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Author Topic: Microfet 100  (Read 3426 times)

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Harley Hexxe

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Re: Microfet 100
« Reply #30 on: Time Format »

It's been 2009 since I messed with it. I think the cap you told me to change was C47 (possibly), which is located near the back left corner of the preamp as you are looking at it from the front.

   That was the preamp I had hoped I sent to Matt Trull a couple of years ago, but as it turned out, it was the other one he repaired.

   As it is, I don't believe I got anything from that preamp at all except for some low frequency static after the hot-plugging incident. I may be taking this to a repair shop I've found, if they are still in business, and let them have a go at it.
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MarshallJMP

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Re: Microfet 100
« Reply #31 on: Time Format »

Yes a cap and a resistor,now the problem is mostly the resistor. BTW did you got my PM?
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Harley Hexxe

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Re: Microfet 100
« Reply #32 on: Time Format »

Yes I did, reply sent.

   If you recall, The soldering iron I used was only 25 watt. Not enough to get the solder joints to flow smoothly. I could use my 75 watt solder gun, but that may be a bit too much and I don't want to risk loosening the traces. I'll probably get a 40 watt iron and re-flow the solder joints and see what happens, but I think there may be more than just that.

    Harley 8)
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MarshallJMP

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Re: Microfet 100
« Reply #33 on: Time Format »

Don't use soldering guns, bad idea.

Does it make any sound at all, like noise or a click when you change anything?
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Harley Hexxe

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Re: Microfet 100
« Reply #34 on: Time Format »

I would have to get it out, put in a new set of tubes, and hook it up. I haven't messed with it since I tried replacing the cap and resistor, and it didn't fix the problem.
I have to get a 40 watt iron to get those soldered in correctly. Currently the only iron I have is a 25 watt.
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rnolan

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Re: Microfet 100
« Reply #35 on: Time Format »

Hey Harley, I bought one of these (http://www.radioparts.com.au/product/38571665/zd929c-48w-soldering-station-digital-display-doss#.V4cr2qJPw0g). Should cost you around $70 USD ish.  It's been a great iron, I use the small chisel tip and you can dial in the temp you want. One of the best tools I ever bought  :thumb-up:
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