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Posts posted by Deang
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I would just clean them up really good. The networks can be cleaned up too, and unless you smell or see oil (from the capacitors) - it is certainly something you can put off for a while.
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I stock T2A’s but I am limiting what I have left for repair/replace and new builds.
The sound is different between the T2A and 3636 because the 3636 increases the working inductance in parallel with the driver (much larger core). This changes the slope below Fc. The T2A in parallel with the K-55-V creates a 12dB/octave midrange.
I’ve learned that no one cares. Any change in sound constitutes an “upgrade”. ¯\_(ツ)_/¯- 1
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What is your point? Why would I care about a part that has external resemblance but has non matching brand and part numbers to the originals. I think I’ll stick with the information I get from Roy/Klipsch.
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I used to pay Mike to measure things for me, now I have to pay to make him stop.
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17 hours ago, Bacek said:
Take your picture to “Ask the Historian” section and ask Jim Hunter.
I tried googling the part number and came up with nothing. Just looks like the small motor run they used for years. They were all Mylar.
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Let’s not hijack this nice thread.
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Your network probably has two capacitors in parallel to make a 13uF. Read the labels on the capacitors.
Take everything apart and start over. Just follow the schematic.
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2 minutes ago, Dave MacKay said:
How about posting the info?
All I recall was mention of Roy having spent some time having a discussion with JEM. To my knowledge, no specs or special requirements related to how certain caps affect the transfer function were ever disclosed.
If there is any substance to the claim, why can’t we see data to substantiate it?
Yeah, actually discussed ad nauseam. I copied some of the discussion to my facebook page.It’s a tired, old topic.
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1 hour ago, Bacek said:
If they did those mylar capacitors with all same parameters like old PIO capacitors and then a the same time same as MKP's used around AK3 then that is word class archivment.
AK/AL series didn’t use MKP (polypropylene) capacitors, they used polyester/Mylar.Mylar specs out only slightly better than PIO.
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See my first post. Inductance (11.4mH) on tap being used on the T5A (-6dB) is the same as Tap 3 on the T2A (-6 dB). Also notice that the 1.75mH is in parallel with both the autoformer and the driver.
Unless the inductance of the 3654 or 3636 is the same (it’s not) as the T5A or T2A, you will not get the same result. Also, using a 3654 or 3636 now makes the 1.75mH value incorrect.
As for the coils, the DCR also has to match.
This is why I no longer get involved in someone else’s DIY project. People don’t listen and they always know more than I do. ¯\_(ツ)_/¯
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I can get very close.
You're lucky. The working inductance on the output tap of the T5A autoformer is the same as tap 3 on the T2A. I have T2A's but no T5A's. I do not stock every part Klipsch ever used in these networks - just too expensive. However, the autoformer and capacitors are the most critical. What makes the most sense is to send me the networks and I will retrofit with the correct parts.
dgwescott@gmail.com
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Why do that when you can use what Klipsch uses.
Contact Jim at JEM Performance Audio and buy a kit. If you want me to do the work, I’ll do the pair for $215 parts and labor.
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Bruce is right. Those are the GE motor runs that Bob used to use. That doesn’t look like their work though. They use a polypropylene dielectric, which will make the top section brighter than it should be. OEM capacitors are Mylar. They are not very expensive.
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We use APC at work on our network switches. You sure the unit just didn’t fail to do its job? Short of a direct lightening strike - should have protected your amp. Which unit do/did you have?
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@G87 I’m authorized to build vintage networks for Klipsch - normally Heritage - but I have OEM parts to build these if you’re interested.
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2 hours ago, jjptkd said:
The compression driver is at least the size of the voice-coil maybe larger so no false advertising here looking at pictures of the raw diaphragms I'd guess the driver is a 1.75 or 2" max not sure why Dean made that distinction?
I only pointed it out because people often conflate the exit size with VC.
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That’s the diameter of the voice coil.
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^This.
Welcome to the forum Scott.
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A 50 year old motor run that is sweating oil should be replaced. Doesn’t matter how it measures. You don’t have to see it, you can smell it. Also, since when is a 50 year old motor run an example of a “modern day film cap”?
There is a good ohm difference between the oil cans in series versus new axial wound dry polyesters. It’s audible. Well, unless you’ve lost a good deal of your high frequency hearing.
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I charge $175 a pair to do those. Cost includes parts, labor and return shipping.
All of the parts are soldered to the back of the terminal cup. You might want to take a look at what you are getting into before you opt for a kit.
Dean
dgwescott@gmail.com
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You must have more than 5 posts to use the PM feature. My preferred method of contact is email:
dgwescott@gmail.com
Jim at JEM handles board recap jobs and I do the following PCB’s. Heresy II, Forte, Forte II, Chorus and Chorus II.
I do new builds but have limited that work to a handful of Heritage networks.
Link below to pinned ad in the Garage Sale section.
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https://www.parts-express.com/Gold-Plated-Banana-5-Way-Speaker-Terminal-260-302?quantity=1
CESS Terminal Connector Binding Post Banana Plug Jack Socket Panel/Chassis Mount - Length 1.1" / 29mm (jcx) (4 Pack) https://a.co/d/cU6A2yN
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Crites 3636 vs. Klipsch T2A
in Technical/Restorations
Posted
I would say more like $200. This isn’t bad. When I had T2A’s to sell, they were going for $88 a pair.
https://www.ebay.com/itm/355012752434?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=7dbacnheruu&sssrc=4429486&ssuid=1fiukgbcsqo&var=&widget_ver=artemis&media=COPY
https://www.ebay.com/itm/256220195121?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=qurAOMZ2SYK&sssrc=4429486&ssuid=1fiukgbcsqo&var=&widget_ver=artemis&media=COPY
https://www.ebay.com/itm/145286598750?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=GivAp-udRVi&sssrc=4429486&ssuid=1fiukgbcsqo&var=&widget_ver=artemis&media=COPY