4 Generations of Channel Master 0089 Baluns. - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 6 Old 01-22-2019, 12:40 PM - Thread Starter
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Arrow 4 Generations of Channel Master 0089 Baluns.

I thought you guys would enjoy this.
Especially Rabbit

Anybody ever come across and or test the white baluns?
Notice the the first generation is using stranded twin lead.

Once I clean the strands, I am planning on putting the one that I partially dissected in the air just for fun.
I may silver solder the leads afterwards to see if it creates a difference in signal strength.







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post #2 of 6 Old 01-22-2019, 08:32 PM
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Thanks, MSev; interesting find. Never saw the white one before.

If you can not measure it, you can not improve it.
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post #3 of 6 Old 01-23-2019, 07:08 AM - Thread Starter
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Quote:
Originally Posted by rabbit73 View Post
Thanks, MSev; interesting find. Never saw the white one before.
When I cam across them I immediately though of you.

The white one with the solid lead actually has R.O.C. on it along with Tiawan. I dont think I have seen "Republic of China" on any other balun.
While the pinkish white just says "Made in Tiawan".

I wonder if this a case similar to Macom.
They made 2 different outside baluns. I believe is OB-1 and OB-3. The OB-1 had stranded leads while the OB-3 had solid leads.

The difference is though CM never changed their model number. Ergo why I was thinking I have 2 different generation white baluns.
Also now that I consider it. The R.O.C could indicate that balun is actually older.
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post #4 of 6 Old 01-23-2019, 07:32 AM
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Quote:
Originally Posted by MSev View Post
The white one with the solid lead actually has R.O.C. on it along with Tiawan. I dont think I have seen "Republic of China" on any other balun.
While the pinkish white just says "Made in Tiawan".

Also now that I consider it. The R.O.C could indicate that balun is actually older.
Made in Taiwan/ROC, would indicate older. Later, production was moved to China to lower costs. Unfortunately, it also lowered quality.

We also see that with tools available in auto parts stores. The tools made in Taiwan were much better quality than the current tools made in China.

Some US companies maintain tighter quality control on items made overseas, which costs more, so they have to charge more. That is the Channel Master method.

The two RCA TVPRAMP1R preamps that I bought were inexpensive, but proved to be defective.

I would rather pay a little more to get a reliable product.

If you can not measure it, you can not improve it.
Lord Kelvin, 1883
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post #5 of 6 Old 01-23-2019, 04:00 PM - Thread Starter
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Originally Posted by rabbit73 View Post
Made in Taiwan/ROC, would indicate older. Later, production was moved to China to lower costs. Unfortunately, it also lowered quality.

We also see that with tools available in auto parts stores. The tools made in Taiwan were much better quality than the current tools made in China.

Some US companies maintain tighter quality control on items made overseas, which costs more, so they have to charge more. That is the Channel Master method.

The two RCA TVPRAMP1R preamps that I bought were inexpensive, but proved to be defective.

I would rather pay a little more to get a reliable product.
I hear ya.
I am actually using a KitzTech KT200 Coax at the moment.

I also picked up several green Japanese balans as well as a bunch Jerrold T-6000 baluns. Both are indoor. However with some electrical shrink wrap they would outdoor ready.

I am thinking the Jerrolds probably have good VHF response. I wish I had an accurate means to bench test them.
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post #6 of 6 Old 11-09-2019, 10:33 AM
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Taiwan is the Best

Baluns are often overlooked in OTA systems, when in fact it is a very important part.

As the transducer to convert 300 -> 75 ohms, the most efficient is preferred results in less signal loss.

Here is a summary of the baluns I have tested.

1. Channel Master Model 0089 - Manufactured in Taiwan ROC 08-0068 -> The best balun ever made!
2. Channel Master Model 0089 - Manufactured in China (Red Boxes)
3. Channel Master Model 94444 - Manufactured in China (Plastic Bags) Shipped Channel Master 4251 and 4228 ~ 15 years ago

By far, the Channel Master Taiwan are the best baluns if you can find them. The box will indicate the origin, or simply look at the balun.

I have changed and swapped baluns and you can tell the difference. In several tests the picture would not even decode with a recently purchased over the counter cheap balun when compared to the above listed baluns.






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