That last station doesn't tune in very well but the other replicated stations sound equivalent to their "lower scale" counterparts. I had done this earlier just to see if the sequence was correct - and it seems to be about 7Mhz off. I did inspect those cans too - they are packed with dust and a white sealer - no signs of tampering - in fact, other than a prior tube change, the chassis looks virgin. So there you have it... I look forward to your thoughts..
:
:Many thanks for the reply... Now on to the questions you pose - the tuning seems quite normal - with a clear peak that trails off on either end. The audio quality seems fine - although the electrostatic tweeter is dead - a common problem I am told (I have seen on another site how to possibly restore it). Comparing actual scale on the dial to digital is rather subjective but it's just a bit off (ie. 93 analog correlates with 92.3 digital)but likely in the norm for analog. Stations progress in correct sequence up to 97.9 - then the next station I receive is 92.3 at 99 on the dial and the sequence begins again, topping out at station 100.8 at about 108 on the dial. That last station doesn't tune in very well but the other replicated stations sound equivalent to their "lower scale" counterparts. I had done this earlier just to see if the sequence was correct - and it seems to be about 7Mhz off. I did inspect those cans too - they are packed with dust and a white sealer - no signs of tampering - in fact, other than a prior tube change, the chassis looks virgin. So there you have it... I look forward to your thoughts..
PS - today's update.... I tried an external ant to improve the AM reception and - surprise - it did. So, I tried disconnecting the internal FM dipole and hooking up to an ext long wire dipole. Guess what? The lower end gets some overlap of strong stations but the upper end now gets stations above 97.9 where they should be. The int dipole is folded within the cabinet and looks intact. ?????
::
::Many thanks for the reply... Now on to the questions you pose - the tuning seems quite normal - with a clear peak that trails off on either end. The audio quality seems fine - although the electrostatic tweeter is dead - a common problem I am told (I have seen on another site how to possibly restore it). Comparing actual scale on the dial to digital is rather subjective but it's just a bit off (ie. 93 analog correlates with 92.3 digital)but likely in the norm for analog. Stations progress in correct sequence up to 97.9 - then the next station I receive is 92.3 at 99 on the dial and the sequence begins again, topping out at station 100.8 at about 108 on the dial. That last station doesn't tune in very well but the other replicated stations sound equivalent to their "lower scale" counterparts. I had done this earlier just to see if the sequence was correct - and it seems to be about 7Mhz off. I did inspect those cans too - they are packed with dust and a white sealer - no signs of tampering - in fact, other than a prior tube change, the chassis looks virgin. So there you have it... I look forward to your thoughts..
:
:PS - today's update.... I tried an external ant to improve the AM reception and - surprise - it did. So, I tried disconnecting the internal FM dipole and hooking up to an ext long wire dipole. Guess what? The lower end gets some overlap of strong stations but the upper end now gets stations above 97.9 where they should be. The int dipole is folded within the cabinet and looks intact. ?????
PPS = Edd, where are you??