|
Changing the RF output channel on Pana 3/4=in VCR?
Hi Dave,
It is unlikely going to be that easy. Usually there are also some resonant circuits, or at least one, and these frequencies are pretty far apart. Here is what we did: I bought a modulator at Radio Shack for about $40. It's output frequency can be programmed digitally via push button to any channel in the UHF range. Then video and audio is fed from the VCR into that modulator. Its RF signal is fed into the house distribution and now we can watch videos at any TV in the house. Regards, Joerg http://www.analogconsultants.com |
Hi Dave,
It is unlikely going to be that easy. Usually there are also some resonant circuits, or at least one, and these frequencies are pretty far apart. Here is what we did: I bought a modulator at Radio Shack for about $40. It's output frequency can be programmed digitally via push button to any channel in the UHF range. Then video and audio is fed from the VCR into that modulator. Its RF signal is fed into the house distribution and now we can watch videos at any TV in the house. Regards, Joerg http://www.analogconsultants.com |
Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. "DaveC" wrote in message al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. "DaveC" wrote in message al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Hi Dave,
If you go for that just make sure the channel setting is not lost during a power outage. The Radio Shack version we have does keep the channel memorized. You can also select cable frequency mode or terrestrial (normal) TV channels. But not VHF, it is only UHF. Regards, Joerg http://www.analogconsultants.com |
Hi Dave,
If you go for that just make sure the channel setting is not lost during a power outage. The Radio Shack version we have does keep the channel memorized. You can also select cable frequency mode or terrestrial (normal) TV channels. But not VHF, it is only UHF. Regards, Joerg http://www.analogconsultants.com |
After reading all the posts so far, the question not asked is 'why use the
RF output at all?' jak Kevin Carney wrote: Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. "DaveC" wrote in message al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
After reading all the posts so far, the question not asked is 'why use the
RF output at all?' jak Kevin Carney wrote: Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. "DaveC" wrote in message al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Hi Dave,
If you can live with Ch3/4 that would be even cheaper. But we couldn't because we wanted to distribute into the house coax network and there is a strong station on Ch3, and a weaker one on Ch2. Other than that our box looks similar, except for a couple 7-segment displays and progamming buttons. Regards, Joerg http://www.analogconsultants.com |
Hi Dave,
If you can live with Ch3/4 that would be even cheaper. But we couldn't because we wanted to distribute into the house coax network and there is a strong station on Ch3, and a weaker one on Ch2. Other than that our box looks similar, except for a couple 7-segment displays and progamming buttons. Regards, Joerg http://www.analogconsultants.com |
You could also come out of the 3/4 " machine with video and audio.(I
doubt that it will be a stereo output) and put that into the ch 3 modulator and you will have ch 3 out. Lenny Stein, Barlen Electronics. "Kevin Carney" wrote in message ... Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. "DaveC" wrote in message al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
You could also come out of the 3/4 " machine with video and audio.(I
doubt that it will be a stereo output) and put that into the ch 3 modulator and you will have ch 3 out. Lenny Stein, Barlen Electronics. "Kevin Carney" wrote in message ... Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. "DaveC" wrote in message al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Kevin Carney wrote:
Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. That is damn ingenious! You see VCR's lying around for garbage pickup, so you could get one for nothing. |
Kevin Carney wrote:
Not what you want exactly but, take the RF output and put it into another VCR. Select Channel 5 on that VCR's tuner. It will now take your old units Channel 5 and put it out on Channel 3 or 4 (switch selectable). Or use the newer VCR's A/V inputs if the old unit has A/V outputs. You probably have a VCR or two lying around, so it won't cost you much. That is damn ingenious! You see VCR's lying around for garbage pickup, so you could get one for nothing. |
Is this a joke?You have a working 30-years old VCR?And you want to keep
it?Give it to seomeone poor.A brand-new stereo philips VCR cost only 95 euro. -- Dimitris Tzortzakakis,Iraklion Crete,Greece Analogue technology rules-digital sucks http://www.patriko-kreta.com dimtzort AT otenet DOT gr the return adress is corrupted Warning:all offending emails will be deleted, and the offender/spammer will be put on my personal "black list". ? "DaveC" ?????? ??? ?????? al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Is this a joke?You have a working 30-years old VCR?And you want to keep
