dphirschler Posted October 9, 2014 Share Posted October 9, 2014 I have a busted RF Modulator, and the thought has been going through my head to mod it. Basically, I want to convert it into a straight A/V cable. It’s a simple mod. Just cut off the RF box, and solder on RCA connectors for audio and composite video. So, before I start cutting, I thought I’d ask the question: Has anybody else considered (or tried) this? Is the video signal in that wire? Is the audio signal in that wire? Can it really be this simple? Darryl Quote Link to comment Share on other sites More sharing options...
ti99iuc Posted October 9, 2014 Share Posted October 9, 2014 here there are some link for the pha2036 models you can choice on the left side in the page the translation language you need.. hoping this can help Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted October 9, 2014 Share Posted October 9, 2014 I have a busted RF Modulator, and the thought has been going through my head to mod it. Basically, I want to convert it into a straight A/V cable. It’s a simple mod. Just cut off the RF box, and solder on RCA connectors for audio and composite video. So, before I start cutting, I thought I’d ask the question: Has anybody else considered (or tried) this? Is the video signal in that wire? Is the audio signal in that wire? Can it really be this simple? Darryl Yep it's all in there! You can put on the connectors you need, or even buy a a nice cable on eBay. Like this one << HERE >> Or this one with a different AUDIO connector if needed << HERE >> Of course there is always the BEST WAY.... << HERE >> It costs a few bucks more, but DAMN, you'll NEVER regret it! 2 Quote Link to comment Share on other sites More sharing options...
Iwantgames:) Posted October 9, 2014 Share Posted October 9, 2014 I think I need to get a F18A for myself for Xmas lol I have 3 or 4 busted RF modulators Quote Link to comment Share on other sites More sharing options...
Tursi Posted October 9, 2014 Share Posted October 9, 2014 I've done it numerous times. It's really that simple Quote Link to comment Share on other sites More sharing options...
slinkeey Posted October 9, 2014 Share Posted October 9, 2014 Yeah, this is what I did before I got a F18A. Quote Link to comment Share on other sites More sharing options...
Imperious Posted October 9, 2014 Share Posted October 9, 2014 The F18a does not output audio, so You still need an Audio cable connected to the rear A/V connector. Modding the RF unit is a waste of time when the outputs You want are direct from the A/V output. Quote Link to comment Share on other sites More sharing options...
dphirschler Posted October 9, 2014 Author Share Posted October 9, 2014 I have my F18A console, but the others are still stock. The RF Modulator itself is a waste in this day and age. It becomes somewhat useful as a straight A/V cable. Darryl Quote Link to comment Share on other sites More sharing options...
Gary from OPA Posted October 9, 2014 Share Posted October 9, 2014 the only people that should be uing RF modulator is ones still using TUBE TV-Sets for the real RETRO feel, but then you keep see the label 'Solid State Software' on the TI99 itself, meaning it has no TUBES in it. Here is a neat question, how big, and how many tubes would it take to reproduce the TI99? Hehe! 1 Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted October 9, 2014 Share Posted October 9, 2014 Here is a neat question, how big, and how many tubes would it take to reproduce the TI99? Hehe! And how big would the air conditioning system need to be to cool all those individual valves (tubes)! And how much power? Quote Link to comment Share on other sites More sharing options...
slinkeey Posted October 9, 2014 Share Posted October 9, 2014 'Solid State Software' on the TI99 itself, meaning it has no TUBES in it. I always thought that they were referring to it not being spinning disk. Quote Link to comment Share on other sites More sharing options...
Gary from OPA Posted October 9, 2014 Share Posted October 9, 2014 There must be something useful that these RF modulators can be used for. I have a case of 50 brand-new ones in storage in Canada, never been touched by human hands. At least the case can be useful, and video cable, but what for? Quote Link to comment Share on other sites More sharing options...
Gazoo Posted October 10, 2014 Share Posted October 10, 2014 There must be something useful that these RF modulators can be used for. I have a case of 50 brand-new ones in storage in Canada, never been touched by human hands. At least the case can be useful, and video cable, but what for? Metal cases like that can be useful for video applications where good shielding is required. They're hard to come by anymore, as everything is plastic nowadays. Rip the guts out and re-purpose them. Gazoo Quote Link to comment Share on other sites More sharing options...
dphirschler Posted October 10, 2014 Author Share Posted October 10, 2014 (edited) Just so I get this right... I see inside the case the connection are like so: red "B+" (guessing +12V) black "SYSTEM GND" yellow (3) "AUDIO IN" clear (4) "VIDEO IN" bare (2) "VIDEO GND" The video connection is easy as they are clearly labeled. The audio connection is the one I am not sure about. So I use the bare wire for the audio gnd, or black? UPDATE: I cut an A/V cable in half and soldered video to clear. And then I twisted left and right audio together and soldered it to yellow. The grounds for both audio and video were soldered to black/bare (which I twisted together). Works perfectly. Darryl Edited October 10, 2014 by dphirschler 1 Quote Link to comment Share on other sites More sharing options...
unhuman Posted October 10, 2014 Share Posted October 10, 2014 I was making the composite cables for a while... Think I charged $7 or $8 shipped at the time. Wasn't making money, really, just burning my fingers with the soldering iron. I may still have a connector... If you need it, LMK... Can send to you. 1 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted October 10, 2014 Share Posted October 10, 2014 For those of you mumbling about tubes--you have obviously not been introduced to Proton. Sven Dyroff had a TI-99/4A that was seriously damaged by a lightning strike. He was determined to resurrect it, using transistors and other discrete logic components to rebuild his beloved TI. He eventually had this nearly 3' by 2' board upon which all of Protons circuit cards (nice wire wrap thingies) were assembled and attached. He surrounded it with a cage made of some really stiff square-holed chicken wire (very small holes). Proton lived, and was an honored guest at several of the European TI Treffs. Here are some nice pictures of part of Proton, as seen from his keyboard. . .along with the GROM/GRAM/Bus Converter logic. 3 Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 10, 2014 Share Posted October 10, 2014 Something so very cool and yet so very wrong with Proton. What about using the old RF modulator cases to house a good A/V to HDMI adapter? Scalers seem to be getting difficult to find off-hand these days, and many are just stupid expensive (especially ones that work properly.) Might be a small side market alternative to the F18A for those who want to keep their system stock but work with the latest sets which do not have a composite input. 1 Quote Link to comment Share on other sites More sharing options...
dphirschler Posted November 9, 2014 Author Share Posted November 9, 2014 Concerning the RF Modulator mod... I just discovered the connector easily come apart if you slide the rubber cover off. I desoldered the original connections and soldered in an A/V cable (Red and White=audio, Yellow=video). It looks profesh after I put it all together! Darryl Quote Link to comment Share on other sites More sharing options...
Tursi Posted November 9, 2014 Share Posted November 9, 2014 That's a cool idea, OLD CS1! It'd be a literal plug and play attachment. Should be easy enough... there's 12v available to power it. Would be fun to try! Quote Link to comment Share on other sites More sharing options...
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