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  #16  
Old 05-09-2017, 09:27 AM
madlabs madlabs is offline
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Love crystal radios. So many different types of detectors you can make out of so many materials.
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  #17  
Old 05-09-2017, 09:28 AM
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Electronic M Electronic M is offline
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Location: Pewaukee/Delafield Wi
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Quote:
Originally Posted by Kamakiri View Post
One of the items I picked up was this up this ancient homebrew crystal radio from Tom (Electronic M), and found out that it was made from plans released from the US Bureau of Standards in 1922.

After a few hours of guesswork and research followed by understanding how it works, I installed a 1N4001 diode in place of the missing crystal detector and BOOM! I'm listening to Lou Rawls on a 95 year old radio with no power source!!!

Glad to see it lives. If you decide you want that cats whisker detector let me know.

Hope you brought that crystal set up on the variac first.
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Zenith: The quality stays in EVEN after the name falls off!
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  #18  
Old 05-09-2017, 02:44 PM
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Kamakiri Kamakiri is offline
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Funny you should say that, if you have one I'll buy it. Was gonna buy one to complete the radio anyway, but not necessarily hook it up....
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  #19  
Old 05-31-2017, 01:27 PM
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Electronic M Electronic M is offline
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Location: Pewaukee/Delafield Wi
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Quote:
Originally Posted by Electronic M View Post
I got everything I planned to and then some.

Prearranged: RCA 21CT55, Danish modern Zenith 23" color, 12 boxes of U-Matic/1" type C/ EIAJ 1/2" tapes and decks for the former two, plus some odds and ends.

Auction: The only known complete double-D mask variant Philco 48-1000, Sylvania dualette, Blond Hoffman hotel set, GE locomotive, 15" Sears color, parts.

Surprise finds, test jig, cheap 7JP4, some 'interesting' speakers.
Pictures at last.

The set on it's side was delivered to it's owner Mark sunday.
I need to get that danish modern Zenith into the basement* , and give it a date with the variac. I've tested the Umatic deck, and found it works well. I need to bring the tapes in from the garage, and work on the 1" deck.

*I Fixed and kicked out immediately post meet my friend's danish modern CTC-25 (the version with the SS audio stage) out to make room for it.

The dualette has been restored to operation as has the GE locomotive. Threads:
http://videokarma.org/showthread.php?t=269045
http://antiqueradios.com/forums/view...p?f=3&t=321701
The little white Sears color works, but needs adjustments, and has has a weak CRT (it is the only weak CRT I brought home from the meet).

The Blond Hoffman is in progress. All the papers have been changed and all the can lytics. It currently will warm up, the raster will horizontally unfold, and within ~45 sec the screen will fade out to dark. I've got no reception and no audio static (the vol pot will make scratchy sounds in the speaker). Thread soon.

Once that is done I'm going to either go after a predicta that has been waiting the better part of a year or the Philco 48-1000.

With all this work I'm going to have to buy some more caps soon.

The 21CT55 is sitting waiting for me to be ready to work on it. Thread here: http://videokarma.org/showthread.php...32#post3184732

I've been sparse on TV time lately but through ruthless efficiency I'm some how still managing to get stuff done.
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Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
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  #20  
Old 05-31-2017, 04:33 PM
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Sandy G Sandy G is offline
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Join Date: May 2003
Location: Rogersville, Tennessee
Posts: 9,571
All youse Yahoos w/yer damned ol' greasetal sets- Big deal ! I have a prewar mighty 2 tuber Arvin, on a good night I can actually pick up somethin' other than our local Angel Modulation station. Also have its 3 tooob bigger brother. I've had 'em for 15 years, the guy I got 'em from said they were el cheapo 'Salesman" sets that if they got "Borried" on the never payback plan. there wasn't too much money out one way or another. They are pretty tough little stamped steel cabinets. Kinda neat having these l'il guys-80 yrs old, & they STILL do what they were meant to do. No, they WON'T kick the EK-07 or one of my other Anchorage de' bBat from their Catbird seats, but they're STILL cyoot as bugs on a rug...
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  #21  
Old 06-01-2017, 02:35 PM
centralradio centralradio is offline
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Join Date: Feb 2014
Posts: 1,097
Quote:
Originally Posted by Electronic M View Post
Pictures at last.

The set on it's side was delivered to it's owner Mark sunday.
I need to get that danish modern Zenith into the basement* , and give it a date with the variac. I've tested the Umatic deck, and found it works well. I need to bring the tapes in from the garage, and work on the 1" deck.

*I Fixed and kicked out immediately post meet my friend's danish modern CTC-25 (the version with the SS audio stage) out to make room for it.

The dualette has been restored to operation as has the GE locomotive. Threads:
http://videokarma.org/showthread.php?t=269045
http://antiqueradios.com/forums/view...p?f=3&t=321701
The little white Sears color works, but needs adjustments, and has has a weak CRT (it is the only weak CRT I brought home from the meet).

The Blond Hoffman is in progress. All the papers have been changed and all the can lytics. It currently will warm up, the raster will horizontally unfold, and within ~45 sec the screen will fade out to dark. I've got no reception and no audio static (the vol pot will make scratchy sounds in the speaker). Thread soon.

Once that is done I'm going to either go after a predicta that has been waiting the better part of a year or the Philco 48-1000.

With all this work I'm going to have to buy some more caps soon.

The 21CT55 is sitting waiting for me to be ready to work on it. Thread here: http://videokarma.org/showthread.php...32#post3184732

I've been sparse on TV time lately but through ruthless efficiency I'm some how still managing to get stuff done.
Wow How nice.This will keep you busy until the next meetup Tom.

I noticed the interesting artwork on those set of speakers.
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