it?Give it to seomeone poor.A brand-new stereo philips VCR cost only 95 euro. -- Dimitris Tzortzakakis,Iraklion Crete,Greece Analogue technology rules-digital sucks http://www.patriko-kreta.com dimtzort AT otenet DOT gr the return adress is corrupted Warning:all offending emails will be deleted, and the offender/spammer will be put on my personal "black list". ? "DaveC" ?????? ??? ?????? al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
"Tzortzakakis Dimitrios" wrote:
Is this a joke?You have a working 30-years old VCR?And you want to keep it?Give it to seomeone poor.A brand-new stereo philips VCR cost only 95 euro. How do you know the OP isn't poor? Tim -- Love is a travelator. |
"Tzortzakakis Dimitrios" wrote:
Is this a joke?You have a working 30-years old VCR?And you want to keep it?Give it to seomeone poor.A brand-new stereo philips VCR cost only 95 euro. How do you know the OP isn't poor? Tim -- Love is a travelator. |
Dave,
Many people never saw 3/4" Umatic Video Players / Recorders. I worked on a lot of Sony, some Panasonic & JVC and a few NEC. Sony was the best and they probably still have parts available. -- change .combo to .com for correct email ************************************************** * "We ought always to know precisely why a given job is done in a particular way, and why it is done at all, and why it can't be done more efficiently, if it must be done at all."-- T.J.Watson ************************************************** * "DaveC" wrote in message al.net... On Tue, 8 Jun 2004 05:22:11 -0700, Tim Auton wrote (in article ): Is this a joke? You have a working 30-years old VCR? And you want to keep it? Give it to seomeone poor.A brand-new stereo philips VCR cost only 95 euro. This is a 3/4-inch VCR, no longer available new. Used ones are available on e-bay for about $100, but they all will have the same issues with display interface. How do you know the OP isn't poor? The organization is a non-profit, always a bit low on funds. (Your question shows an enlightened view of the economic world.) -- DaveC This is an invalid return address Please reply in the news group |
Dave,
Many people never saw 3/4" Umatic Video Players / Recorders. I worked on a lot of Sony, some Panasonic & JVC and a few NEC. Sony was the best and they probably still have parts available. -- change .combo to .com for correct email ************************************************** * "We ought always to know precisely why a given job is done in a particular way, and why it is done at all, and why it can't be done more efficiently, if it must be done at all."-- T.J.Watson ************************************************** * "DaveC" wrote in message al.net... On Tue, 8 Jun 2004 05:22:11 -0700, Tim Auton wrote (in article ): Is this a joke? You have a working 30-years old VCR? And you want to keep it? Give it to seomeone poor.A brand-new stereo philips VCR cost only 95 euro. This is a 3/4-inch VCR, no longer available new. Used ones are available on e-bay for about $100, but they all will have the same issues with display interface. How do you know the OP isn't poor? The organization is a non-profit, always a bit low on funds. (Your question shows an enlightened view of the economic world.) -- DaveC This is an invalid return address Please reply in the news group |
Yes, you can search all US museums for that xtal.
-- Dimitris Tzortzakakis,Iraklion Crete,Greece Analogue technology rules-digital sucks http://www.patriko-kreta.com dimtzort AT otenet DOT gr the return adress is corrupted Warning:all offending emails will be deleted, and the offender/spammer will be put on my personal "black list". ? "DaveC" ?????? ??? ?????? al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Yes, you can search all US museums for that xtal.
-- Dimitris Tzortzakakis,Iraklion Crete,Greece Analogue technology rules-digital sucks http://www.patriko-kreta.com dimtzort AT otenet DOT gr the return adress is corrupted Warning:all offending emails will be deleted, and the offender/spammer will be put on my personal "black list". ? "DaveC" ?????? ??? ?????? al.net... This Panasonic NV-2110 3/4-inch VCR outputs RF on CH 5 or CH 6 (switch-selectable). There is no other choice of output channel. (This is an (*old* VCR, circa 1973, much discrete circuitry.) Is the determination of frequency as simple as changing the xtals for these channels? (RF mod circuit uses two xtals for these channels.) If I want change the circuit such that video is output to RF CH 3 or 4, is this a straightforward xtal swap? Recal required afterward? Has anyone done this before? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
| All times are GMT +1. The time now is 11:38 PM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com