AWA 46E
|
« Back ·
1 ·
Next »
|
|
|
Location: Kurri Kurri, NSW
Member since 4 March 2018
Member #: 2222
Postcount: 7
|
I've been pulling my hair out with this one. Does anyone have a schematic for an AWA 46E Chassis C93 ? Someone has been into it and I am not sure how close the resistor values are to those in a 55E as it is VERY similar, or what value some of the caps are.
Thanks,
Lindsey.
|
|
|
|
Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6761
|
|
|
|
|
Location: Kurri Kurri, NSW
Member since 4 March 2018
Member #: 2222
Postcount: 7
|
Unfortunately, that is not it. That is the Junior C87, having only one stage of RF before the detector stage. Mine has two stages before the detector stage. They ARE very similar. Mine is more like the Duoforte 55E (modified) using valves in this order, 58, 58, 75, 46, and 80. It's funny because the chassis is marked the same as the C87 where the valves are, but there is no sign that the sockets have been changed and the rivets look original with no sign of any tampering. I suspect it was a transitional chassis at the end of one design and the beginning of another.
I am no radio technician, and I know there are some in this forum who could look at it and read it like I read a newspaper without needing a schematic. I have to learn, though.
Some of the resistors and caps I know will be the same as the 55E, but things like bias resistors may be different. Since this radio has been worked on, some of the values in may have been changed as well since some resistors have been changed. I have traced parts of the circuits out and have noted some differences, modifying my 55E schematic with notes of what I find.
One of my big headaches on this set is the panel assembly holding the resistors and three capacitors. Often when I think I have it figured out, I see I have made an error. It sits in there like an octopus with tentacles going everywhere.
I'll see if I can upload my schematic notes.
Thanks,
Lindsey
AWA R46E Circuit Diagram
|
|
|
|
Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6761
|
Unfortunately, that is not it. That is the Junior C87
Hmmm, needs to be followed up by Stuart who made that entry on Radiomuseum.
|
|
|
|
Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7395
|
Document uploaded to Post 3.
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...
|
|
|
|
Location: Beechmont, QLD
Member since 10 April 2009
Member #: 465
Postcount: 109
|
Yeah, I did add that model to Radiomuseum.org but I didn't upload the circuit diagrams. I'll let the uploader know of the error. Thanks for letting me know.
Cheers, Stuart
|
|
|
|
Location: Kurri Kurri, NSW
Member since 4 March 2018
Member #: 2222
Postcount: 7
|
I hope that drawing jogs a memory for someone. That is my revision 1. I'll be replacing all but the mica caps as the rest are pretty much terrible looking. Of course, all electrolytic caps will be replaced.
Brad,
Thanks for doing that for me.. I guess it was too big, sorry. Would a drawing like that be better sent in PDF next time?
.
Lindsey
|
|
|
|
Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5389
|
Small trap for the unwary & I have seen a couple of examples. If it fails to run it may have a link pin that needs to be inserted, when its not using a turntable: Often these are missing.
|
|
|
|
Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7395
|
Circuit diagrams are usually converted to PDF just for convenience. When zoomed in, the format retains sharpness so that text is easier to read. I don't mind how they come to me.
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...
|
|
« Back ·
1 ·
Next »
|
You need to be a member to post comments on this forum.
|