Optimod for parts

[Studio1]

Has anyone got a dead, dying or faulty 8000A or 8100 kicking around that they could part with?

 

[RadioMan203]

I'd actually would love to find an old 9000 AM unit for a project station I'm working on, but most any Optimod in working condition seems to be harder to find than hen's teeth. Finding one as a parts donor or basket case unit seems to be harder still.

 

[kenglish]

What kind of parts?

We have a split-chassis 8182A TV Optimod the boss might sell.

 

[LA_Guy]

Has anyone got a dead, dying or faulty 8000A or 8100 kicking around that they could part with?

The problem is that by now the release time potted module in the 8000 (and also used in the 9000) has failed and Orban has no more. I had hoped they would have published the schematic on this long obsolete part so the many 9000 and 8000 units could be restored, but as of now the answer is stll NO!
I will (yet again) ask Mr. Orban at this year's NAB.....

 

[BROADCAST]

Have you ever thought about unpotting the module?
If you have the patience have a go!

 

[BobOnTheJob]

I know where there's an 8100A transmitter chassis...it was a split unit and the studio portion is not available. It's in perfect working order. If anyone makes an offer for it off line, I will see to it that the owner gets it. I'm pretty confident that it is for sale.

 

[Studio1]

I know where there's an 8100A transmitter chassis...it was a split unit and the studio portion is not available. It's in perfect working order. If anyone makes an offer for it off line, I will see to it that the owner gets it. I'm pretty confident that it is for sale.

This is the XT chassis you are referring to I presume?

 

[BobOnTheJob]

I know where there's an 8100A transmitter chassis...it was a split unit and the studio portion is not available. It's in perfect working order. If anyone makes an offer for it off line, I will see to it that the owner gets it. I'm pretty confident that it is for sale.

This is the XT chassis you are referring to I presume?

I wish...love the 8100A/XT2 combo. This is an actual 8100A chassis, but (from memory) it has only the stereo generator card and cards 8 & 9. The Input cards and control card (was that #5?) are in the studio unit, which is in service protecting an STL system. This is a version of the 8100A where the AGC & Control are done at the studio, phone lines or discrete STL send the audio to the transmitter and the final peak limiting/stereo generation are done at the transmitter.

 

[TomT]

Unless it's been cannibalized, the transmitter side unit would have special #3 & #4 cards with just a few IC's, used as a buffer amps, and Cards 6, 7, 8, and 9. The original 3 & 4 cards would be the input cards to the ST chassis, while the #5 card does the crunching. The transmitter side of the 8100 is still very usable as a stereo generator, providing it is fed by processed audio. This is how I use my 8100. Mine is fed by the left and right outputs of my Omnia 3T, and is used to feed the exciter for a back-up transmitter. (My second composite output on the Omnia feeds a composite STL to an on-channel booster, so I couldn't use that for the back-up.)

The ST chassis makes a great stand-along processor for, well, studio uses. We're satellite fed (ABC AC and Classic Rock) and I feed the output of the computer into the ST chassis, then back into the on-air console. The satellite feed is sent through another channel. This set-up keeps the liners at a consistent level so they mix naturally with the satellite audio. Especially on the AC format, where they will trigger a line voiced for us by the on-air DJ, then that DJ follows with his banter. Sounds great if the levels match, not-so-swift if the liner is too hot or too low.

 

[BobOnTheJob]

Unless it's been cannibalized, the transmitter side unit would have special #3 & #4 cards with just a few IC's, used as a buffer amps, and Cards 6, 7, 8, and 9. The original 3 & 4 cards would be the input cards to the ST chassis, while the #5 card does the crunching. The transmitter side of the 8100 is still very usable as a stereo generator, providing it is fed by processed audio. This is how I use my 8100. Mine is fed by the left and right outputs of my Omnia 3T, and is used to feed the exciter for a back-up transmitter. (My second composite output on the Omnia feeds a composite STL to an on-channel booster, so I couldn't use that for the back-up.)

The ST chassis makes a great stand-along processor for, well, studio uses. We're satellite fed (ABC AC and Classic Rock) and I feed the output of the computer into the ST chassis, then back into the on-air console. The satellite feed is sent through another channel. This set-up keeps the liners at a consistent level so they mix naturally with the satellite audio. Especially on the AC format, where they will trigger a line voiced for us by the on-air DJ, then that DJ follows with his banter. Sounds great if the levels match, not-so-swift if the liner is too hot or too low.

You're correct Tom...there are simple #3 and #4 cards in the 8100A transmitter chassis. Been a while since I looked at it, but now that you mention it, that is how I set the drive level to it while it was in service.

I've had a couple of questions about it...if anyone offers $1000 for it, I will take the offer to the owner...who will probably part with it for that.

 

[BobOnTheJob]

Unless it's been cannibalized, the transmitter side unit would have special #3 & #4 cards with just a few IC's, used as a buffer amps, and Cards 6, 7, 8, and 9. The original 3 & 4 cards would be the input cards to the ST chassis, while the #5 card does the crunching. The transmitter side of the 8100 is still very usable as a stereo generator, providing it is fed by processed audio. This is how I use my 8100. Mine is fed by the left and right outputs of my Omnia 3T, and is used to feed the exciter for a back-up transmitter. (My second composite output on the Omnia feeds a composite STL to an on-channel booster, so I couldn't use that for the back-up.)

The ST chassis makes a great stand-along processor for, well, studio uses. We're satellite fed (ABC AC and Classic Rock) and I feed the output of the computer into the ST chassis, then back into the on-air console. The satellite feed is sent through another channel. This set-up keeps the liners at a consistent level so they mix naturally with the satellite audio. Especially on the AC format, where they will trigger a line voiced for us by the on-air DJ, then that DJ follows with his banter. Sounds great if the levels match, not-so-swift if the liner is too hot or too low.

You're correct Tom...there are simple #3 and #4 cards in the 8100A transmitter chassis. Been a while since I looked at it, but now that you mention it, that is how I set the drive level to it while it was in service.

I've had a couple of questions about it...if anyone offers $1000 for it, I will take the offer to the owner...who will probably part with it for that.

I was in front of this unit this morning and to clarify, it has the "simple" cards 1 and 2 and the rest of the cards except for 5. It also has a normal 8100A card face plate.

 

[TomT]

You might look around and see if the ST chassis (with cards) is sitting in storage somewhere. Makes the unit much more valuable.

 

[BobOnTheJob]

You might look around and see if the ST chassis (with cards) is sitting in storage somewhere. Makes the unit much more valuable.

It's not...the ST portion is protecting an STL on another station that's no longer under the same ownership.

 

[RadioCtrldWife]

Hi Bob-
I tried to PM you, but I'm a new user and I'm unable to use the feature.

Is that 8100 still available?

-Kim