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  #1  
Old 01-07-2017, 12:59 PM
Philco123 Philco123 is offline
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Wanted FLY 277

Looking for FLY 277 for a color roundie project I'm working on. Please let me know if you can help. Thanks!
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  #2  
Old 01-07-2017, 03:41 PM
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Have you thoroughly confirmed the original is defective?
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What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4

Reading between the scan lines since the mid 2000's.
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Old 01-08-2017, 08:25 AM
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You can try Chester Electronic Supply in Kenosha.
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  #4  
Old 01-08-2017, 09:42 AM
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Remember to check with the ETF museum too:

http://www.earlytelevision.org/flybacks.html
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Old 01-08-2017, 12:24 PM
Philco123 Philco123 is offline
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Thanks everyone for the great tips! I tried Chesters yesterday and they could not help. Nothing on the ETF website either. Keep the recommendations coming!
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  #6  
Old 01-09-2017, 10:35 AM
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277 is a thordarson for ctc 15 other numbers are D-305 and 113382
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  #7  
Old 02-04-2017, 07:12 PM
luvin luvin is offline
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i have 2 new d-306 in the box...I do not know if you can rewire to make it work
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  #8  
Old 02-04-2017, 09:24 PM
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Fly 277 is a Triad D304F, not a D305 as mentioned by another poster. The Triad D306 has the HV rectifier plate cap sitting in the top of the flyback, unlike the 113382/Fly 277 where the plate cap lead plugs on the HV rectifier.

113382 = Thordarson Fly 277, Triad D-304F, Stancor HO-601

The Triad D-306F is for an RCA 113392, a different flyback.
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Old 02-04-2017, 11:51 PM
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Does anyone have the spec sheet for the Fly 277? Physically a Fly 295 looks like a match, other than a couple components missing from the circuit board, which the holes are there to add them.







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Old 02-05-2017, 06:41 AM
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The schematic for Fly 277 is in this thread, posted by me:

http://www.videokarma.org/showpost.p...5&postcount=28

Different secondary DCR, above pin 5, among other ohmic differences.

Thordarson did a pretty complete job of differentiating the flybacks, unlike Stancor, who claimed broader application. Stancor didn't last in the flyback business..

Triad was another that tried to replace too many with one model of flyback - their tube Motorola flybacks have the wrong pulse winding characteristics. Jack Darr pointed this out. but we noticed it in a swap one time - no color, and swapping the original pulse winding onto the Triad flyback solved the problem.
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  #11  
Old 02-05-2017, 11:52 AM
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Well shucks. At some point it may become necessary to modify the horizontal circuitry to keep some of these roundies operational.
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  #12  
Old 02-05-2017, 02:26 PM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Findm-Keepm View Post
Fly 277 is a Triad D304F, not a D305 as mentioned by another poster. The Triad D306 has the HV rectifier plate cap sitting in the top of the flyback, unlike the 113382/Fly 277 where the plate cap lead plugs on the HV rectifier.

113382 = Thordarson Fly 277, Triad D-304F, Stancor HO-601

The Triad D-306F is for an RCA 113392, a different flyback.
I wonder if you can solder a plate lead and cap into the fixed plate cap and fill it with electrical grade silicone. That's if the electrical caracteristics are the same.
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  #13  
Old 02-05-2017, 02:34 PM
dieseljeep dieseljeep is offline
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The flyback shown in post # 9 could be from a rectangular 90 degree sweep chassis, RCA clone.
Flyback impedence would be wrong for the roundie yoke.
God! Its been ages since I replaced one.
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  #14  
Old 02-06-2017, 09:44 AM
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Quote:
Originally Posted by dieseljeep View Post
The flyback shown in post # 9 could be from a rectangular 90 degree sweep chassis, RCA clone.
Flyback impedence would be wrong for the roundie yoke.
God! Its been ages since I replaced one.
100 percent correct, sir. The FLY 295 is paired with a Y109, a 90-degree rectangular yoke for RCA CTC25 Clones. Roundies use the Y107 70 Degree yoke.

That FLY 295, aside from physical differences, is a close electrical match to the FLY 312 for CTC38 sets.
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  #15  
Old 02-06-2017, 11:27 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Findm-Keepm View Post
100 percent correct, sir. The FLY 295 is paired with a Y109, a 90-degree rectangular yoke for RCA CTC25 Clones. Roundies use the Y107 70 Degree yoke.

That FLY 295, aside from physical differences, is a close electrical match to the FLY 312 for CTC38 sets.
The RCA 119834 or FLY312 is for the CTC24, 31 and 38/39 chassis.
The RCA 115876 was for the CTC21,25,30 and 35 chassis. There's a slight difference. Don't remember the FLY#.
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