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  #16  
Old 01-06-2018, 09:50 PM
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ok so understand this is the only "vintage" tv I have ever messed with ... I had to go find an old DVD player and fix it it first (the mechanisms were sticking from non use). Got it working and scrounged up an RF modulator I remember I stowed away "just in case I ever needed one ?>

Then I had to scrounge for a non-widescreen DVD!.. sheese.. could only find the Wild Thornberry's.

Well, now to figure out if I want to build a quick 24vdc supply or look for another junker tv to rob a FBT out of.

Also, I clearly have no idea how to take a picture of a TV

Steve
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  #17  
Old 01-07-2018, 12:20 AM
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Perhaps figure out the turns per volt ratio of the transformer and add a new winding for the 24 volt supply.

jr
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  #18  
Old 01-07-2018, 01:19 AM
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Neat. Just throw a small power supply in the case somewhere lol
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  #19  
Old 01-07-2018, 08:45 AM
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Never had a pulse winding open, most unusual. At the time
Sonys with ADD/DEL on hand unit had no universal sub.
You may be able to random access any channel but I just
dont remember.

73 Zeno
LFOD !
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  #20  
Old 01-07-2018, 09:31 AM
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Quote:
Originally Posted by targeteye View Post
... I had to go find an old DVD player and fix it it first (the mechanisms were sticking from non use). Got it working and scrounged up an RF modulator I remember I stowed away "just in case I ever needed one ? ..........


Steve
What i don't understand , I have an old RCA 1979 B&W and i can't put a DVD to my tv !! is there some tricks or ??
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  #21  
Old 01-07-2018, 10:46 AM
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Quote:
Originally Posted by jr_tech View Post
Perhaps figure out the turns per volt ratio of the transformer and add a new winding for the 24 volt supply.

jr
Good suggestion but i think it would be easier to just install another supply considering the mechanical construction of the FBT.

Steve
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  #22  
Old 01-07-2018, 11:25 AM
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Quote:
Originally Posted by zeno View Post
Never had a pulse winding open, most unusual. At the time
Sonys with ADD/DEL on hand unit had no universal sub.
You may be able to random access any channel but I just
dont remember.

73 Zeno
LFOD !
The ADD/DEL is on the TV, you just need the remote to punch in the channel, then push ADD on the TV.

Steve
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  #23  
Old 01-07-2018, 11:43 AM
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What i don't understand , I have an old RCA 1979 B&W and i can't put a DVD to my tv !! is there some tricks or ??
You need one of 2 things.

1. A DVD player with modulated RF output. I suspect not many of these were made... if any.
2. An external modulator such as the one in the picture. It takes composite video, and L/R Audio and modulates the information on to usually Channel 3 or 4.

The modulators were produced by the gazillions when things like DVDs and VCRs stopped installing internal modulators and folks still had old tv,s that excepted only RF input (or had a limited number of inputs). Just search Ebay for Television RF modulator. You can now get them for very little money.

Now .. like I said i'm brand new to the "old tv" scene. Is there something about a B&W set where this will not work? I don't think so but perhaps someone more knowledgeable will chime in. I vaugely remember something about copyright protection messing with the signal to prevent duplication but I think that was on VCRs.

Steve
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  #24  
Old 01-07-2018, 12:48 PM
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Quote:
Originally Posted by targeteye View Post
You need one of 2 things.

1. A DVD player with modulated RF output. I suspect not many of these were made... if any.
2. An external modulator such as the one in the picture. It takes composite video, and L/R Audio and modulates the information on to usually Channel 3 or 4.

The modulators were produced by the gazillions when things like DVDs and VCRs stopped installing internal modulators and folks still had old tv,s that excepted only RF input (or had a limited number of inputs). Just search Ebay for Television RF modulator. You can now get them for very little money.

Steve

Don't worry, my B&W tv's working fine.. i have the RF output but not the device in the picture. So i should buy one..i just can watch my tv with a VCR(VHS)...
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  #25  
Old 01-07-2018, 03:34 PM
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Quote:
Originally Posted by targeteye View Post
You need one of 2 things.

1. A DVD player with modulated RF output. I suspect not many of these were made... if any.
2. An external modulator such as the one in the picture. It takes composite video, and L/R Audio and modulates the information on to usually Channel 3 or 4.

The modulators were produced by the gazillions when things like DVDs and VCRs stopped installing internal modulators and folks still had old tv,s that excepted only RF input (or had a limited number of inputs). Just search Ebay for Television RF modulator. You can now get them for very little money.

Now .. like I said i'm brand new to the "old tv" scene. Is there something about a B&W set where this will not work? I don't think so but perhaps someone more knowledgeable will chime in. I vaugely remember something about copyright protection messing with the signal to prevent duplication but I think that was on VCRs.

Steve
Macrovision copy protection existed on both VHS and DVD. Only some recordings had it, some players and external boxes eliminated it. Older TVs (pre-1980) sometimes were bothered by it.
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  #26  
Old 01-07-2018, 04:45 PM
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The project comes to an end.

Well folks its been interesting and a learning experience.. .

Installed an external regulator. Worked like a champ!

Then a test lead falls into a circuit and poof.. Fried circuitry .. bummer.

oh well. I'm going to put this in the attic and look for a working version of the same model and save this one for parts.

Steve
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