ADA MICROTUBE 200 PDF

This is a Made in USA ADA Microtube amplifier in perfect working order. It is an excellent amp for guitar or bass amp rigs. It has a 12AX7. I’m not going to buy another one. I’m not gigging so I’m not in a rush to run out and buy. Maybe I’ll save up my mo Anonymous Reviewer’s review of ADA. Every now and then, I see an ADA MicroTube power amp pop up on eBay or in a local shop. I’ve had a Microtube for about two years.

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Any other simple fixes to quirky machines out there? Advertise on the most comprehensive and widely viewed musicians’ website. Shine a bright light into the front imcrotube behind the neon protect light when powering on.

The other issue it does have is that it goes into a “protect” mode and it takes a long time about a minute or two for it to power up sometimes. Jicrotube had heard about this and considered this as a potential issue when I bought it, but being an Microtybe fan, and having a certain amount of faith in their stuff and the support ADA depot helped me not worry too much about pulling the trigger on it.

They did a good job with the hybrid tube setup, I suspect they may have lifted this from part of their ampulator circuit: Occasionally I have to toggle the power switch to get it to fire up, but other than miicrotube it works great.

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The issue Tomcat refers to is a fairly common one where the power amp will take a while to start, and may be where you picked up the idea that they had reliability issues.

ADA MicroTube power amps – worth it? | Harmony Central

Any problem can be solved by the suitable application of nuclear weapons. Thanks for posting microtibe link. Its a great sounding power amp, and well worth the money IMO.

It was getting kind of old trying to hit just the right spot where the photo sensor is located with a flashlight. I’ve read that they really just use a couple of 12AX7 tubes to “warm up” a solid state tube section, but being that there aren’t many affordable 1U tube power amps out there, I’m tempted to try one. That’s the only total failure I’ve had in the 7 years I’ve owned the thing.

However, my understanding is that it does not affect normal operation and it can be corrected by replacing older caps in the “protect” circuit, microtueb necessary. I tried it and to my surprise, it works.

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I have a Microtube January 06, The 1U space is just great: As far as reliabilty goes, mine only totally crapped out once, but with the help of the folks at www. ,icrotube web search offered up with the solution to my particular issue. That’s incredibly useful and the ability to run it true stereo or bridged mono is nice.

Finally got around to changing the neon lamp and the power amp Powers Up Normally. That’s a great resource site for us ADA owners. Elantric’s Tips and Blog: I like that I can carry everything I need on a 4 space rack. This topic This board Entire forum Google. ADA MicroTube power amps – worth it? The solution is to buy a 75 cent neon light, pay the 5 dollar shipping microtubs, and solder it in.

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Appariently the brighness of neon protect light is adq tied to under current detection and that under current keeps the machine in protect mode.

Login or Sign Up. Both were a good solution to lugging around a heavy tube amp, and i prefered closed back speakers.

ADA microtube power amp – Weird Gear Problems and Solutions

Overall, I’m really glad I picked one up in the end. It has never required repair and does not suffer from long power up times. I’ve had a Microtube for about two years. Anyone own one of these?

So far, I’d say they are very reliable given my experience to date. Help FAQs Go to top. View the Media Kit.

September 30, I’ve been very happy with it. I own an old ADA microtube power amp that has seen years of good service, but now it will not power up and stays in protect mode. However, I’ve also heard that they have some reliability issues. Join the HC Newsletter. Please login or register. I love having a presence control on the power amp.

Over time, that neon light gets dimmer.

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