Help! What is this? Montgomery Ward Radio Info Needed

[earlyfilm]

Lightfoot,

To see what the UV199 is, go to:

https://frank.pocnet.net/sheetsU.html

and down load the PDF for the tube.

It also shows a typical circuit.

James.

[jr_tech]

Originally Posted by earlyfilm

Lightfoot,

To see what the UV199 is, go to:

https://frank.pocnet.net/sheetsU.html

and down load the PDF for the tube.

It also shows a typical circuit.

James.

The circuits shown are only detector or amplifier circuits... the complete radio circuit is probably similar to this one tube Crosley 50.



jr

[init4fun]

Originally Posted by jr_tech

The circuits shown are only detector or amplifier circuits... the complete radio circuit is probably similar to this one tube Crosley 50.



jr

Hi jr , Something very weird , when I look at your post I can't see the link to the crosley , but when I quote your post to reply to you the link appears ? I wonder of this is a setting on my end or something with VK , like the way I get the weird "Align OrderedUnorderedDecreaseIncreaseInsertRemove" script at the top of the reply page ?

Anyway , Yes I'll bet the Crosley single tube will be a great schematic reference for Rachelle if she decides to try to get it to work .

And Rachelle , there will be one other adjustment besides the ones on the front of the radio that you may need to be familiar with if you try to run it . Inside the radio there will be what's called a "Grid Leak Resistor" that will usually be adjustable between around 2 to 20 Meg Ohms , give or take a few . Some are and some aren't adjustable .

Edited to add pictures . This is a typical adjustable grid leak as found in radios such as yours . See how the meter changes as the adjustment is pulled out or pushed in ? Adjusting this will be part of operating your radio if yours is adjustable , some are and some aren't and I figured if yours is , you would need to know about it .

[jr_tech]

Originally Posted by init4fun

Hi jr , Something very weird , when I look at your post I can't see the link to the crosley , but when I quote your post to reply to you the link appears ? I wonder of this is a setting on my end or something with VK , like the way I get the weird "Align OrderedUnorderedDecreaseIncreaseInsertRemove" script at the top of the reply.

That's weird... wonder if other viewers are not seeing the schematic? Some of the features on this site appear to be somewhat disfunctional since AK changed their format. For example, the labels for the various function buttons at the top of the message box have disappeared, but I remembered tha the web image paste button is the 5th from the right on the bottom row and used it to paste the link. This was done using Safari browser on a iPad mini...wonder if that could be a problem?
For grins, here is a picture of a Crosley 50, linked by the same method:



does that show up?
Note the odd "open book" style (Crosley patent?) tuning capacitor rather than the more common style tuning capacitor with multiple rotating plates.

Also, I attached a photo taken yesterday with the i Pad camera of the dim light that is given off by a 199 (long pin version) when connected to a 3 Volt supply...is that visible?

jr

edit add: Thanks Tom... here is the raw link, pasted in without using the "image" button:
http://www.crosleyradios.com/pics/50.jpg

[init4fun]

Yes , Thank You EM for telling us about the mistaken URL being what made his link invisible . And also Thank You JR for the pictures of the Crosley , the "open Book" capacitor is really cool , all your stuff shows up fine now . I remember seeing a late 20s early 30s Crosley cathedral that had such a setup being used for the volume control , the radio's circuits all ran "wide open" and the open book coupled or decoupled the antenna into the circuit , thereby raising or lowering the volume . I can't recall the model since it was one I repaired for a friend and not my own collection but I remember thinking it's gotta be the noisiest thing in the presence of any RFI .